1.Thekeyenzy mei nt her egul at i onoff at t yaci dsy nt hesi si s A. acet y l CoAcar boxy l ase B. AMPact i v at edpr ot ei nki nase C. pr ot ei nphosphat ase D. noneoft hese Answer : Opt i onA 2. Ar achi donat ehas20car bonat omswi t h A. 3doubl ebonds B. 2doubl ebonds C. 4doubl ebonds D. 8doubl ebonds Answer : Opt i onC 3. I nt hei nt est i ne, t hedi et ar yf at sar ehy dr ol y sedby A. t r i acy l gl y cer ol l i pase B. adeny l at ecy cl ase C. pancr eat i cl i pase D. pr ot ei nki nase Answer : Opt i onC 4. HDLsar esy nt hesi zedi n A. bl ood B. l i v er C. i nt est i ne D. pancr eas 5. Tr i acy l gl y cer ol sar e A. sol ubl ei nwat er B. i nsol ubl ei nwat er C. sol ubl ei nwat eratel ev at edt emper at ur e D. par t i al l ysol ubl ei nwat er Answer : Opt i onB 6. Ani mal scannotconv er tf at t yaci dsi nt ogl ucosebecause A. acet y l CoAcannotbeconv er t edt opy r uv at e B. absenceofmal at esy nt hase C. absenceofdehy dr ogenase D. absenceofaket ogl ut ar at edehy dr ogenase Answer : Opt i onA 7. I neukar y ot esf at t yaci dbr eakdownoccur si n A. mi t ochondr i al mat r i x B. cy t osol C. cel l membr ane D. endopl asmi cr et i cul um Answer : Opt i onA 8. Whati st hemaj orpr ot ei nconst i t uentofhi ghdensi t yl i popr ot ei n( HDL) ? A. Apol i popr ot ei nAl B. Apol i popr ot ei nCl C. Apol i popr ot ei nE D. Noneoft hese Answer : Opt i onA 9. Phosphol i pi dcont ai ns A. hy dr ophi l i cheadsandhy dr ophobi ct ai l s B. l ongwat er sol ubl ecar bonchai ns C. posi t i v el ychar gedf unct i onal gr oups D. bot h( b)and( c) Answer : Opt i onA 10. Mi cel l esoff at t yaci dsi nwat erar eor gani zedsucht hatt he_ _ _ _ _ _ _ _ _ _ f acest hesol v entandt he_ _ _ _ _ _ _ _ _ _ar edi r ect edt owar dt hei nt er i or A. car boxy l i caci dgr oups, hy dr ocar bonchai nsheads B. hy dr ophi l i cheads, hy dr ophobi ct ai l s C. hy dr ocar bonchai ns, car boxy l i caci dgr oups D. bot h( a)and( b) Answer : Opt i onD 11. Chol est er ol emi ameans A. l ackoff unct i onal LDLr ecept or s B. l ackoff unct i onal HDLr ecept or C. hi ghsensi t i v i t yt of at t yf oodi nt ake D. noneoft heabov e Answer : Opt i onA 12. Fat t yaci dsbr eakdownofeukar y ot esoccur si n A. mi t ochondr i al mat r i x B. cel l membr ane C. cy t osol D. endopl asmi cr et i cul um Answer : Opt i onA 13. VLDLsar esy nt hesi zedi n A. bl ood B. l i v er C. i nt est i ne D. pancr eas Answer : Opt i onB 14. Chy l omi cr onsar esy nt hesi zedi n A. bl ood B. l i v er C. i nt est i ne D. pancr eas Answer : Opt i onC 15. Howmanyt y pesofl i popr ot ei nsar et her e? A. 2 B. 6 C. 8 D. 5 Answer : Opt i onD 16. Whi choft hef ol l owi ngi scor r ect ? A. Cobal ti spar tofv i t ami nB12. B. Cobal twi l l notr epl acet heneedf orv i t ami nB12i nhumans C. Bot h( a)and( b) D. Cobal twi l l r epl acet heneedf orv i t ami nB12i nhumans Answer : Opt i onC 17. Whi choft hef ol l owi ngi sr equi r edasacomponentofbl oodhemogl obi n? A. I r on B. Magnesi um C. Cal ci um D. Copper Answer : Opt i onA 18. Addi ng_ _ _ _ _ _ _ _ _ _t oabr eakf astofcer eal wi l l hel py ourbodyabsor bi r on. A. mi l k B. or angej ui ce C. cof f ee D. wat er Answer : Opt i onB 19. Whi choft hef ol l owi ngi oni sr equi r edf ort hedev el opmentofsoundt eet h wi t hr esi st ancet ot oot hdecay ? A. Fl uor i dei on B. Sodi um i on C. Chl or i dei on D. Magnesi um i on Answer : Opt i onA 20. Whi choft hef ol l owi ngt wobev er agescont r i but e20t o30per centofour dai l ymanganesei nt ake? A. Mi l kort ea B. Col aorcof f ee C. Teaoror angej ui ce D. Mi l koror angej ui ce Answer : Opt i onA 21. Thel owestener gyv al uel i pi df orhumannut r i t i oni s A. ol i v eoi l B. ol est r a C. mar gar i ne D. car di ol i pi h Answer : Opt i onB 22. Howmanycl assesofst er oi dhor monesar et her e? A. 3 B. 2 C. 4 D. 5 Answer : Opt i onD 23. Thenumberofwat ermol ecul esconsumedbyt hef or mat i onof phosphat i dy l ser i near e A. 0 B. 1 C. 2 D. 4 Answer : Opt i onA 24. Sy nt hesi soff at t yaci dt akespl acewhen A. f at t yaci dar epl ent i f ul B. car bohy dr at ei spl ent i f ul C. car bohy dr at eandener gyar epl ent i f ul D. noneoft hese Answer : Opt i onC 25. Whi choft hef ol l owi ngi scal l edmi l kej ect i onhor mone? A. Pr ol act i n B. Vasopr essi n C. Oxy t oci n D. Al l oft hese Answer : Opt i onC CHOLESTEROLANDLI POPROTEI NS Q. 1–Agal l st onet hatbl ockedt heupperpar toft hebi l eductwoul dcause i ncr easei nwhi choft hef ol l owi ngs? a)Theexcr et i onoff at si nt hef eces b)For mat i onofchy l omi cr ons c)Excr et i onofbi l esal t s d)Conj ugat i onofbi l eaci ds e)Recy cl i ngofbi l esal t s ANSWER: A Q. 2-An8y ear ol dboypr esent swi t hor angecol or edt onsi l s, av er yl owHDL l ev el sandanenl ar gedl i v erandspl een.Hei sdi agnosedwi t hTangi er di sease.Tangi erdi seasei sadi seaseofchol est er ol t r anspor t , sucht hat chol est er olcannotpr oper l yexi tt hecel l andf or m HDL.Whi choft he f ol l owi ngst at ement sbestdescr i besHDL? a)I ti spr oducedi nskel et al muscl es b)I tscav engeschol est er ol f r om cel lmembr anes c)I t smaj orpr ot ei ni sapoE d)I ti sf or medwhenVLDLi sact eduponbyl i popr ot ei nl i pase e)I tact i v at esACAT ANSWER. .B Q3-I ncont r astt osecondar ybi l esal t s, whi choft hef ol l owi ngi snota char act er i st i cofpr i mar ybi l esal t s a)Ar ehy dr oxy l at edatposi t i on17 b)Hav eanoxi di zedsi dechai n c)Canbeconj ugat edt oTaur i neandgl y ci ne d)Ar er eabsor bedi nt hei nt est i ne e)For medf r om chol y l coA. ANSWER. . .A Q. 4I nt heconv er si onofchol est er ol t obi l esal t s, whi choft hef ol l owi ng st at ement sbestdescr i best hepr ocess? a)Car bon8i shy dr oxy l at ed b)Thesi dechai ncanbeconj ugat edwi t hgl y ci neorTaur i ne c)Thedoubl ebondi soxi di zed d)Thehy dr oxy l gr oupat3car bonr emai nsi nt hebet aposi t i on e)I toccur si nt hebi l educt . ANSWER. . .B Q. 5-Whi choft hef ol l owi ngst at ement sbestdescr i besl owdensi t y l i popr ot ei n( LDL)? a)I thast hemostTr i acy l gl y cer ol andt hel eastpr ot ei n b)I thasmor eTr i acy l gl y cer ol t hanv er yl owdensi t yl i popr ot ei n( VLDL) c)I thast hel owestTr i acy l gl y cer ol cont ent d)I thast hehi ghestpr ot ei ncont ent e)I thast hehi ghestchol est er ol cont ent . ANSWER. . .E Q. 6-Whi choft hef ol l owi ngapopr ot ei nsi sanact i v at orofl i popr ot ei nl i pase? a)ApoA b)ApoB c)ApoCI I d)ApoD e)ApoE ANSWER. .C Q. 7-Whi choft hef ol l owi ngl i popr ot ei nsar et hemaj orcar r i er sofTr i acy l gl y cer ol ? a)I DLandLDL b)VLDLandLDL c)Chy l omi cr onsandVLDL d)HDLandVLDL e)Chy l omi cr onsandHDL. ANSWER. .C Q. 8-A60y ear ol dwomanpr esent swi t hchestpai nr adi at i ngt oherl ef t ar m.Shei sdi agnosedwi t hMy ocar di al i nf ar ct i onandi spr escr i bedast at i n medi cat i on.St at i nsi nhi bi tHMGCoAr educt ase.Howdoesi nhi bi t i onof HMGCoAr educt asecausel ower i ngofchol est er ol andLDLl ev el s? a)I ti ncr easeser um l ev el ofHDL b)I tdecr easesser um l ev el ofLDLbypr omot i ngcat abol i sm c)I ti nhi bi t st hef or mat i onofLDLf r om I DL d)I ti nhi bi t st her at el i mi t i ngst epi nchol est er ol bi osy nt hesi s e)I ti nhi bi t ssy nt hesi sofLDLr ecept or s. ANSWER. . .D Q. 9)A35y ear ol dwomanpr esent swi t hcr