BiologyPracticeFinalC
Name:
1) Which of the followingis closestto the pH of blood?
a) 4.8
b) 6.7
@ r.t
d) 10.8
2l Thepolarnatureof watermolecules
is causedby the
'a) abilityto actasa solvent
b) cohesiveness
amongmolecules
sharingof electrons
withina molecule
@ unequal
d) the potentialtoform hydrogen
bondswith neighboring
watermolecules
3)
a)
p
-el
d)
reaction?
Whichof the followingBEST
describes
a dehydrolysis
aminoacidstakingup excess
hydrogen
ions
andremoving
water
)oininemonosaccharides
formingwaterby combining
an acidanda base
addingwaterto breaka polypeptide
intoaminoacids
4) Whichof the followingis NOTa polysacchraide?
a) Starch
€. c[cerot
c) Cellulose
d) Glycogen
5) Whichof the followingBEST
describes
the "bonds"holdingwatermolecutes
together?
lonic
a)
(6p Covalent
Jf Rdhesion
d) Hydrogen
5) Whena portionof a molecule
attractsandreceives
electrons
fromthe restof the molecule,
it gainsa
pH
a) low
b) highpH
@ -dipole
d) + dipole
7) An alphahelixbentandfoldedintoa 3Dshaperepresents
a
a) primarystructure
b) secondary
structure
GD tertiarystructure
d) quaternary
structure
in cellswouldMOSTlikelyaffectthe
that preventATPproduction
8) Inhibitors
a) ribosomes
@ mitocfrondria
c) Golgiapparatus
reticulum
d) roughendoplasmic
9)
a)
fO
\f
il)
wouldNOTlikelybe ableto produce
Cellslackingribosomes
vesicles
^nvproteins
steroidhormones
for secretion
enzymes
areMOSTlikelyproducedby the
10)Vesicles
that fusewith the cellmembrane
a) ribosomes
Q)-7colgiapparatus
membrane
c) nuclear
d ) ER
produced?
11)Wherein a cellaresteroids
a) Nucleus
b) Cytoplasm
c) RER
@sn
12) Whichof the followingis FALSE?
coulddestroya cell
a) Thecontentsof a lysosome
areafor cellproducts
is a packaging
b) TheGolgiapparatus
production
of proteins
anddistribution
with the
c) RERis associated
(dj] wh"n RERlosesits ribosomes,
steroidhormones
it beginsto manufacture
v
13)
eegw* *f*k
Sf&info
n# F{rft i* @s#fni:i#{[w*&
1
'*.
d*
i#kXsr
*##t*M
M!ffiff*
S$mmfumx
.s.,
(f,/ ?"1,3
W- r-2"3
#, ?=p-*
s" La}
1-4)A polymerof nucleicacid is found in the cytoplasmof a livinganimalcell.Which of the followingis
MOSTlikelytrue about this molecule?
a) Helical
fi) containsribose
stranded
:t Double
thymine
d) Contains
29%A in its DNA,whatisthe percentage
14) lf a species
contains
of guanineit wouldcontain?
a) 29%
b) 58To
c) 42%
-,:-l
(9/ zLo/o
is NOTcorrect?
15)Whichof the followingstatements
aboutDNAreplication
replication
is DNApolymerase
a) Theenzymethat catalyzes
DNA
molecule
occurs
bondsbreak
ashydrogen
Unzipping
of
the
!\
paired
with anotherexactlylikeit
occursaseachbaseis
(t)/ Replication
-6) Theprocess
is knownassemi-conservative
because
oneold strandis conserved
in the new
molecule
wasmutatedfromAGAGAGAGAGAGAGAGAG
15)Suppose
the followingDNAsequence
to
AGAAGAGAGAGATCGAGAG.
Whataminoacidsequence
couldbe generated
basedon thismutated
DNA?
--\ ser-seAeu
(a)/
b) ser-leu-ser-leu-ser-leu
c) glu-arg-glu-leu-leu-leu
d) leu-phe-arg-glu-glu-glu
17) Howmanycodonsarerequiredto codefor a singleaminoacid?
,\1
a)3
c) 20
d) 64
18) Nucleic
Acidsarecomposed
of chainsof
genes
a)
Purines
\
(r)/ nucleotides
--d) pyrimidines
resulting
fromthe replication
of DNA
19)Thetwo molecules
a) differin termsof functiononly
b) differbecause
oneis old andoneis new
in
everyregardunlessa mutationhasoccurred
same
d
t4l
^r"the
onecontainsriboseandonecontains
deoryribose
differbecause
arethreestagesin
20) Initiation,
elongation,
andtermination
A DNAreplication
(b)i polypeptide
synthesis
of cancer
V development
d) codon-anticodonformation
mechanisms
doesNOTobeythe lawsof diffusion?
