2008 Unit 1:200S'Rest IZOR
of Region
'
I.
:"' . . q,-.·;:1'·'~':"(:.~-~~- .. .:
- _,. •· -...
~-
\Vh!ch Bribe ro: iliw~ iiJ~d~ i)6ftj;~~lt i.~' · '
,
' - --~ :
to
i
Covaler:c
Hydrog•;u
(C)
lonk
( [l)
Hydupklic
2
I
N
I / "u
en,-<::.· u,-c-c,_
.
I ~
H
II
cu
II
th~
structure oc'
Sllll';h.
Bcitr c<Jnbibute to tl1e strncluI': o;·
celb!oO:e.
.
l ~O;ltri bUes lo the structur~ oi
celluLise, ·II contributes to th<;
structure 'of starch.
or
I contrib\ites
. to . the structure
'
sta<ch, II contributes to tit•)
3
ofcC::llulose.
I
Ii
-c~-c
o
0
/ .,..'..
n
~
Ni
O
Which of the 'following is the mo!cc,1k
represented by.the structure?
(A)
(B)
(C)
(D)
'
Which of th0' foilowmg s6teiPents is true
i.bout BOTH isolners?
Boli• c<calribute to
'
N
~
;( "-11
4.
struct\ire
",-
\_j.;
. HO--CH-C- C/
I
(D)
'
ll
(B)
\I\)
~
refers 10 the following chen" '"
sl!\icture of amoli:culc.
!Lem 2 refers to the slluctures below whicli
show rwo isomers iJf glucose.
2.
;-
' ·· 1tci:ii'..A
1:1olecules en ab: !II water ~Xisi Ii$' ii'!iq .1:0 ·
rather than a ga<: at normal teinperatures?
(A}
'
..
·~';>";-'
.,!''.
~ ..
i~~':e
11T~p~ ~ted
nsa
5.
e
iar1
'
'
Collagen consi$L~ of three polypeptide ;;h~h:
held iog~th~r~r H-bonds - NI-! groups nu\ CO- groups. Which of the following tern1,
describes the s\fllctme of collagen?
(A)
(B)
(C)
(D)
A trip!~ helix
Anu-llclix
A dou~le helix
A J3-h<llix
i
l'hos!'holipiJs will affect the functio11 of
.v hie~ of the foliov/i'ng cell st~ctures?
l.
EntlopLsn.ic reticulwn
Centrioks ;
IL
III.
Mitoeh0odrion
.IV
Nucleolus'
I 1\)
I anc 11
I ant' Ill
II uud .I/ •
· lli aad ;V 1
rli)
1C)
11!)
tl
:
I
,
iI'
'
.
.
.
- 3-
. . ·'
.
1~referii101es11•~e'Jl'&ibiliib-US i8 MlltY•Jl...._P,li.fif\\;~'l'f•">
solution. 'lbe tests we(e carried out and their respective results are shown itl!the table
below.
____!~~-----------·~·
[===···~~=::
! BLfre1 test
\-·-----,.. ---------
R~sult ·····-----
Purple colour was obtained
-
···----1
~8-_ene~_"..'..:~~~.
·----Blue colou.r ren)ained 0:1 heating.
/ Dilute bydroc/iloric acid was added and the Blue colour be<iame brick-red on
mixtt1re '.v3". b,.biled, allowe.d to cool, neutralized
( and Benedict's'dest was carried out. .
heating.
----------------------
6.
Which ur'1he J,IJowing indicates the food substance(s) present in the.students'
solution?
1
S lard~ protein
Non-reducing sugar op.ly
Reducing and non-reducing sugars
Non-re(Jucing sugar and protein
(A)
. 'lBJ
(C')
(D)
i
•i
7.
In microsmpy, the terln 'resolution' is used
to describe the
I
(A)
(B)
( C)
magnificatkn~y the eyepiece lens
magnifkatiQn ~'Y the objective lens
the ability ofthf microscope to clearly
cisnr.gt:ish b~:tween points on the
.Spec'Ul\CO
(D)
Item 8 refers to th,e diagram below which
shows the structuJ'.e of a generalised plant
cell.