ushi ngsubst er nal chestpai n andshor t nessofbr eat h.Acor onar yar t er yi soccl udedduet oan at her oscl er ot i cpl aque, andshei sdi agnosedwi t hhav i ngmy ocar di al i nf ar ct i on.Herser um chol est er ol l ev el i s700mg/ dl .Thef ami l yhi st or yi s posi t i v ef orhi ghchol est er ol l ev el andsheseemst obehav i ngf ami l i al hy per chol est er ol emi a.Whati st hepossi bl ebi ochemi cal def ecti nt hi s genet i cdi sor der? a)Hi ghact i v i t yofHMGCoAr educt ase b)Lowact i v i t yof7-hy dr oxy l ase c)Abnor mal LDLr ecept or s d)Mor econv er si onofVLDLt oLDL e)Lessconcent r at i onofHDL. ANSWER. . .C Q. 10) -A40-y ear ol dmanpr esent swi t hsev er epai ni nt hel egsupon wal ki ng.Hei sdi agnosedwi t hat her oscl er ot i cpl aquesi nt hear t er i esofhi s l egs.Hi ghl ev el ofchol est er ol andLDLcont r i but et ot hef or mat i onof at her oscl er osi s.Whi choft hef ol l owi ngi sdi gest edt of or m LDL? a)I DL b)Chy l omi cr ons c)HDL d)Chol est er y l est er s e)Chol est er ol . ANSWER. . .A Q. 11-A23y ear ol df emal epr esent swi t hl owr edbl oodcel l count , cor neal opaci t i esandki dneyi nsuf f i ci ency .Shei sdi agnosedwi t h l eci t hi n: chol est er ol acy l t r ansf er ase( LCAT)def i ci ency .I nwhi chof t hef ol l owi ngr eact i onsLCATi si nv ol v ed? a)Tr ansf erofchol est er ol est er sf r om HDLt oVLDL b)Hy dr ol y si sofHDL c)Upt akeofchol est er ol f r om l i v ercel l s d)Conv er t i ngchol est er ol t oChol est er y l est er s e)Pr omot i ngupt akeofHDLi nt ol i v ercel l s ANSWER. . .D Q. 12-Whi choft hef ol l owi ngsi snotahy pol i pi demi cdr ug? a)St at i n b)Ni aci n c)Fol i caci d d)Cl of i br at e e)Ezet i mi be. ANSWER. . .C Q. 13-Thesy nt hesi sofHMGCoAcant akepl ace- a)onl yi nmi t ochondr i a b)Onl yi ncy t opl asm ofal lnucl eat edmammal i ancel l s c)I nt heendopl asmi cr et i cul um ofal l mammal i ancel l s d)I nt hel y sosomes e)I nbot hcy t osol andmi t ochondr i a. ANSWER. . .B Q. 14-Whi choft hef ol l owi ngbestdescr i best her ol eofchol est er ol est ert r ansf erpr ot ei n( CETP)? a)I tconv er t schol est er ol f r om LDLt ochol est er ol est er s b)I ti st hemaj orpr ot ei nofHDL c)I texchangeschol est er ol est er sf r om HDLt oot herl i popr ot ei ns d)I tact sasal i gandf orhepat i cr ecept or sofHDL e)I ti sanact i v at orofLCAT. ANSWER. . .C Q. 15-Whi choft hef ol l owi ngsar enotl i pot r opi cagent s? a)Essent i alami noaci ds b)Essent i al f at t yaci ds c)Vi t ami nA, CandE d)Bi ot i nandPant ot heni caci d e)Sy nt het i cant i oxi dant s ANSWER. . .D. SET2 1) -Chol est er ol i sapr ecur sorofal l oft hef ol l owi ngsexcept - a)Taur ochol at e b)Gl y cochol at e c)Cal ci t r i ol d)Cor t i cost er oi ds e)Cal ci t oni n. ANSWER. . .E 2) -Al l t he27car bonat omsofchol est er ol ar eder i v edf r om- a)Acet y l coA b)Acet oacet y l coA c)Pr opi ony l coA d)Succi ny l coA e)Mal ony l coA ANSWER. . .A 3) -Cy t osol i c3hy dr oxy 3met hy l gl ut ar y l CoA( HMGCoA)i sr educed t oMev al onat ef ort hesy nt hesi sofchol est er ol , t heenzy mecat al y zi ng t hi si r r ev er si bl est epi s- a)Thi ol ase b)Thi oest er ase c)Thi ophor ase d)HMGCoAsy nt hase e)HMGCoAr educt ase. ANSWER. . .E 4) -Whi choutoft hef ol l owi ngst at ement sbestdescr i besaboutACAT ( Acy l coAchol est er ol acy l t r ansf er ase)? a)Requi r edf orr ev er sechol est er ol t r anspor t b)Rat el i mi t i ngenzy mef orbi l eaci dsy nt hesi s c)Requi r esmonounsat ur at edf at t yaci df orest er i f i cat i onof chol est er ol d)Requi r edf ordegr adat i onofchy l omi cr onsandVLDL e)I ti samaj orcomponentofHDL. ANSWER. . .C 5) -Whi choutoft hef ol l owi ngst at ement si si ncor r ectaboutbi l esal t s ? a)Maj orconst i t uentofbi l e b)Sol ubi l i zedi et ar yl i pi ds c)Maj orbr eakdownpr oduct sofchol est er ol d)Taur ochol at ei st hemaj orbi l esal t . e)Bi l esal t sar ehi ghl yef f ect i v edet er gent s ANSWER. . .D 6)–Adef i ci encyofapopr ot ei nCl l r esul t si nt hedi sease hy per l i popr ot ei nemi at y peI , i nwhi cht her ei sasi gni f i canti ncr easei n t heconcent r at i onofpl asmat r i acy l gl y cer ol .Whi choft hef ol l owi ngi s t r ueaboutt hecondi t i on? a)VLDLandHDLi ncr ease b)Pl asmaappear smi l ky c)Ther ei sar i skf orpr emat ur eI HD d)Ser um t ot al chol est er ol i ncr eases e)ApoCI Iact sasanact i v at orofLCATenzy me. ANSWER. .B 7) -Whi choft hef ol l owi ngl i pi dl ower i ngdr ugsactbyi nhi bi t i ngt he absor pt i onofdi et ar ychol est er ol ? a)St at i ns b)Ezet i mi be c)Col est i pol d)Cl of i br at e e)Chol est y r ami ne ANSWER. . .B 8) -I nf ami l i al hy per chol est er ol emi a, chol est er ol i sdeposi t edi n v ar i oust i ssuesbecauseoft hehi ghconcent r at i onofLDLchol est er ol i nt hepl asma.Ofpar t i cul arconcer ni st heoxi dat i onoft heexcess bl oodLDLt of or m oxi di zedLDL( oxLDL) .TheoxLDLi st akenupby i mmunesy st em cel l scal l edmacr ophages, whi chbecomeengor ged t of or mf oam cel l s.Whi chst at ementbestdescr i best hef or mat i onof f oam cel l s? a)LDLr ecept or sonper i pher al cel l sar eupr egul at ed b)LDLr ecept or sf ormodi f i edLDL( OxLDL)ar enotdownr egul at ed c)LDLent er sbypi nocy t osi st of or mf oam cel l s d)Ther ei si ncr easeddenosy nt hesi sofchol est er ol e)Chol est er ol i snotext r act edf r om macr ophagesbyHDL ANSWER. . .B 9) -Apat i entpr esent swi t hv er yhi ghl ev el sofser um chol est er ol . Af t eraser i esoft est s, i ti sconcl udedt hatt hepat i enthashi gh ci r cul at i ngl ev el sofLDLchol est er ol , buthasnor mal l ev el soft hel i v er LDLr ecept or .Onepossi bl eexpl anat i onf ort hi sobser v at i oni swhi ch oft hef ol l owi ng? a)Thepat i enthasamut at edf or m ofapopr ot ei nB100. b)Thei nabi l i t yt osel ect i v el yr emov echol est er ol f r om t heLDL compl ex. c)Theabsenceoft heenzy mel i popr ot ei nl i pase. d)Decr easedl ev el sofacy l CoA: chol est er ol acy l t r ansf er ase. e)Al t er edphosphor y l at i onoft heLDLr ecept or . ANSWER. . .A 10) -Apat i entpr esent si ny ourof f i cewi t hv er yhi ghl ev el sofser um chol est er ol .Hest at est hathehast r i edt of ol l owt hedi etandexer ci se r egi meny ougav ehi ml asty ear .Youdeci det hatt hi spat i entwoul d benef i tf r om adr ugsuchasLi pi t or( at or v ast at i n) .Thi scl assofdr ugs i sef f ect i v ei nt r eat i nghy per chol est er ol emi abecausei thaswhat ef f ect ? a)St i mul at esphosphor y l at i onoft he hy dr oxy -met hy l gl ut ar y l -CoA r educt aseenzy me b)Decr easest hest abi l i t yoft he hy dr oxy -met hy l gl ut ar y l CoA r educt asepr ot ei n c)Bi ndschol est er ol pr ev ent i ngi tf r om bei ngabsor bedbyt he i nt est i ne d)Di r ect l ypr ev ent st hedeposi t i onofchol est er ol onar t er ywal l s e)I nhi bi t st heenzy me hy dr oxy -met hy l gl ut ar y l CoAr educt ase. ANSWER. . .E 11) -Fr eechol est er ol canaf f ectchol est er ol met abol i sm i nt hebodyby i nhi bi t i ngchol est er ol bi osy nt hesi s.Thest epatwhi chf r eechol est er ol i nhi bi t si t sbi osy nt hesi si sbyi nhi bi t i ngwhi choft hef ol l owi ngpr ocesses? a)Cy cl i zi ngofsqual enet of or ml anost er ol b)Reduct i onof7dehy dr ochol est er ol t of or m chol est er ol c)For mat i onofmev al