21) Whichof the followingtransportation
a) Osmosis
b) Diffusion
@1 AAivetransport
d) Facilitatedtransport
22) Thedifferencein soluteconcentration
betweentwo areas/regions
is called
a) hypotonic
b) hypertonic
A absolutedifference
gradient
( dl.) concentration
23) Which of the followingis an exampleof endocytosis?
a) The effect of diffusion
Theactivityof transportproteins
Theactivityof secretoryvesicles
Theformationof vesicles
by the cellmembrane
24) Duringthisexperiment,
the waterlevelon sideA will
in its proteinconcentration
a decrease
a) lowerdueto the lossof watercausing
in itsproteinconcentration
a increase
b) lowerdueto the lossof watercausing
its proteinconcentration
)4ise dueto watermovingto that sidethusincreasing
its proteinconcentration
dueto watermovingto that sidethusdecreasing
(9/rit"
substrate
25) An enzyme's
abilityto "recognize"
the appropriate
is basedon
a) mass
.6? shaoe
c_/
i) reactivity
d) glycoproteinson their surface
26) Which of the followingis TRUEabout a metabolicpathway
a) ATPis requiredat eachstep
b) Afinal end productis neverproduced
cl Thesameenzymeis usedeachstepin the pathway
productsbecomethe nextsubstrates
A) tn"
Wue**r.W**,
*x-
+
ry
W
Y
*r*e
*
#
ryrct*r*i*
li
ff;
27)Whichletterrefersto theenzyme
in thisreaction?
a) v
9\W
&l/ x
d) Y
28) Consider
andselectthe BEST
the followingstatements
orderfor an enzyme-catalyzed
reaction
g Y&xs$nmu&sn&w*ffisffiffi:tb
'
=" W*ffitw*sM@Aed"
S, ?hEs&lwffi Fffi m M*wfr
*" Y* ffi3$ffi
a)
e kxffifuEL
&*w&*sffifi*&-q*
*#&#,frGtr-ffi
L,4,3,2
A) 2, L, 3, 4
fo) 4,L,3, 2
d ) 4, 2 , 3 , L
29) Whichof the followingis NOTTRUEfor enzymes?
a) Theyareproducedby cells
b) Theycanbe destroyed
by hightemperatures
react
when
insidecells
ffrey
can
only
ft)
generally
Theyare
considered
to be proteins
-t
zSP
vffi
,€*&*6
stepI
s*eVZ
*trf S
30) At whichstep(s)in this reactionsequence
areco-enzymes
andco-factors
the MOSTinvolved?
1
a) Steo
ff
stepz
Af steps
d) Step1 or 2, but not Step3
31) Whichof the followingpancreatic
secretions
doesn'tenterthe duodenum?
j) lnsulin
bf upas"
c) Trypsin
d) Bicarbonate
ions
in the cellswhichlinethe smallintestineallowit to
of largenumbersof mitochondria
32) Thepresence
a) engulffats
b) digestproteins
@ absorbglucose
vitamins
Yf synthesize
isto preventmovementof acidchymefromthe
33) A functionof the cardiacsphincter
mouth
to
the
esophagus
A
Q)/ stomachto the esophagus
to the stomach
c) duodenum
'd) colonto the smallintestines
34)Whichof the followingprotectsthe stomachfrom HCI?
a) Bile
ions
b) Bicarbonate
Mucus
@
d) Pepsin
juicewasaddedto a choppedup deluxehamburger
andallowedto soakfor 24 hours,
35) lf pancreatic
present?
would
MOST
likely
be
,,whichof the following
glycero!and maltose
1:)/ fany acids,polypeptides,
andfattyacids
6l Aminoacids,glucose,
polypeptides
c) Monosaccharidesand
glucose
andaminoacids
d) Nucleotides,
systemwasfoundto containboth
36)A sampling
of the materialfromone regionof the digestive
Whichregionwasthe sampletakenfrom?
maltaseandpeptidases.
a) lleum
b) Stomach
c) Pancreas
16) Duodenum
\)
a malfunctioning
of foodin the tracheaindicates
37) Thepresence
a) pharynx
esophagus
q
rl,
epiglottis
(
-Z) cardiacsphincter
38) In whichset of digestiveorgansdoesphysicaldigestionoccur?