.,
i
the degr~e to !which the specimen
under ohserv4tion is magnified
I
!
8.
Which of the folli)wing options correctly
indicates the organelles that contain DNA''
(A)
(B)
(C)
(D)
II
,.
I
lI ..
I, 2, 3
2,3,5
2,4,6
J,5,6
'.I
1
-49.
1~10 refer~ to
·1he r,rganti 1ts involved in the manufactt;rc,
r ""lficat1 ·n tnd transport of lipa1>~:;,
f -;;pcct1 vel_y t1r.~-
the figure below wlirn
s'1ows the sbubture ofa bacterial cell ;,s
using an electibn microscope ..
.....
ribo.>Odl~.i, rough ER, golgi body,
"'"''I
~--J
'
ly:>cisom,.s
nuu~u3; tjytoplasm, rough ER, goli;i
;'--- D
-- _, __ 01
---i.1-
bcxly - _:
(C)
(U)
ribosoihe~;, smooth ER, golgi body,
iysosom~s
lyso1iornef;, ribosomes, smooth ER,
golgibOOY
....
10.
IV
I·
'Jhe structure iilivolved,in genetic engine.e1 iug
(A)
(B)
(C)
(D)
I
II
Ill
IV
i
-------- ----'--+-
l_!_,;!!1-11 rqfers
lo the diagram below which shows_a transverse $ection of a plant struct"• '-
---x
It.
The area lijbelled X represents
(A)
(B)
(C)
(D)
n qell
a tissue
anorg;m
asystem
'
-
.
'
. 5!~"-:nJ} re for;; to
the diagram below.
)
•
J
~
"ti •
i
Higb concentratio~
. ..
••
•* •
•••
~
••
Concentration gradient
Low concentration
•
12.
The figurfal>ove BEST demonstrates
. (A)
(B)
(C)
,(D)
~..
diffusion
facilitated diffusion
active transport
e>:ocytosis
'
!
-··~------·--··~--------.c..------------"--------
13.
· Item 14 refers to: the gi-aph below showing
the effect of pH tjn the activity of enzymes.
When a pla•:t cell i~ ~laced in.a soluti~p with .
a less negative water potential tliari' 1ts cell
sap, the cell beo(lme~ more
I
!
; AJ
(C
(D.1
flaccid becat)se the solution diffuses
out oftl1c c¢1L
flaccid beca4se water diffuses out of
the cell. .
.
Rate or
reaction
mrgid hecnute the solution diffuses.
into the celi.
.urgi(I bed~ water diffuses lnto the
·.
cell.
'
\
1-'r--.''!--.-~->..,-::..,-.t:.,........,,....;.,...l
4 s 6 7 8 9 10
pH
.
i
Pepsin is an e~e found in the huma11
alimentary syst¢1Ji. Which of the above
a\ltivity curves Jepresents the action of
pepsin?
;
I
(A)
(B)
(C)
(D)
..
,.
",
.IV
0 .1 2: 3
14.
-
m
ll
..
'
-
I
II
III
IV
0
6·
!!~m 17 refers lo the diagram below show nt
lYm.!) ret~rs toithe graph below which
.' \.,,w. the relationship between enzynH;
un1ccatratiun l><ld the rate of an enzyme
1. r-.Ldy. .;ed rei~Clic.;n·l
'\segment of ii strand of DNA.
(
,,
- -~(
-- ;;:"'-\~.-Hydrog~n
r-
.,
·
bonds
I
i
------- ---- -·-+--·
----'>
17.
The base Xis i'
I :n·r.yr:;~e ~·onct>utration
1
!·
i
15.
lh.cd on th·· di:.gram above, which of the.
1,,:·owing staterne°ls BEST describes the rate
of 1.ht enzyme .c~t~lysed reaction?
U\1
(I"
i~
l 6.
cytosil\e
(C)
uracil ·
(D)
adenini:
.