onat ef r om hy dr oxy met hy l gl ut ar y l CoA d)Ki naset hatphosphor y l at eshy dr oxy met hy l gl ut ar y l CoAr educt ase e)Condensat i onofacet y l CoAandacet oacet y l CoAt of or m hy dr oxy met hy l gl ut ar y l CoA ANSWER. .C 12) -Apat i entwi t hher edi t ar yt y peIhy per l i pi demi apr esent swi t hel ev at ed l ev el sofchy l omi cr onsandVLDLt r i gl y cer i desi nt hebl ood.Themai n f unct i onoft hechy l omi cr onsi nci r cul at i oni st odowhi choft hef ol l owi ng? a)Tr anspor tl i pi dsf r om t hel i v er b)Tr anspor tdi et ar yl i pi dsf r om t hei nt est i net ot ar gett i ssues c)Tr anspor tchol est er ol f r om I DLt oLDL d)Actasar ecept orf ort r i acy l gl y cer ol si nt hel i v er e)Bi ndchol est er ol est er sexcl usi v el y ANSWER. . .B 13) -Themodi f i cat i ont obi l esal t st hati ncr easest hewor ki ngpHr angeand amphi pat hi cnat ur eofbi l esal t si s a)7 Hy dr oxy l at i on b)Dehy dr oxy l at i onbyi nt est i nal bact er i a c)Est er i f i cat i on d)Conj ugat i ont ot aur i neorgl y ci ne e)For mat i onofsal t swi t hsodi um andPot assi um. ANSWER. .D 14) -A53y ear ol dmal epat i entwi t hel ev at edl ev el sofl owdensi t y l i popr ot ei n( LDL)chol est er ol , si gnsofpr emat ur echol est er ol gal l st one di seaseandsubst ant i al l yel ev at edt r i gl y cer i desv i si t edhi sphy si ci anf ora f ol l owupt ocheckhi scur r entst at us.Thepat i enthadr ecei v edv ar i ous st at i n, HMGCoAr educt asei nhi bi t or st her api esf ort hepast2y ear s. Howev er , af t erbl oodwor kdoneatt hi sf ol l owupv i si t , compl i cat i onshad st i l l notsubsi ded.Thi spat i enthassi mi l arpr obl emsast woofhi ssi bl i ngs. Whi choft hef ol l owi ngbestexpl ai nst hi spat i ent sdy sl i pi demi a? a)Ani nf l uxofabnor mal phosphol i pi dsi nt hegal l bl adderasar esul tofi l eal di sease b)Al ossofHMGCoAr educt asef unct i on c)Al ossofCYP7A1( chol est er ol 7-hy dr oxy l ase)f unct i on d)El ev at edl ev el sofACAT e)LessnumberofLDLr ecept or s ANSWER. .C 15) -Apat i enthasbeenoncombi nat i onst at i nandChol est y r ami net her apy t ol owerhi sser um chol est er ol l ev el s.Pr i ort oanysur ger y , t hi spat i ent woul dbewel l adv i sedt obesuppl ement edwi t hwhi choft hef ol l owi ng? a)Vi t ami nA b)Vi t ami nB12 c)Vi t ami nC d)Vi t ami nK e)Li nol eni caci d. ANSWER. .D 17) -A18y ear ol dmal ewi t hsi ckl ecel l anemi adev el opssev er er i ghtupper abdomi nal pai nr adi at i ngt ohi sl owerr i ghtchestandhi sr i ghtf l ank36 hour spr i ort oadmi ssi ont ot heER.Heal sor epor t st hathi sur i nei st he col orofi cedt eaandhi sst ool nowhasal i ghtcl aycol or .Onexami nat i on, hi st emper at ur ei ssl i ght l yel ev at ed, andhear tr at ei sr api d.Hei sexqui si t el y t endert opr essur eov erhi sr i ghtupperabdomen.Thescl er aeofhi sey es ar esl i ght l yy el l owi shi ncol or . Whati st hemostl i kel ycauseoft hi spat i ent ’ ssy mpt oms? a)Achol est er ol r i chgal l st one b)Adef ecti nt hesy nt hesi sofbi l eaci ds c)Adef ecti nhemesy nt hesi s d)Agal l st oner i chi ncal ci um bi l i r ubi nat e e)Asi ckl ecel l cr i si sbr oughtonbyov er exer t i on ANSWER. . .D 18)Whi choft hef ol l owi ngcompoundsdi r ect l yi nhi bi t st heexpr essi onof t heHMGCoAr educt asegene? a)Squal ene b)HMGCoA c)Lanost er ol d)I sopent eny l py r ophosphat e e)Chol est er ol ANSWER. . .E 19)Whi choft hef ol l owi ngv i t ami nscanbeusedi nhi ghdosest ot r eat hy per chol est er ol emi a? a)Ni aci n b)Ri bof l av i n c)Py r i doxi ne d)Fol i caci d e)Thi ami ne. ANSWER. . .A 20)At eenageboypr esent swi t hmoder at et osev er eepi gast r i cpai n. Phy si cal exami nat i onr ev eal sext ensi v eer upt i v exant homasand hepat ospl enomegal y .Abl oodsampl er ev eal smi l kypl asma.Whi choft he f ol l owi ngi st hemostl i kel yl i popr ot ei nt obeel ev at edi nt hi spat i ent‘ s pl asma? a)Chy l omi cr ons b)Chy l omi cr onr emnant s c)HDL d)I DL e)LDL ANSWER. . .A 21)–A25y ear ol df emal ewasr ef er r edt oal i pi dr esear chcent erf or i nv est i gat i onofmoder at ehy per t r i gl y cer i demi abecauset hepl asmal i pi d andl i popr ot ei npr of i l esshowedabnor mal i t i es.Bot hHDLandLDLwer e mor ebuoy antandshowedel ev at i onsi nTGcont entwi t ht hemassofTG appr oxi mat el yt hesameast hatofchol est er ol .Adef i ci encyi nwhi choft he f ol l owi ngi st hemostl i kel ycauseoft hi spat i ent ’ sl i pi dabnor mal i t y ? a)Leci t hi nchol est er ol acy l t r ansf er ase( LCAT) b)Li popr ot ei nl i pase c)Apopr ot ei nCI I d)Hepat i cl i pase e)Apopr ot ei nB100 ANSWER. . .D 22) -Labor at or yr esul t sf orapat i entwi t huncont r ol l edTy peIdi abet es mel l i t usr ev eal hy per gl y cemi a( 634mg/ dL)andhy per t r i gl y cer i demi a( 498 mg/ dL) .Themostl i kel ycauseoft hehy per t r i gl y cer i demi ai nt hi spat i enti s whi choft hef ol l owi ng? a)Def i ci encyi napopr ot ei nCI I b)I ncr easedhepat i ct r i gl y cer i desy nt hesi s c)Decr easedl i popr ot ei nl i paseact i v i t y d)Def i ci encyi nLDLr ecept or s e)Absenceofhor monesensi t i v el i pase ANSWER. . . .C SETTHREE Q. 1-Gl ucosecanbeconv er t edt oGl y cer ol 3Pt hr oughwhi choft he f ol l owi ngi nt er medi at es? a)Gl y cer ol b)Di hy dr ox yacet onephosphat e c)Acet y l coA d)Py r uv at e e)Mal at e. ANSWER. .B Q. 2-Whi choft hef ol l owi ngsuppl i est he2car bonuni t st hatar eaddedt o t heel ongat i onoff at t yaci dchai n? a)Acet y l coA b)Mal ony l coA c) -Ket oacy l coA d)Gl ucose e)Py r uv at e. ANSWER. .B Q. 3Theconv er si onofAcet y l coAt oMal ony l CoAr equi r eswhi choft he f ol l owi ng? a)Bi ot i n b)Adenosi neDi phosphat e( ADP) c)NADPH d)H2O e)Fol i caci d. ANSWER. . .A Q. 4-NADPHi ssy nt hesi zedbyt heact i onofwhi choft hef ol l owi ngenzy mes? a)Gl ucose6Pdehy dr ogenase b)Py r uv at edehy dr ogenase c)Acet y l coAcar boxy l ase d)Li popr ot ei nl i pase e)Gl y cer ol ki nase. ANSWER. . .A Q. 5-A45y ear ol df emal epr esent swi t hsev er eupperabdomi nal pai n, nausea, andv omi t i ng.Shei sdi agnosedwi t hPancr eat i t i s( ani nf l ammat i on oft hepancr eas) . Herser um t r i gl y cer i del ev el i sf oundt obe3000mg/ dl and i sdeemedast hecausef orPancr eat i t i s.Tof or m Tr i acy l gl y cer ol , whi chof t hef ol l owi ngi saddedt odi acy l gl y cer ol ? a)Gl y cer ol b)Gl y cer ol 3Phosphat e c)Fat t yacy l coA d)Acet y l coA e)Succi ny l coA. ANSWER. .C Q. 6-A35y ear ol dmanpr esent swi t hy el l owxant homasonhi sski nand hepat omegal y( enl ar gedl i v er ) .Hi sTr i gl y cer i del ev el i s1500mg/ dl .Hei s di agnosedwi t ht y peVhy per l i pi demi a.Tr i gl y cer i desar epr i mar i l y sy nt hesi zedi nwhi choft hef ol l owi ngt i ssues? a)Skel et al muscl e b)Hear tmuscl e c)Li v er d)Spl een e)Bl oodcel l s. ANSWER. .C Q. 7-An18y ear ol df emal ei sdi agnosedasobese.Shemai nt ai nsa sedent ar yl i f est y l eandeat sahi ghf at , hi ghsugardi et .Mai nt enanceoft hi s di etandl i f est y l ehasl edt ol i pogenesi sandobesi t y .Whi choft hef ol l owi ng af f ect sexcessi v ef at t yaci dsy nt hesi s? a)Gl y cer ol i sobt ai nedt hr oughgl y col y si s b)Fat t yaci dsar eexcessi v el ysy nt hesi zedf r om Acet y l coA c)NADPHi sexcessi v el yobt ai nedf r om HMPpat hway d)Tr i gl