a) MouthandStomach
b) Mouthandsmallintestine
^l
Stomach
andsmallintestine
tr)
Mouth,stomachandsmallintestine
\J/
39) Excess
fluidremaining
in tissuespaces
will be
a) Usedto form urine
b)-Removedin the formof sweat
Drainedawayby the lymphaticsystem
$
d) Movedbackintothe capillary
bedat a latertime
40) Whenthe AVvalvesareopenedandthe bloodis movingthroughthem,
a) Boththe atriaandventricles
arerelaxing
b) Boththe atriaandventricles
arecontracting
fn"
atria
are
contracting
and
the ventricles
arerelaxing
@
dJ Theatriaarerelaxing
andthe ventricles
arecontracting
jl) Whichof the followingpairsareneededto fightinfection?
GJ|/ WBCand proteins
b) Platelets
andproteins
c) RBCandWBC
d) RBCandPlatelets
42) Whichbloodvessels
transportdeorygenated
blood?
a) Umbilical
veinandpulmonary
veins
b) Umbilical
veinandpulmonary
arteries
pulmonary
veins
arteriesand
9\ Umbilical
(d)/ Umbilical
arteriesandpulmonary
arteries
43) Whatvalveopenswhenthe heartchamberproducing
the highestbloodpressure
contracts?
n"
aortic
semilunar
valve
fr|
%i Thepulmonary
valve
semilunar
c) TherightAVvalve
d) Theleft AVvalve
441ln whichof the followingvessels
areglucose
levelsthe TEAST
variable?
a) Renalartery
b) Hepaticportalvein
vein
@ Hepatic
d) Pulmonaryvein
45) Agglutination
is differentfromclottingbecause
a) it occursin plasma
proteinsandcells
9l it involves
it
is
a
function
of the immunesystem
/cl
"dl it causes
cellsto clustertogether
46) Whichof the followingsequences
correctlydescribes
the passage
of air out the body?
a) Pharynx,
larynx,trachea,bronchioles,
alveoli,bronchi
b) Pharynx,
larynx,trachea,bronchi,bronchioles,
alveoli
h
Pharynx,
trachea,bronchi,larynx,bronchioles,
alveoli
Alveoli,bronchioles,
bronchi,
trachea,larynx,Pharynx
get converted
to HHb?
47) WheredoesHBOz
a) Livercells
@ rissuecapillaries
c) Heartventricles
d) Lungcapillaries
48) In whichof the followinglocations
doesbloodhavethe highestconcentration
of HSz?
veins
a) Systemic
b) Pulmonaryveins
Systemicarteries
@
'd) Pulmonarycapillaries
is MOSTcloselyassociated
with whichof the following
49) Therelease
of oxygenfrom hemoglobin
conditions?
pH
a) lncreased
bodytemperature
b) Decreased
c) Highamountsof oxygenin tissue
COzconcentration
4p Increased
s0)Thepartof a sensoryneuronMOSTlikelydamagedif youcut yourarmisthe
a ) axon
b) effector
dendrite
cellbody.
q,
throughthe useof
51) Someexternalstimulicauseimmediateresponses
a) manyinterneurons
b) sensoryneuronsto the brain
1Q simplifiedpathwayscalledreflexarcs
alongthe spinalcord.
-d) rapidtransmission
at pointP anda nerveimpulseis generated
52) Whenthe axonof neuron#2 isstimulated
in both
from
thisimpulsecanonlybe transmitted
directions,
a) neuron2 to neuron1 by the movementof ions
b) neuron2 to neuron3 by the movementof ions
of neurotransmitters
9\ neuron2 to neuron1 by the release
of neurotransmitters.
n"rron 2 to neuron3 by the release
Q))
whichof the followingconditions
existsinsidethe neuron?
) Duringthe restingpotential,
Excess
K1*
b) Excess
Na1*
c) dendrite
d) Equalconcentrations
of Na1*andK1*.
61
54)Theautonomic
nervoussystemincludes
the
a) brainandspinalcord
b) somaticnervoussystem
c) cerebellum
andthe medullaoblongata
sympathetic
andparasympathetic
divisions.
4tf)
ss) Thesketchshowsthe neuralpathwaybetweenthe foot andthe
brain.lf damageoccursat locationX,the person
a) wouldno longerbe ableto feelpainor movethe foot
b) wouldstillbe ableto movethe foot andfeelpainin it
@
wouldbe ableto feelpainin the foot,but not be ableto moveit
d) wouldbe ableto movethe foot,but no longerbeableto feelpain
in it.