Iv
(ti'
v. n, m; r .rv
(..:: J
("'"
-- ,
18.
)
'
l
~
uuu
Pror e
GGA
ACC
CAU
Which of the followii1g is the amino u..:id
sequence code'il for in this part of the geee?
(B)
Valine rglycine - tryptophan. glyc ne
- lysi.Iie
Tryptophan · giycine ·lysine - val-ne
(C)
- gl:Y,cine
·
Lysin~ - valint - lysine - valillc .
·
v, ll. 1. rv1 m
V !l IV 11 III
LysQie
Tryptphan
Valme
(A)V, I, Lil, JI IV
...G~.
,,.~-.
glyc'
I
I
I
tRNA anttco<lu.1
CGA
CCA
1
The ccirrect s~quel' ce of events is
(Ai
•
. ! '
Activate··~d-·lNA nuc. leotides pair 11p
!
1
Am_Ill\) &Cid
Alanine
.
'
Glycfne
Hyd1og6n bonds be!Weeribases are
broken.
The. mizrJiA formed leaves the
OllClC:ill( I
wit!. exµ sed bases ofDNA.
l'art,,fo. , ~Amolecule1mwirnk
(
The table below shows tlw anticodons 01
.some tRNA *1olecules and the spc:ci fie
amipo acids ea);h would carry.
I
RN A rtu leotides are bonded
togeth«cr.
I fl
~
11te sequenceofbases m one strand ofDnA
fr1Jm part of a gene is
'
ACC CCA TIT
CAT CCA.
i
.
elk f,iJloWillg an: t 1e events in transcription.
1j
.
guarun¢
Ite.!1111! refers fo the fo;Jowing info1matic n.
The ;ate directly proportional iO
lhe 1.'11zyrlie concentration.
The rate isl:nversely proportional to
Ll c t:n.z)rtj"ie concentration.
The 1ateh~s reached equilibriwn.
The .at1.e i~ aflectcd by the enzyme
conc:entnjtion.
1
( ""
(A)
(B)
(D).
I
.. . ..
.
.
-lysine.v;Ju,e .. ,
.
.
.
• •. 1
.
•I
.8\\ ·i, ,, J, of tJ1, fo1.lmving statements
eJ<plains a nuli hy 1'>0!nesis'!
BE~:·r
25.
A hypoth·~~swhich'states that ther~
is 111J cl1~iefence between tl1e
obse:-ved ~nd expected data.
A hypothesjs which states that theN)
is sigiufic11tdifference between the
item, unrl<; investigHtion.
A hypothes.· l~which isnottestable.
A l.ypol!c41s which· can only b<c
\L:stt«.I 1ry ql1Servahons.
(/. i
(B)
(CJ
(P
' i
G GATCC
CCTAG G
100
80
%
60
Survival 40
--··---- --- ---·-- --:r-r----------
-
I!
---- --11-G-,\ATrc
knRJ
Hp ill
i.
1I
--1
---------------- -----1·
11 f' '"'
20
.i-~--r-_,_-,,.--,--,-..---.-
2
err. AA
G___,
__
26.
---'----!
--··---- ···' - ·------,-+-
GTT AAC
CAA 'rTG
--!
::::l:«,)=
DNl~'?.
·I
·
(BJ
'.Cl
Col
ho''°'"
8 20
A few ,-esistant flies reproducd ·
more f: successfully and ti e .
resistance aliele increased in
(D)
frequeqcy.
At eveit generation an increasi"g .
predation of flies caused them i o
becomy more resistant.
. .
Repeate(d exposure to the pesttc1<: e
caused[
the flies to become more
-· ;1
resistaJft.
The alleli: for resistance mutated tio1,,
the rec~sive form to the domina: t
fortn.i
'
Bamlil, hp~II
Eco l{.i Oll;tY '.
Hpal cnly :
Hpal ;1nd Hpal!