y cer i desar eexcessi v el ysy nt hesi zed e)Al l oft heabov e. ANSWER. . .E Q. 8-A30-y ear ol dpr egnantwomanhasasugarcr av i ngandconsumesa hotf udgesundae.Herser um gl ucosel ev el i ncr eases, whi chcauses r el easeofI nsul i n.I nsul i ni sknownt oi ncr easet heact i v i t yofacet y l coA car boxy l ase, t her at el i mi t i ngenzy meoff at t yaci dbi osy nt hesi s.Whi chof t hef ol l owi ngbestdescr i best hi sr egul at or yenzy me? a)I ti sact i v at edbycar boxy l at i on b)I tcat al y zesar eact i ont hatcondensesanacet y l gr oupwi t hmal ony l gr oup c)I tcat al y zesar eact i ont hatr equi r esbi ot i nandATP d)I tconv er t sMal ony l coAt oAcet y l coA e)I ti sact i v at edbymal ony l coA. ANSWER. . .C Q. 9-A16y ear ol df emal epr esent swi t hxant homasonherey el i ds.Shei s f oundt ohav ear ar egenet i cdef i ci encyofl i popr ot ei nl i paseandi s di agnosedwi t ht y pe1hy per l i pi demi a.I nt hi sdi sor derchy l omi cr onsar e abnor mal l yel ev at edi nt heser um.I nwhatt y peofcel l ar et r i acy l gl y cer ol s packagedi nt ochy l omi cr ons? a)I nt est i nal epi t hel i al cel l s b)Li v ercel l c)Muscl ecel l d)Hear tcel l e)Adi posecel l . ANSWER. .A Q. 10-A50y ear ol d, al cohol i cmal epr esent swi t haswol l enf ace, di st ended abdomen, andanenl ar gedf at t yl i v er .Fat t yaci dsr eactwi t hgl y cer ol 3Pt o f or mt r i gl y cer i des, whi chaccumul at et ocausef at t yl i v er .Thel i v erhas gl y cer ol ki nase, whi l eadi poset i ssuel acksgl y cer ol ki nase.Asar esul t , i n adi poset i ssue, whi choft hef ol l owi ngoccur s? a)Gl ucosecannotbeconv er t edt oDHAP b)Gl y cer ol cannotbeconv er t edt oGl y cer ol 3P c)DHAPcannotbeconv er t edt oGl y cer ol 3P d)Di acy l gl y cer ol cannotbeconv er t edt oTr i acy l gl y cer ol e)Tr i acy l gl y cer ol scannotbest or ed. ANSWER. . .B Q. 11-A25y ear ol dmani sbr oughtt ot heemer gencyr oom af t eramot or v ehi cl eacci dent .Hehasadi sl ocat edhi p, r i bf r act ur esandaf aci al l acer at i on.Toxi col ogyscr eenshowsahi ghl ev el ofet hanol i nhi sbl ood. Oxi dat i onofet hanol pr oducesacet al dehy deandNADH.Ahi ghl ev el of NADHr el at i v et oNAD+sl owsTCAcy cl eandpr omot est heconv er si onof whi choft hef ol l owi ngr eact i ons? a)Di hy dr oxyacet onephosphat et ogl y cer ol 3P b)Gl y cer ol 3Pt oDi hy dr oxyacet onephosphat e c)Ci t r at et oi soci t r at e d)Mal at et oOxal oacet at e e)Al l oft heabov e. ANSWER. . . Q. 12-A35y ear ol dwomanpr esent swi t hf l at ul ence, bl oat i ng, and st eat or r hea( f ati nt hest ool ) .Shehadbeeneat i ngl ar geamount sofpot at o chi pst hatwer emadeusi ngOl est r a, af atsubst i t ut e.Nor mal l y , di et ar y t r i acy l gl y cer ol ar ehy dr ol y zedi nt ocomponent st hatar er econst r uct edi nt o t r i acy l gl y cer ol st hatbecomeacomponentofchy l omi cr ons.I nt hei nt est i nal cel l , t hei ni t i al pr ecur sorf orf at t yaci dsy nt hesi si swhi choft hef ol l owi ng? a)Gl y cer ol b)Gl y cer ol 3P c)2Monoacy l gl y cer ol d)Phosphat i di caci d e)Acet y l coA. ANSWER. . .C Q. 13-Thecompl et eoxi dat i onofoddchai nf at t yaci dpr oduceswhi choft he f ol l owi ngs? a)Acet y l coAonl y b)Acet y l coAandPr opi ony l coA c)But y r y l coA d)Pal mi t oy l coA e)Pr opi ony l coAonl y ANSWER. . .B Q. 14-Theact i v at i onofl ongchai nf at t yaci dsr equi r eswhi choft he f ol l owi ngcomponent s? a)2ATP b)2ATPandCoA c)2ATP, CoAandf at t yacy l coA d)Fat t yacy l car ni t i ne e)Car ni t i neacy l t r ansf er aseIandI I . ANSWER. . .B Q. 15-Whi choft hef ol l owi ngst at ement sbestdescr i best he -oxi dat i onof f at t yaci ds? a)OneAcet y l coAi spr oducedi neacht ur noft he -oxi dat i onspi r al b) -oxi dat i onoff at t yaci dsi sanext r ami t ochondr i al pr ocess c)Theenzy mespr esenti nt hef or m ofmul t i enzy mecompl exes d)Thei nt er medi at esar ecar r i edbyAcy l car r i erpr ot ei n e)129ATPar er equi r edf ort hef or mat i onofonemol ofPal mi t i caci d. ANSWER. .A Q. 16- -ox i dat i onofl ongchai nf at t yaci dsoccur spr i mar i l yi nwhi choft he f ol l owi ngl ocat i ons? a)Cy t osol b)Per oxi somes c)Mi t ochondr i a d)Endopl asmi cr et i cul um e)Gol gi appar at us. ANSWER. .C Q. 17-Howmanycar bonsar er emov edf r om f at t yacy l coAi nonet ur nof oxi dat i onspi r al ? a)1 b)2 c)3 d)4 e)6 ANSWER. . .B Q. 18- -ox i dat i onoff at t yaci dsi spr omot edbywhi choft hef ol l owi ngs? a)ATP b)NAD+ c)FADH2 d)Acet y l coA e)Pr opi ony l coA. ANSWER. .B Q. 19-Whati st her ol eofThi ol asei nt he -oxi dat i onoff at t yaci ds? a)Cl eav esofCoA b)Cl eav est hebondbet ween -and -car bons c)AddsH2Oacr osst hedoubl ebond d)Gener at esNADH e)Gener at esFADH2 ANSWER. . .B Q. 20-Whi choft hef ol l owi ngpr oduct si sr el easedi noxi dat i onoff at t y aci ds? a)CoA b)CO2 c)H2O d)Acet y l coA e)Hy dr ogenper oxi de. ANSWER. . . . .B Q. 21-A16y ear ol dext r emel ysl endergi r l pr esent swi t habodywei ghtt hat i s35%bel owexpect ed.Shest i l l f eel sher sel ft obeobeseandsev er el y r est r i ct sherf oodi nt ake.Shei sdi agnosedwi t hAnor exi aNer v osa.I nt hi s pat i ent , duet oi mpr operdi et ar yi nt ake, t hebr eakdownoff at t yaci dsi s r equi r edt opr ov i deener gy .Whi choft hef ol l owi ngsubst ancei sf or medi n t hef i r stst epoft hebet aoxi dat i onoff at t yaci ds? a)ATP b)CoA c)Fat t yacy l coA d)Car ni t i ne e)Mal ony l coA. ANSWER. .C Q. 22-A5y ear ol dboypr esent swi t hal t er edment al st at us, hear tf ai l ur e, andmuscl eweakness.Hi sser um l ev el ofket onesandgl ucosear e abnor mal l yl ow.Hei sdi agnosedwi t hpr i mar ycar ni t i nedef i ci ency .I nwhi ch oft hef ol l owi ngi scar ni t i nedi r ect l yi nv ol v ed? a)Act i v at i onoff at t yaci ds b)Tr anspor toff at t yacy l coA c) Oxi dat i on d) -Oxi dat i on e) -Oxi dat i on. ANSWER. .B Q. 23-A10y ear ol dgi r l pr esent swi t hdi f f i cul twal ki ng, muscl eweakness andal t er edment al st at us.Shei sdi agnosedwi t hcar ni t i neacy l t r ansf er ase def i ci ency .Car ni t i neacy l Tr ansf er aseIcat al y zesar eact i ont hatpr oduces whi choft hef ol l owi ng? a)Fat t yacy l coA b)Fat t yacy l Car ni t i ne c)Fat t yenoy l coA d) -OH-Acy l coA e) -Ket oacy l coA. ANSWER. .C Q. 24-Anobese, 40y ear ol dwoman, whor ecent l yunder wentgast r i c by passsur ger y , pr esent swi t hsev er ev omi t i ngduet or api di nt akeofl ar ge quant i t i esoff ood, whi chmustbeav oi dedaf t ergast r i cby passsur ger y . Shehadsuccessf ul l yl ost10I bov ert hel astmont haf t ert hesur ger ydi et o mobi l i zat i onoff atst or est opr ov i deacet y l coAandener gy .When pal mi t oy l coAi soxi di sed, howmanyAcet y l coAar epr oduced? a) 1 b)10 c)6 d)8 e)4 ANSWER. . .D Q. 25-A16y ear ol dmar at honr unnert r ai nsbyr unni ng15mi l esev er y mor ni ng, r equi r i ngaconst antsuppl yofATP.Appr oxi mat el yHowmany ATPar epr oducedwhenpal mi t oy l coAi soxi di zedt oCO2andH2O? a)100 b)129 c)136 d)96 e)Noneoft heabov e. ANSWER. . .B 1.Whi choft hef ol l owi ngar et heket onebodi es? a)Acet y l coAandPr opi ony l coA b)Leci t hi nandLy sol eci t hi n c)Acet oacet at eandBet ahy dr oxybut y r at e d)Py r uv at eandl act at e e)Succi ny l coAandsucci nat e ANSWER. .C 2.Theenzy me‘ Thi ol ase’ cat al y zest