55) Whichof the followingcanbefoundin plasmaandurine,but NOTin the glomerular
filtrate?
a) Urea
b) Glucose
Histamines
Q
d)" Inorganic
salts
s7l Whichof the followingis a correctfunctionof the peritubular
capitf
arybedassociated
with a single
nephron?
a) Filtering
of blood
of nutrients
@ Reabsorption
c) Transport
of bloodto the liver
d) Gathering
wastesfor excretion
s8)In whichkidneyregionarethe majorityof the loopof Henlefound?
a) Renalvein
b) Renalpelvis
c) Renalcortex
o
Re n a lmedulla
59) In which bloodvesselof the kidneycan the highestconcentrationof metabolicwastesfound?
a) Renalvein
6D nenalartery
c) Efferentarteriole
d) Peritubular
capillary
bed
)
QQ)Whichpartof a nephronis MOSTaffectedby aldosterone?
tooPof Henle
}(
b)- Collecting
duct
Distalconvoluted
tubule
A
convoluted
tubule.
d) Proximal
howan ovumentersan oviductonceovulationoccurs?
describes
61) Whichof the followingBEST
a) lt swims
b) Peristalsis
€l lt is drawnin the actionof fimbriaeandcilia
d) lt is propelledbythe forceof the burstingfollicle
andoogenesis
differin that
62) Spermatogensis
is muchmorevariablethanthat of oogenesis
a) the rateof spermatogenesis
beginsat pubefi
beginsbeforebirthandoogenesis
b) spermatogenesis
promotes
c) estrogenpromotesoogenesis
and progesterone
spermatogeneis
produces
gametewherespermatogenesis
produces
onefunctional
oogenesis
more
{l/
that is released
duringmenstruation?
53) Whatisthe sourceof the discharge
a) Cervix
b) Vagina
c) Oviduct
{t} Endometrium
64) Whichof the followingproducestestosterone?
a) Spermcells
b) Hypothalamus
(i} Interstitialcells
\z
d) Anteriorpituitary
that
65) Thepresence
of HCGin a woman'surineindicates
a) shehasjustovulated
is aboutto begin
b) menstruation
her
levels
of
estrogen
aredecreasing
9\
imRlantation
of an embryohasoccurred
@)
Q6)Whichof the followingdoesNOTcontributeto the fluidsthat makeup seminalfluid?
fi) testes
Y Prostate
glands
c) Cowper's
d) Seminalvesicles
gonadotropin
(HCG)
is differentfromothergonadotropins
67) Humanchorionic
because
it doesNOT
a) enterthe bloodstream.
b) stimulateanytissuein the body
pituitary
Q comefromthe anterior
d) acton the ovariesor the corpusluteum
68) Fillin the Blanks
a) Lysosomes
C
b) Mitochondria
c) Golgiapparatus
d) RER
(-fv1t^
/_
+
h) Nucteus
c) Glucose
d) Cellulose
ii)
e)
SaturatedFattyAcid
iii)
0
Glycerol
g)
Amino Acid
v)
A
IIHHHHHHHH
{
it *
tli
':..
-l 'i 'l 'i 'j{
\-6-d-i-t -d-i-i-*-i-*
Hg =
Oryg*. C -Gerbon, ff = &drueca
h) Nucleotide
vi)
i)
RNA
#,iffi*r
I
lr)
.flonr^(
?uootan^
q-/
J /;u,-t
pul-rqg Adu
$r r vuvt
Mrsfu
R * Af{utk A'{<rrclc
s-
GIo^w(o(
TJ
Boa^6'g C6g5,t(7
U
V,
N
Y.J
ln X;ttrJ QiurtukJJ$ult
Lw(# llrntt
f eir Lriut^r 6yfll^rttl
O;sl^l (,nvs[r[oJAu6'tz
dulr
Y* GIW{y^,
\J
Ynfry4z
1W^^,,,
?it^rr^t
jt{mc
$trudure
T
Fnbuz
0v;/ucL-r
U
Y
0wrt
Ul+ru -r
lt'
x
E"d^ilnlq
Y
L
{oo ,'n
(crwtY
Functisn
Arr;(l wih aunt"ln y!p-*W!{t
L^d,rl o{p h ,l<rv-(
(c .-.,v&
, Pn*P'4"tru( d,
^J
f ,*r*in nJ tibrh*'t dt'vtl{tqat
friC\ur lae nria'ir.?run
S tomYcf $Tnc Fra^
Vm^-.i^f
u
70) Examinethe diagrambelow and completethe associatedtable (3) '
Itimn
$hudurt
,{
t, t ;{ //.,1n\_/ Tean k^.