heconv er si onof - a)2Acet y l coAt oAcet oacet y l coA b)Acet y l coAt oMal ony l coA c)Fat t yaci dt oFat t yAcy l coA d)Succi ny l coAt osucci nat e e)Pr opi ony l coAt oD-Met hy l mal ony l coA ANSWER. . .A 3.I ncont r astt osecondar ybi l esal t s, whi choft hef ol l owi ngi s char act er i st i cofpr i mar ybi l esal t s? a)Ar ehy dr oxy l at edatcar bon7 b)Hav eanoxi di zedsi dechai n c)For m coAder i v at i v es d)Canbeconj ugat edt oGl y ci neorTaur i ne e)Ar er eabsor bedi nt hei nt est i ne ANSWER. . .A 4.Whi choft hef ol l owi ngst at ement sbestdescr i best hef at t yaci d sy nt hasecompl ex? a)I sadi merofdi ssi mi l arsubuni t s b)i scomposedof7di f f er entpr ot ei ns c)Di ssoci at esi nt oei ghtdi f f er entpr ot ei ns d)Cat al y zes8di f f er entenzy mat i cst eps e)I scomposedofcov al ent l yl i nkedenzy mes ANSWER. .E 5.Theendpr oductoff at t yaci dsy nt hesi si nmammal si s– a)Ar achi doni caci d b)Li nol ei caci d c)St ear i caci d d)Pal mi t i caci d e)Er uci caci d ANSWER. .D 6.Whi chenzy meof t enmal f unct i onsi ndi seasesassoci at edwi t ht he sy mpt omsofhi ghbl oodt r i gl y cer i del ev el sandSt eat or r hea? a)Phosphol i paseD b)Li popr ot ei nl i pase c)Thi oki nase d)Acet y l coAcar boxy l ase e)Pancr eat i cl i pase ANSWER. . .E 7.Whi chenzy mei sanal l ost er i cr egul at orofanot herenzy meont hel i st? a)Acet y l coAcar boxy l ase b)Pancr eat i cl i pase c)Car ni t i neacy l t r ansf er ase1 d)Acet y l t r ansacy l ase e)Ket oacy l sy nt hase ANSWER. .A 8.Anewbor nhassev er er espi r at or ypr obl ems.Ov ert henextf ewday si ti s obser v edt hatt hebabyhassev er emuscl epr obl ems, demonst r at esl i t t l e dev el opment , andhasneur ol ogi cal pr obl ems.Al i v erbi opsyr ev eal sav er y l owl ev el ofacet y l coAcar boxy l ase, butnor mal l ev el soft heenzy mesof gl y col y si sandgl uconeogenesi s, t heci t r i caci dcy cl e, andt hepent ose phosphat epat hway .Whati st hemostl i kel ycauseofi nf ant ’ sr espi r at or y pr obl ems? a)Lowl ev el ofphosphat i dy l chol i ne b)Bi ot i ndef i ci ency c)Ket oaci dosi s d)Hi ghl ev el ofci t r at e e)Gl y cogendepl et i on ANSWER. .A 9.I ncy st i cf i br osi s, t hepancr eat i cduct sbecomeobst r uct edbyv i scous mucus.Consequent l ydi gest i onofwhi choft hef ol l owi ngsubst ances woul dbemosti mpai r ed? a)St ar ch b)Gl y cogen c)Cel l ul ose d)Li pi ds e)Mal t ose ANSWER. .D 10.I nsul i npr omot eswhi choft hef ol l owi ng? a)Tr anspor tofgl ucosei nt ocel l s b)Conv er si onofTr i acy l gl y cer ol t odi acy l gl y cer ol c)Fat t yaci doxi dat i on d)Decr easedact i v i t yofl i popr ot ei nl i pase e)I ncr easedbl oodgl ucosel ev el ANSWER. .A 11. Di car boxy l i caci dur i ai sadef ectassoci at edwi t hi mpai r ed- a)Al phaoxi dat i onoff at t yaci ds b)Bet aoxi dat i onoff at t yaci ds c)Fat t yaci dsy nt hesi s d)Omegaoxi dat i onoff at t yaci ds e)denov ochol est er ol sy nt hesi s ANSWER. .B 12.I nal phaoxi dat i onwhi choft hef ol l owi ngpr oduct si sr el eased? a)CoA b)CO2 c)H2O d)Acet y l coA e)Mal ony l coA B 13.A2y earol dboyhasbeendi agnosedwi t hZel l wegersy ndr ome, a di sor dercausedbymal f or mat i onofper ox i somes.Theoxi dat i onofwhi ch oft hef ol l owi ngf at t yaci dsi si mpai r edi nt hi sdef ect? a)Pal mi t i caci d b)Unsat ur at edf at t yaci ds c)Ver yl ongchai nf at t yaci ds d)Br anchedhai l f at t yaci ds e)Cy cl i cf at t yaci ds ANSWER. .C 14.A15y ear ol df emal ehasbeendi agnosedwi t hanor exi aner v osa.I nt hi s pat i entbr eakdownoff at t yaci dsi sr equi r edt opr ov i deener gy .Pr i ort of at t y aci doxi dat i onact i v at i onoff at t yaci dt akespl acei nt hecy t osol .Whi chof t hef ol l owi ngi st hepr oductoff at t yaci dact i v at i on? a)ATP b)CoA c)Fat t yacy l CoA d)Car ni t i ne e)Mal ony l coA ANSWER. .C 15.Tangi erdi seasei sadi seaseofchol est er ol t r anspor t .Thef i r stcase wasi dent i f i edi napat i entwhol i v edont hei sl andofTangi erandwhohad char act er i st i cor angecol or edt onsi l s, av er yl owHDLandanenl ar gedl i v er andspl een.Duet omut at i oni nat r anspor tpr ot ei n, chol est er ol cannot pr oper l yexi tt hecel l t obi ndt oapoA.Whi choft hef ol l owi ngi st hemost i mpor t antr i skf act orf orsuchpat i ent sduet odeceasedl ev el ofHDL? a)Di abet esmel l i t us b)At her oscl er osi s c)Cat ar act d)Ket osi s e)Fat t yl i v er ANSWER. .B 16.A40y ear ol dmanpr esent swi t hsev er epai ni nhi sl egsuponwal ki ng. Hei sdi agnosedwi t hat her oscl er ot i cpl aquesi nt hear t er i esofhi sl egs. Hi ghl ev el sofchol est er ol andLDLcont r i but et ot hef or mat i onof at her oscl er osi s.Theoxi di zedf or m ofLDLt r i gger st hepr ocessof at her oscl er osi s.Whi choft hef ol l owi ngi st hemosti mpor t antst r uct ur al componentofLDL? a)ApoB48 b)ApoB100 c)ApoA d)ApoC e)ApoE ANSWER. .B 17.A30y ear ol dmanhasbeendi agnosedwi t hf ami l i al hy per chol est er ol emi a, adi sor dercausedbyadef i ci encyofLDLr ecept or s. Whi choft hef ol l owi ngst at ement sbestdescr i best hest at usoft hese pat i ent s? a)Ser um chol est er ol decr eases b)Excessi v echol est er ol i sr el easedbyHDL c)Chol est er ol sy nt hesi sbyhepat ocy t esi si ncr eased d)NumberofLDLr ecept or sont hesur f aceofhepat ocy t esi ncr ease e)Af t erbi ndi ngt oLDLr ecept or s, LDLi sr api dl ydegr aded ANSWER. .C 18.A25y ear ol dwomanpr esent swi t hal owr edbl oodcel l count , cor neal opaci t i esandki dneyi nsuf f i ci ency .Shei sdi agnosedwi t hLeci t hi n : Chol est er ol acy l t r ansf er ase( LCAT)def i ci ency .Whi choft hef ol l owi ngi s LCATi nv ol v edi n? a)Conv er t i ngchol est er ol t ochol est er y l est er b)Tr ansf erofchol est er ol t oot herl i popr ot ei ns c)Degr adat i onofHDLi nl i v er d)Degr adat i onofchy l omi cr ons e)Decr easedupt akeofchol est er ol byhepat ocy t es ANSWER. .A 19.A34y ear ol df emal ehasbeendi agnosedwi t ht y pe1hy per l i pi demi a. Whi choft hef ol l owi ngl i popr ot ei nconcent r at i oni sel ev at edi nsuch di sor der? a)VLDL b)I DL c)LDL d)Chy l omi cr ons e)Al l oft heabov e ANSWER. . .D 20.Abundanceofwhi choft hef ol l owi ngi nhi bi t sbet aoxi dat i onoff at t y aci ds? a)ATP b)Longchai nf at t yaci ds c)Mal ony l coA d)Ci t r at e e)Acet y l coA ANSWER. .C 1)Whi choft hef ol l owi ngi st hebestmar kerf ort hedi agnosi sofAcut e pancr eat i t i s? a)Lact ase b)Amy l ase c)Chol est er y l est er ase d) -Gl ut amy l t r anspept i dase e)Sucr ase 2)Agal l st onet hatbl ockedt heupperpar toft hebi l eductwoul dcausean – a)I ncr easedf or mat i onofchy l omi cr on b)I ncr easedr ecy cl i ngofbi l esal t s c)I ncr easedexcr et i onofbi l esal t s d)Decr easedexcr et i onoff at si nt hef eces e)I ncompl et el i pi ddi gest i onandabsor pt i on 3)Amol ecul eofPal mi t i caci dat t achedt ocar bon1ofgl y cer ol moi et yofa t r i acy l gl y cer ol i si ngest edanddi gest ed.Whi choft hef ol l owi ngmol ecul ar compl exesi nt hebl oodcar r i est hepal mi t at er esi duef r om t hel umenoft he gutt ot hesur f aceoft hegutepi t hel i al cel l ? a)VLDL b)LDL c)I DL d)HDL e)Bi l esal t 4)Whi choft hef ol l owi ngsuppl i esal l t hecar bonat omst hatar eneededf or denov osy nt hesi sofchol est er ol ? a)Gl ucose b)Acet y l coA c)Mal ony l coA d)Succi ny l coA e)Ci t r at e 5)Whi choft hef ol l owi ngi snotneededf ort hedenov osy nt hesi soff at t y aci ds? a)NADPH b)Acet y l coA c)Bi car bonat e d)ATP e)Fol i caci d 6)Gl y cer ol pr oducedf r om hy dr ol y si soft r i gl y cer i desi nadi poset i ssuei sa wast epr oduct , si ncei thast obei ngl y cer ol 3Pf or m andt heenzy mef or phosphor y l at i on, gl y cer ol ki nasei sabsenti nt headi poset i ssue.Gl y cer ol 3 Pcanst i l l bepr oducedi nt headi poset i ssuet hr oughi nt er conv er si onof oneoft hegl y col y t i ci nt er medi at e.Whi choft hef ol l owi nggl y col y t i c i nt er medi at ecanbeusedf ort hesy nt hesi sofgl y cer ol 3P? a)Phosphoenol py r uv at e b)1, 3Bi sphosphogl y cer at e c)Di hy dr oxy acet onephosphat e d)Fr uct ose1, 6bi sphosphat e e)2, phosphogl y cer at e 7)Whi choft hef ol l owi ngenzy mesi sr equi r edf orr el easi ngt henewl y sy nt hesi zedf at t yaci df r om t hef at t yaci dsy nt hasecompl ex? a)Thi ol ase b)Thi ophor ase c)Thi oest er ase d)Thi oki nase e)Hy dr at ase 8)Whi choft hef ol l owi ngi st hekeyr egul at or yenzy meoff at t yaci d sy nt hesi s? a)ATPci t r at el y ase b)Ket oacy l sy nt hase c)Acet y l t r ansacy l ase d)Acet y l coAcar boxy l ase e)Thi ol ase 9)The“ mi cr osomal sy st em “ el ongat essat ur at edandunsat ur at edf at t y acy l CoAs( f r om C10upwar d)byt wocar bons, usi ng- a)Mal ony l coA b)Acet y l coA c)Succi nat e d)Py r uv at e e)Ci t r at e 10)Whi choft hef ol l owi ngi sabr eakdownpr oductofoddchai nf at t yaci ds? a)Acet y l coAonl y b)Acet y l coAandBut y r y l coA c)Acet y l coAandPr opi ony l coA d)Pr opi ony l coAonl y e)But y r y l coAonl y 11)Li pogenesi si si ncr easedwhensucr osei sf edi nst eadofgl ucose because- a)Sucr osei sdi gest edandabsor bedr api dl y b)Sucr osemet abol i sm causesr el easeofi nsul i n c)Fr uct ose, t hehy dr ol y t i cpr oductact i v at esacet y l coAcar boxy l ase d)Fr uct oseby passest hephosphof r uct oki nasecont r ol poi nti ngl y col y si s andf l oodst hepat hway e)Al l oft heabov e 12)Anobese, 40-y ear ol dwoman, whor ecent l yunder wentgast r i cby pass sur ger y , pr esent swi t hsev er ev omi t i ngduet or api di nt akeofl ar ge quant i t i esoff ood, whi chmustbeav oi dedaf t ergast r i cby passsur ger y . Shehadsuccessf ul l yl ost10poundsov ert hel astmont haf t ert hesur ger y duet omobi l i zat i onoff atst or est opr ov i deacet y l coAandener gy .When St ear i caci di soxi di zed, howmanyAcet y l coAar epr oduced? a)1 b)8 c)9 d)2 e)10 13)A4mont hol di nf antpr esent swi t hasei zur e.Hi smot herr epor t st hat heri nf anthasbeeni r r i t abl eandl et har gi cov ert hepastsev er al day s.The i nf anti sf oundt ohav eapr of oundl yl owser um gl ucoseandket onebody l ev el .Thei nf anti sdi agnosedwi t hmedi um chai nacy l coAdehy dr ogenase def i ci ency .Whati st hebi ochemi cal basi sofi nf ant ’ ssy mpt oms? a)Bet aoxi dat i onoff at t yaci di si mpai r ed b)Fat t yaci dsy nt hesi si si mpai r ed c)Adi pol y si si si nhi bi t ed d)TCAcy cl ei si nhi bi t ed e)Py r uv at et oacet y l coAconv er si oni si nhi bi t ed 14)Whi choft hef ol l owi ngi snotani nt er medi at eofpat hwayofchol est er ol sy nt hesi s? a)Mev al onat e b)Squal ene c)Lanost er ol d)Desmost er ol e)7-dehy dr ochol est er ol 15)A45y ear ol df emal epr esent swi t hpai ni nt her i ghthy pochondr i um r adi at i ngt owar dsshoul derandback.Shei sdi agnosedwi t hacut e chol ecy st i t i s( i nf l ammat i onoft hegal l bl adder ) . Thegal l st onescan obst r uctt hegal l bl adder , l eadi ngt oani nadequat econcent r at i onofbi l e sal t si nt hei nt est i ne.Whi choft hef ol l owi ngst at ement sbestdescr i best he bi l esal t s? a)Squal eneandLanost er ol ar eexampl esofpr i mar ybi l esal t s b)Bi l esal t sar er equi r edf ort r anspor t at i onofl i pi dsf r om i nt est i net ol i v er c)95%oft hebi l esal t sar eex cr et edi nt hef ecesperday d)Theyar er equi r edf ordi gest i onandabsor pt i onofl i pi ds e)Bi l esal t sar esy nt hesi zedf r om gl y ci neandt aur i ne 16)Whi choft hef ol l owi ngapopr ot ei nsi sanact i v at orofLCAT? a)ApoA b)ApoB c)ApoCI I d)ApoA-I e)ApoE 17)I nAbet al i popr ot ei nemi a( ar ar edi sease) , l i popr ot ei nscont ai ni ngapoB ar enotf or medandl i pi ddr opl et saccumul at ei nt hei nt est i neandl i v er . Whi choft hef ol l owi ngl i popr ot ei nsdoesnotcont ai nApoBpr ot ei n? a)LDL b)I DL c)HDL d)Chy l omi cr ons e)Lp( a) 18)Whi choft hef ol l owi ngst at ement sbestdescr i beschol est er ol est er t r ansf erpr ot ei n( CETP) ? a)I tconv er t schol est er ol f r om LDLt ochol est er ol est er s b)I ti st hemaj orpr ot ei nofChy l omi cr ons c)I texchangeschol est er ol est er sf r om HDLf orot herl i pi ds d)I tact sasal i gandf orLDLr ecept or s e)I tt r ansf er schol est er y l est er sf r om per i pher al t i ssuest oHDL 19)Ani nf anti sbor npr emat ur el yat28weeksandhasdev el oped i ncr easi ngdi f f i cul t yi nbr eat hi ng.Hi sski nst ar t st ot ur nbl uef r om l ackof oxy gen( cy anosi s) . Hei sdi agnosedwi t hRespi r at or ydi st r esssy ndr omedue t odef i ci encyofl ungsur f act ant.Whi choft hef ol l owi ngi st hephosphol i pi d ofpr i mar yi mpor t ancei nsur f act ant ? a)Di pal mi t oy l phosphat i dy l chol i ne b)Di pal mi t oy l phosphat i dy l et hanol ami ne c)Di pal mi t oy l phosphogl y cer i de d)Di pal mi t oy l phosphat i dy l I nosi t ol e)Di pal mi t oy l phosphat i dy l ser i ne 20)Amal ei nf anti sbor nwi t hambi guousgeni t al i a( f r om l ackofandr ogens suchast est ost er one)andsev er al sal twast i ng( duet ol ackofal dost er one) . Hei sdi agnosedwi t h3-hy dr oxy l asedef i ci ency .Test ost er onei spr oduced f r om whi choft hef ol l owi ngcompounds? a)Ar achi doni caci d b)Li nol eni caci d c)Gl ucose d)Chol est er ol e)Acet y l coA 21)A20-y ear ol dwomanhasamy ocar di al i nf ar ctandi sgi v enanAspi r i n t ochew.Taki ngaspi r i nhasbeenshownt obecar di opr ot ect i v ei n my ocar di al i nf ar ct i on.Aspi r i ni sanonst er oi dal ant i i nf l ammat or ydr ugt hat i nhi bi t scy cl ooxy genaseenzy me( COX) .Cy cl ooxy genasei sr equi r edf or t hepr oduct i onofwhi choft hese? a) Thr omboxanef r om Ar achi doni caci d b)Leukot r i enesf r om Ar achi doni caci d c)Ar achi doni caci df r om Li nol ei caci d d)Rel easeofAr achi doni caci df r om membr anePhosphol i pi ds e)Hy dr oper oxyei cosat et r aenoi caci d( HPETEs)f r om Ar achi doni caci d! Keyt oanswer s 1)–b 2)–e 3)–e 4)–b 5)–e 6)–c 7)c 8)–d 9)–a 10)–c 11)–d 12)–c 13)–a 14)–e 15)–d 16)–d 17)–c 18)–c 19)–a 20)–d 21)–a 1) -Chol est er ol i sapr ecur sorofal l oft hef ol l owi ngsexcept - a)Taur ochol at e b)Gl y cochol at e c)Cal ci t r i ol d)Cor t i cost er oi ds e)Cal ci t oni n. ANSWER. .E 2) -Al l t he27car bonat omsofchol est er ol ar eder i v edf r om- a)Acet y l coA b)Acet oacet y l coA c)Pr opi ony l coA d)Succi ny l coA e)Mal ony l coA ANSWER. .B 3) -Cy t osol i c3hy dr oxy 3met hy l gl ut ar y l CoA( HMGCoA)i sr educedt o Mev al onat ef ort hesy nt hesi sofchol est er ol , t heenzy mecat al y zi ngt hi s i r r ev er si bl est epi s- a)Thi ol ase b)Thi oest er ase c)Thi ophor ase d)HMGCoAsy nt hase e)HMGCoAr educt ase. ANSWER. .E 4) -Whi choutoft