.t,
B
t
$unrtim
/tonr 7^t h n,!"u
luL'l+ Splr'rlnfolaslr
Srn;'t:lrrn1
trodv
ct-"* tLr<*
Tql'hh,l
ailr
71) Matcht$xtructures to their correctfunctions
a) mitqfidndria
i) FormLysosomes
,, y/
ii) MakeProteins
., eovft,"r,,
iii)Sperrnatogenesis
t
d)'ri^
iv)storebile
vLln,f
e) "liuer
v) intercellular
transport
I
vi) Supplythe kidneys
with blood
yr kdJrr
s) +ungl
vii)storeandbreakdownfood
h) ,tbfk
viii)storesurine
'l sen,iYtubules
ix)Cellularrespiration
4
n
x)develop
ovum
^/,on*n
+
A
labelled
V, X,Y andZ(21
a) Namethe structures
v- J<YilrruYJl,ttc
X
''/,- g' vd^ Lu[u'^
- forlut
?' ov'{\
isoccuriingat X?(1)
b) Whate-vent
flVtrl^f;zn
"'r^k:"";,i;l
#v1
;"ii;" y !'c 6vap*i
6a(tr N; ;/;;;,:i,: #"+" lh,,rl*w]t-ryt*',/,,
''d' +'*w '
i'*[r-r,i dr'tui,
73) Whathappens
at the distalconvoluted
tubuleduringthe process
of urineformation?(2)
g( tLL
prepares
the bodyto respondto emergency
74) Give3 waysthat the increased
stimulation
situations
(3)
-* Conkn(l- r^vrfrtr
?up,l Jil *<
rt" wrrl(
--Jfu',f.t"0'.3
- b[t*J s4];"Ann
s
? llt,./ R*o
diaphragm,
75) Describe
the interaction
of the medullaoblongata,
muscles
of the ribcage,pleural
(3)
membranes
andlungsduringinhalation.
-mIt
} sllr
-- t ';1"
i'n v'bl'J,
lnr-Julln
OU,Or.1y'+r s{as..ftn, nLdv'tt
F Au6\"t!
T0
r^4(6 rvr
t/ht",
,A^ TW(
;
-;^'4t'rc^rh,l
lLr
./LT,*
'{ag(f
iri^,, i, ltt ,f
,*w/ts h c^]t4l-rt-t
i
l
jri.
.fLt
,tp *wd
uy+.fu
an1l.
qN* fLt Jrqku,n'{rui
*d ,rn.ftt'
fir
io cteL
cteLrp
crqL
i; it
Jrnlku^l{rri ilil it
Jrr,gria
n,rtt#
\Nf,f,,
'
,*
(;L ,nq 4t;
.c lt,rftl
o,'t 6iavS
w
+,
,l
"i
,I^l+YLtl
,t^+HAol
t,
,ittnrl:,':y6nri
^,!"
^/
^
yu*ton
,{1^c {^,1f
,Sf,, txyady
fu"*.
t
xir J" bt dn,n /h
tfiii $.y*sn,rcutt(
76) Whatisthe circulatorypignificance
of a baby'sfirstbreath?(2)
-tTt t-x1*l d Jr.r,^{1
of titnt /"^0 \d^J '1"F{o',1 .
pl^^!
Bl*J ^.tuttro,vd(*t$+t
^frx
fq^ l^h;^, llr.
77) ldentifuandexplainONErelationship
betweenfibrinogen
andbloodclotting(*
€rbrnoflrn ' bcnncr F,bn* JtrlL i\r 'hrotubte l^ [[,oJpfrt**
a^J lLct Lr{s,
78) Usethe followingdiagramof a capillarybed in lungtissueto answerthe followingquestion:
z
-g
Contrast
the eventsthat occurat position2 with the eventsoccyrring
at position3 (2)
+t
> C0, ;
-
++
t
mLr;alcNt o'*
. t ,,r^rLt
Yv
u> rvd
r)
rtoul rV
glandandan exocrine
gland,Explain
79) Thepancreas
in knownasan endocrine
the diffneren*.
dt
Nr(rfqc
ya2-r^(
turCr^tqC
,{;ffo,r , {O^ 1)ocr,v,g N^ +LY
V'e.s r{nu^
Maut
^"d ttOcfihl
,i^{o ,
aa,l- r^+u bt ooJfkat""' '
(2)
TWOwaysthat the smallintestineis wellspecialized
for absorptionr
80) Describe
.f + ;r uof, ,*0 , 5- Cf"+t,f s+) fo fur, )( l*"'f Afxn7
A j
gll;
;\dzh/"u v(rtttd
t4,
F
(2 marks)
two waysin whichthe rateof productionof productF canbe decreased.