hef ol l owi ngst at ement sbestdescr i besaboutACAT( Acy l coAchol est er ol acy l t r ansf er ase)? a)Requi r edf orr ev er sechol est er ol t r anspor t b)Rat el i mi t i ngenzy mef orbi l eaci dsy nt hesi s c)Requi r esmonounsat ur at edf at t yaci df orest er i f i cat i onofchol est er ol d)Requi r edf ordegr adat i onofchy l omi cr onsandVLDL e)I ti samaj orcomponentofHDL. ANSWER. .C 5) -Whi choutoft hef ol l owi ngst at ement si si ncor r ectaboutbi l esal t s? a)Maj orconst i t uentofbi l e b)Sol ubi l i z edi et ar yl i pi ds c)Maj orbr eakdownpr oduct sofchol est er ol d)Taur ochol at ei st hemaj orbi l esal t . e)Bi l esal t sar ehi ghl yef f ect i v edet er gent s ANSWER. .D 6)–Adef i ci encyofapopr ot ei nCl l r esul t si nt hedi sease hy per l i popr ot ei nemi at y peI , i nwhi cht her ei sasi gni f i canti ncr easei nt he concent r at i onofpl asmat r i acy l gl y cer ol .Whi choft hef ol l owi ngi st r ue aboutt hecondi t i on? a)VLDLandHDLi ncr ease b)Pl asmaappear smi l ky c)Ther ei sar i skf orpr emat ur eI HD d)Ser um t ot al chol est er ol i ncr eases e)ApoCI Iact sasanact i v at orofLCATenzy me. ANSWER. .B 7) -Whi choft hef ol l owi ngl i pi dl ower i ngdr ugsactbyi nhi bi t i ngt he absor pt i onofdi et ar ychol est er ol ? a)St at i ns b)Ezet i mi be c)Col est i pol d)Cl of i br at e e)Chol est y r ami ne ANSWER. .B 8) -I nf ami l i al hy per chol est er ol emi a, chol est er ol i sdeposi t edi nv ar i ous t i ssuesbecauseoft hehi ghconcent r at i onofLDLchol est er ol i nt hepl asma. Ofpar t i cul arconcer ni st heoxi dat i onoft heexcessbl oodLDLt of or m oxi di zedLDL( oxLDL) .TheoxLDLi st akenupbyi mmunesy st em cel l s cal l edmacr ophages, whi chbecomeengor gedt of or mf oam cel l s.Whi ch st at ementbestdescr i best hef or mat i onoff oam cel l s? a)LDLr ecept or sonper i pher al cel l sar eupr egul at ed b)LDLr ecept or sf ormodi f i edLDL( OxLDL)ar enotdownr egul at ed c)LDLent er sbypi nocy t osi st of or mf oam cel l s d)Ther ei si ncr easeddenosy nt hesi sofchol est er ol e)Chol est er ol i snotext r act edf r om macr ophagesbyHDL ANSWER. .B 9) -Apat i entpr esent swi t hv er yhi ghl ev el sofser um chol est er ol .Af t era ser i esoft est s, i ti sconcl udedt hatt hepat i enthashi ghci r cul at i ngl ev el sof LDLchol est er ol , buthasnor mal l ev el soft hel i v erLDLr ecept or .One possi bl eexpl anat i onf ort hi sobser v at i oni swhi choft hef ol l owi ng? a)Thepat i enthasamut at edf or m ofapopr ot ei nB100. b)Thei nabi l i t yt osel ect i v el yr emov echol est er ol f r om t heLDLcompl ex . c)Theabsenceoft heenzy mel i popr ot ei nl i pase. d)Decr easedl ev el sofacy l CoA: chol est er ol acy l t r ansf er ase. e)Al t er edphosphor y l at i onoft heLDLr ecept or . ANSWER. .A 10) -Apat i entpr esent si ny ourof f i cewi t hv er yhi ghl ev el sofser um chol est er ol .Hest at est hathehast r i edt of ol l owt hedi etandexer ci se r egi meny ougav ehi ml asty ear .Youdeci det hatt hi spat i entwoul dbenef i t f r om adr ugsuchasLi pi t or( at or v ast at i n) .Thi scl assofdr ugsi sef f ect i v e i nt r eat i nghy per chol est er ol emi abecausei thaswhatef f ect ? a)St i mul at esphosphor y l at i onoft he hy dr oxy -met hy l gl ut ar y l -CoA r educt aseenzy me b)Decr easest hest abi l i t yoft he hy dr oxy -met hy l gl ut ar y l CoAr educt ase pr ot ei n c)Bi ndschol est er ol pr ev ent i ngi tf r om bei ngabsor bedbyt hei nt est i ne d)Di r ect l ypr ev ent st hedeposi t i onofchol est er ol onar t er ywal l s e)I nhi bi t st heenzy me hy dr oxy -met hy l gl ut ar y l CoAr educt ase. ANSWER. .E 11) -Fr eechol est er ol canaf f ectchol est er ol met abol i sm i nt hebodyby i nhi bi t i ngchol est er ol bi osy nt hesi s.Thest epatwhi chf r eechol est er ol i nhi bi t si t sbi osy nt hesi si sbyi nhi bi t i ngwhi choft hef ol l owi ngpr ocesses? a)Cy cl i zi ngofsqual enet of or ml anost er ol b)Reduct i onof7dehy dr ochol est er ol t of or m chol est er ol c)For mat i onofmev al onat ef r om hy dr oxy met hy l gl ut ar y l CoA d)Ki naset hatphosphor y l at eshy dr oxy met hy l gl ut ar y l CoAr educt ase e)Condensat i onofacet y l CoAandacet oacet y l CoAt of or m hy dr oxy met hy l gl ut ar y l CoA ANSWER. .C 12) -Apat i entwi t hher edi t ar yt y peIhy per l i pi demi apr esent swi t hel ev at ed l ev el sofchy l omi cr onsandVLDLt r i gl y cer i desi nt hebl ood.Themai n f unct i onoft hechy l omi cr onsi nci r cul at i oni st odowhi choft hef ol l owi ng? a)Tr anspor tl i pi dsf r om t hel i v er b)Tr anspor tdi et ar yl i pi dsf r om t hei nt est i net ot ar gett i ssues c)Tr anspor tchol est er ol f r om I DLt oLDL d)Actasar ecept orf ort r i acy l gl y cer ol si nt hel i v er e)Bi ndchol est er ol est er sexcl usi v el y ANSWER. .B 13) -Themodi f i cat i ont obi l esal t st hati ncr easest hewor ki ngpHr angeand amphi pat hi cnat ur eofbi l esal t si s a)7 Hy dr oxy l at i on b)Dehy dr oxy l at i onbyi nt est i nal bact er i a c)Est er i f i cat i on d)Conj ugat i ont ot aur i neorgl y ci ne e)For mat i onofsal t swi t hsodi um andPot assi um. ANSWER. .D 14) -A53y ear ol dmal epat i entwi t hel ev at edl ev el sofl owdensi t y l i popr ot ei n( LDL)chol est er ol , si gnsofpr emat ur echol est er ol gal l st one di seaseandsubst ant i al l yel ev at edt r i gl y cer i desv i si t edhi sphy si ci anf ora f ol l owupt ocheckhi scur r entst at us.Thepat i enthadr ecei v edv ar i ous st at i n, HMGCoAr educt asei nhi bi t or st her api esf ort hepast2y ear s. Howev er , af t erbl oodwor kdoneatt hi sf ol l owupv i si t , compl i cat i onshad st i l l notsubsi ded.Thi spat i enthassi mi l arpr obl emsast woofhi ssi bl i ngs. Whi choft hef ol l owi ngbestexpl ai nst hi spat i ent sdy sl i pi demi a? a)Ani nf l uxofabnor mal phosphol i pi dsi nt hegal l bl adderasar esul tofi l eal di sease b)Al ossofHMGCoAr educt asef unct i on c)Al ossofCYP7A1( chol est er ol 7-hy dr oxy l ase)f unct i on d)El ev at edl ev el sofACAT e)LessnumberofLDLr ecept or s ANSWER. .C 15) -Apat i enthasbeenoncombi nat i onst at i nandChol est y r ami net her apy t ol owerhi sser um chol est er ol l ev el s.Pr i ort oanysur ger y , t hi spat i ent woul dbewel l adv i sedt obesuppl ement edwi t hwhi choft hef ol l owi ng? a)Vi t ami nA b)Vi t ami nB12 c)Vi t ami nC d)Vi t ami nK e)Li nol eni caci d. ANSWER. .D 17) -A18y ear ol dmal ewi t hsi ckl ecel l anemi adev el opssev er er i ghtupper abdomi nal pai nr adi at i ngt ohi sl owerr i ghtchestandhi sr i ghtf l ank36 hour spr i ort oadmi ssi ont ot heER.Heal sor epor t st hathi sur i nei st he col orofi cedt eaandhi sst ool nowhasal i ghtcl aycol or .Onexami nat i on, hi st emper at ur ei ssl i ght l yel ev at ed, andhear tr at ei sr api d.Hei sexqui si t el y t endert opr essur eov erhi sr i ghtupperabdomen.Thescl er aeofhi sey es ar esl i ght l yy el l owi shi ncol or . Whati st hemostl i kel ycauseoft hi spat i ent ’ ssy mpt oms? a)Achol est er ol r i chgal l st one b)Adef ecti nt hesy nt hesi sofbi l eaci ds c)Adef ecti nhemesy nt hesi s d)Agal l st oner i chi ncal ci um bi l i r ubi nat e e)Asi ckl ecel l cr i si sbr oughtonbyov er exer t i on ANSWER. .D 18)Whi choft hef ol l owi ngcompoundsdi r ect l yi nhi bi t st heexpr essi onof t heHMGCoAr educt asegene? a)Squal ene b)HMGCoA c)Lanost er ol d)I sopent eny l py r ophosphat e e)Chol est er ol ANSWER. . .E 19)Whi choft hef ol l owi ngv i t ami nscanbeusedi nhi ghdosest ot r eat hy per chol est er ol emi a? a)Ni aci n b)Ri bof l av i n c)Py r i doxi ne d)Fol i caci d e)Thi ami ne. ANSWER. .A 20)At eenageboypr esent swi t hmoder at et osev er eepi gast r i cpai n. Phy si cal exami nat i onr ev eal sext ensi v eer upt i v exant homasand hepat ospl enomegal y .Abl oodsampl er ev eal smi l kypl asma.Whi choft he f ol l owi ngi st hemostl i kel yl i popr ot ei nt obeel ev at edi nt hi spat i ent‘ s pl asma? a)Chy l omi cr ons b)Chy l omi cr onr emnant s c)HDL d)I DL e)LDL ANSWER. . .A 21)–A25y ear ol df emal ewasr ef er r edt oal i pi dr esear chcent erf or i nv est i gat i onofmoder at ehy per t r i gl y cer i demi abecauset hepl asmal i pi d andl i popr ot ei npr of i l esshowedabnor mal i t i es.Bot hHDLandLDLwer e mor ebuoy antandshowedel ev at i onsi nTGcont entwi t ht hemassofTG appr oxi mat el yt hesameast hatofchol est er ol .Adef i ci encyi nwhi choft he f ol l owi ngi st hemostl i kel ycauseoft hi spat i ent ’ sl i pi dabnor mal i t y ? a)Leci t hi nchol est er ol acy l t r ansf er ase( LCAT) b)Li popr ot ei nl i pase c)Apopr ot ei nCI I d)Hepat i cl i pase e)Apopr ot ei nB100 ANSWER. . .D 22) -Labor at or yr esul t sf orapat i entwi t huncont r ol l edTy peIdi abet es mel l i t usr ev eal hy per gl y cemi a( 634mg/ dL)andhy per t r i gl y cer i demi a( 498 mg/ dL) .Themostl i kel ycauseoft hehy per t r i gl y cer i demi ai nt hi spat i enti s whi choft hef ol l owi ng? a)Def i ci encyi napopr ot ei nCI I b)I ncr easedhepat i ct r i gl y cer i desy nt hesi s c)Decr easedl i popr ot ei nl i paseact i v i t y d)Def i ci encyi nLDLr ecept or s e)Absenceofhor monesensi t i v el i pase Answer . . .C Q. 1–Agal l st onet hatbl ockedt heupperpar toft hebi l eductwoul dcause i ncr easei nwhi choft hef ol l owi ngs? a)Theexcr et i onoff at si nt hef eces b)For mat i onofchy l omi cr ons c)Excr et i onofbi l esal t s d)Conj ugat i onofbi l eaci ds e)Recy cl i ngofbi l esal t s Q. 2-An8y ear ol dboypr esent swi t hor angecol or edt onsi l s, av er yl owHDL l ev el sandanenl ar gedl i v erandspl een.Hei sdi agnosedwi t hTangi er di sease.Tangi erdi seasei sadi seaseofchol est er ol t r anspor t , sucht hat chol est er olcannotpr oper l yexi tt hecel l andf or m HDL.Whi choft he f ol l owi ngst at ement sbestdescr i besHDL? a)I ti spr oducedi nskel et al muscl es b)I tscav engeschol est er ol f r om cel lmembr anes c)I t smaj orpr ot ei ni sapoE d)I ti sf or medwhenVLDLi sact eduponbyl i popr ot ei nl i pase e)I tact i v at esACAT Q3-I ncont r astt osecondar ybi l esal t s, whi choft hef ol l owi ngi snota char act er i st i cofpr i mar ybi l esal t s a)Ar ehy dr oxy l at edatposi t i on17 b)Hav eanoxi di zedsi dechai n c)Canbeconj ugat edt oTaur i neandgl y ci ne d)Ar er eabsor bedi nt hei nt est i ne e)For medf r om chol y l coA. Q. 4I nt heconv er si onofchol est er ol t obi l esal t s, whi choft hef ol l owi ng st at ement sbestdescr i best hepr ocess? a)Car bon8i shy dr oxy l at ed b)Thesi dechai ncanbeconj ugat edwi t hgl y ci neorTaur i ne c)Thedoubl ebondi soxi di zed d)Thehy dr oxy l gr oupat3car bonr emai nsi nt hebet aposi t i on e)I toccur si nt hebi l educt . Q. 5-Whi choft hef ol l owi ngst at ement sbestdescr i besl owdensi t y l i popr ot ei n( LDL)? a)I thast hemostTr i acy l gl y cer ol andt hel eastpr ot ei n b)I thasmor eTr i acy l gl y cer ol t hanv er yl owdensi t yl i popr ot ei n( VLDL) c)I thast hel owestTr i acy l gl y cer ol cont ent d)I thast hehi ghestpr ot ei ncont ent e)I thast hehi ghestchol est er ol cont ent . Q. 6-Whi choft hef ol l owi ngapopr ot ei nsi sanact i v at orofl i popr ot ei nl i pase? a)ApoA b)ApoB c)ApoCI I d)ApoD e)ApoE Q. 7-Whi choft hef ol l owi ngl i popr ot ei nsar et hemaj orcar r i er sofTr i acy l gl y cer ol ? a)I DLandLDL b)VLDLandLDL c)Chy l omi cr onsandVLDL d)HDLandVLDL e)Chy l omi cr onsandHDL. Q. 8-A60y ear ol dwomanpr esent swi t hchestpai nr adi at i ngt oherl ef t ar m.Shei sdi agnosedwi t hMy ocar di al i nf ar ct i onandi spr escr i bedast at i n medi cat i on.St at i nsi nhi bi tHMGCoAr educt ase.Howdoesi nhi bi t i onof HMGCoAr educt asecausel ower i ngofchol est er ol andLDLl ev el s? a)I ti ncr easeser um l ev el ofHDL b)I tdecr easesser um l ev el ofLDLbypr omot i ngcat abol i sm c)I ti nhi bi t st hef or mat i onofLDLf r om I DL d)I ti nhi bi t st her at el i mi t i ngst epi nchol est er ol bi osy nt hesi s e)I ti nhi bi t ssy nt hesi sofLDLr ecept or s. Q. 9)A35y ear ol dwomanpr esent swi t hcr ushi ngsubst er nal chestpai n andshor t nessofbr eat h.Acor onar yar t er yi soccl udedduet oan at her oscl er ot i cpl aque, andshei sdi agnosedwi t hhav i ngmy ocar di al i nf ar ct i on.Herser um chol est er ol l ev el i s700mg/ dl .Thef ami l yhi st or yi s posi t i v ef orhi ghchol est er ol l ev el andsheseemst obehav i ngf ami l i al hy per chol est er ol emi a.Whati st hepossi bl ebi ochemi cal def ecti nt hi s genet i cdi sor der? a)Hi ghact i v i t yofHMGCoAr educt ase b)Lowact i v i t yof7-hy dr oxy l ase c)Abnor mal LDLr ecept or s d)Mor econv er si onofVLDLt oLDL e)Lessconcent r at i onofHDL. Q. 10) -A40-y ear ol dmanpr esent swi t hsev er epai ni nt hel egsupon wal ki ng.Hei sdi agnosedwi t hat her oscl er ot i cpl aquesi nt hear t er i esofhi s l egs.Hi ghl ev el ofchol est er ol andLDLcont r i but et ot hef or mat i onof at her oscl er osi s.Whi choft hef ol l owi ngi sdi gest edt of or m LDL? a)I DL b)Chy l omi cr ons c)HDL d)Chol est er y l est er s e)Chol est er ol . Q. 11-A23y ear ol df emal epr esent swi t hl owr edbl oodcel l count , cor neal opaci t i esandki dneyi nsuf f i ci ency .Shei sdi agnosedwi t hl eci t hi n: chol est er ol acy l t r ansf er ase( LCAT)def i ci ency .I nwhi choft hef ol l owi ng r eact i onsLCATi si nv ol v ed? a)Tr ansf erofchol est er ol est er sf r om HDLt oVLDL b)Hy dr ol y si sofHDL c)Upt akeofchol est er ol f r om l i v ercel l s d)Conv er t i ngchol est er ol t oChol est er y l est er s e)Pr omot i ngupt akeofHDLi nt ol i v ercel l s Q. 12-Whi choft hef ol l owi ngsi snotahy pol i pi demi cdr ug? a)St at i n b)Ni aci n c)Fol i caci d d)Cl of i br at e e)Ezet i mi be. Q. 13-Thesy nt hesi sofHMGCoAcant akepl ace- a)onl yi nmi t ochondr i a b)Onl yi ncy t opl asm ofal lnucl eat edmammal i ancel l s c)I nt heendopl asmi cr et i cul um ofal l mammal i ancel l s d)I nt hel y sosomes e)I nbot hcy t osol andmi t ochondr i a. Q. 14-Whi choft hef ol l owi ngbestdescr i best her ol eofchol est er ol est er t r ansf erpr ot ei n( CETP)? a)I tconv er t schol est er ol f r om LDLt ochol est er ol est er s b)I ti st hemaj orpr ot ei nofHDL c)I texchangeschol est er ol est er sf r om HDLt oot herl i popr ot ei ns d)I tact sasal i gandf orhepat i cr ecept or sofHDL e)I ti sanact i v at orofLCAT. Q. 15-Whi choft hef ol l owi ngsar enotl i pot r opi cagent s? a)Essent i alami noaci ds b)Essent i al f at t yaci ds c)Vi t ami nA, CandE d)Bi ot i nandPant ot heni caci d e)Sy nt het i cant i oxi dant s Keyt oAnswer s- 1) -a, 2) b, 3) a, 10) a, 11) d, 12) c 13) b, 14) c, 15) d. 4) b, 5) e, 6) c, 7) c, 8) d, 9) c,