81) Describe
Dues*t W J Vq
- I^htltlfE,q
- I n(rcvt t, ( h * krrt, ef$
in a cell'senvironment.llmarks)
the soluteconcentfation
the effectof decreasing
82) Describe
golntc *6rl{ n&w fli*' o? c+l/ {
g7P,r
^NL
A^{- ailf'
(3 marks)
fuqctions?
83) Whatarethe threetypesof RNAandwhataretheirspecific
nccr\L ht
n. Lfrlt\t h,y
caltr hr
Nw
atid'r
Y
,rV* r,4' riboro,",'e
mK
rt;y
rRNA
riLorat('
tt
%"
0d
/*'t,.r
{hc
tKNn- (rcrrtr
enzyme.UseyourGeneticCodesheetto
84)ThefollowingDNAstrandwill be usedto makea particular
(3 marks)
determinethe aminoacidsattachedto eachtRNAmolecule.
DNA:
TAC -
GCG
GGT
mRNA: AUk- CkC- CC*IRNA:
t f+( r f,-cc- P&U -
acid: 1v.l',t- zrrg
amino
f r0
ATT
TAG
ATT
vA+- Au( - U44
A"
thp
U*$'- ftvtt
85) An experimentdesignedto measurethe effectof pH on enzymeactivitywasconductedusingthe
followingsteps:
peroxide(HzOz)
i) An equalvolumeof hydrogen
wasaddedto 8 numbered
testtubesat 20oC
ii) Thecontentsof eachtest tube were maintainedat a differentpH
iii)An equalmassof liverwasaddedto eachtesttube
whichcatalyzes
Livercontains
the enzymecatalase,
the followingreaction
?HzOz+ CATALASE
ZHzO+ Oz
Thetime requiredto collect10 mLof oxygengas(Oz)fromeachtesttubewasmeasured
andrecorde
asshownin the tablebelow.
fflm*uf#*il*ryf
t{hftLrl0r tl+q-sdq}
Y**tTubr plI*f$Sxt**x
*
{
*H
T
f
*g
*
?
#4
s
5
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a) Draw and labela graphthat comparesthe time tq collect10 m! of O2 producesto the pH of the
(3)
solution.
1wt
+. goft"t&
lS^L of q
LGA
tt6
It6
+r^/
f;\
d t0
lA
g0
10
q
lo r
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b) Useyourgraphto estimate
the time it Vtrould
taketo collect10 mLof 02 at a pHof 9.5(1)
5Cr
c) Explain
whatcauses
the resultsobserved
betweenpH8 andpH 12 (1)
t+ h,,. ,nW
Da,lunuS
functiontogether.(1 each)
86)StateONEwayin whichthe followingpairsof cellstructures
duodenum
a) gallbladderand
.ilo,
J- a,^uln^$
tf, UtAJr rLftst' fu'lt ,v^l: du6J,-^,,c) liverandhepaticvein
| ;wr nc5urtrb(-"J b,,h,,U\
h, hq.lrvr-,\
87) Contrasteachof the followingin ONEway. (1 each)
a) RBCvs WBC
\, *{u
n
f,,icolcr'"e
a) spermvsovum
(\ * Q
(*
t"Yltu'^
Q[-,
t,^rrltu*
L,
andtransporting
eLJ!'
of dissolving
a salt.(2)
ev'Descrr'ibe
8S)
""wate/s rolein the processes
W;;7"'"'J::pd;-'',nurr, oM i;""i;:"&';nt
'-.;
:';
oF;Ir,ltSt , ,('+^
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arao"J
& ryDt
+)** ,* ,rl'LP'i
f hdI rr.trrvt f* fr*r1r/'
(3)
for threeof the four majormacromolecules.
ldentifythe unitmolecule
L:p;J{
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Grbo hf ,fits fqo(toracc/',{r
/\
,t
/ rottt*
,nnnM-A t
vtntva
^
(r[uda c *0,{ -
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ltltlto{;J'
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