I
I
i
(B)
(C)
I
'.A}
.. -- ,--,
JO 12 14 16
Time/ years
I
G!TAAC~::+aa
WOkh
::ut liH~
8
'
(A)
fht ,fri:iram klo-iv ~hows a small piece of
.
6
Wfach or the f91Iowing statements BE:- l
explains the eff6ct ofthe pesticide?
'
I'
Dl-~-,\.
4i
-
CC GG
GO CC
II I'
ADP .
RNA pc)lymerase
I
I
. ---- - --- -- ---- . -.-·1-·-.-----4
Target site
trauscriptase
DNAli~ase
llem 26 refers tel the graph which show'; tJ.e
elf~ci of a pe!itifide oil' houseflies. A jix: J
amol!llt of chehtical was used each' ye 1r
during the rainy season, and the data we ·e
collected over a:im1mber of years.
R">trictk,n euzym;.s cu. t DNA molecule. s
oi.ly at specii'.c br et sites with particular
buse
9C<Juences. 1ne target sites for son.1e
1
re. stdel;on em1yme$ are shown in the tabk
1
below.
! 1
I I
Revers~
(A)
(Bl
(C)
(D)
!
ke!11triction
L1. t~ddition to th'*' humar1 j.rl':i'Ulin gene., v~ hi !1
of the following'would be re.:1uired to pw •ri :~
a ctcombinant pjasmid?
··
..
-7-
..
ite,LJJ refers 10 111<1 di<1grarn below whicll
'hows a cell at mirnt!c anaphase.
,·
21.
Mendel crossed.pure-breeding round arll
yellC.w peas with pure-breeding wrinkled an1
green peas. The·: F 1 seeds were·Tound anc.
yellow. 'The F 1 sel)ds were self-pollinated :mt
the seeds of the,,:F, showed the followin 1
characteristics. ·
i
./-
-i:xi'-~
-.. '>' "-.l··.. ,
(,\
"\
)'(
'•,
~\ -~
315 round ·and yel)ow
lo 1 wrinkled and ,yellow
108 round and grqen
32 wrinkled and ireen
\~'(\!/
~-.JJD__/
19'
(~) n~rn~cr of chromosomes for
'!he haplo!d
this orgamsm is
.
(A)
(13)
I
.'.~..
""
'
(A)
(D)
I
,,
(CJ
('))
20
df
The appearance
the new combinationt o •
characteristics, round and green, and wrinkle<'.
and yellow is due1,,)o
'
I
(C)
..
(D)
The diagram beloiv shows a pair of
hon1(Jiogous chrnmo41mes heterozygous for
two gene loci, .>\a audj Bb.
~"~:·:n
n __~J
....-:rr.__
B
£.1--':i---
:...,R..,egJ='c:::on....
a 1·
·
place
·
b
lfcrossing over t.Jces
in Regfori I, which
o:' t:ie following a1191es will segregate at
mei,>sis l"
I
(A)
(B)
A from a
(C}
(D)
H from b
-
,
He!ght
A from A
Pink
White
Tall plants
~2
158
qS
Dwarf plants
·l2
54
24
'---·
·..
Which of the folltjwing plan:s will produc~
identical otfspringiwhen self-fertilised?
Dwarf, piQk-flowered
q
.
Dwarf, wljito-flowered
Tall, red-flpwered
Tall, white."flowered
,
l
tI
"
---·-----·-
,, Flowu colour
R.~d
(A)
(B)
(C)
(D)
I
s/une
multiple al,leles
A plant breeder::crossed two tall, pink
flowered
plants, the
offspring of which an
.
'
shown belciw.
i
Al
dominanl'l:pistasis
independent assortment of the allele,
for coldur and shape
the genes for colour and shape betng
on the
chromosome
j
27.
··
9-
I
Wlu~ h forJ, ofchromosomal murntiim is illuscrated_,n diagrams t- 3 below'>
l
-f'
l
'·
~
A
B
A
-
COEF(;
-----~·---·--,·----·-··C D
r·-•)
----~
E
.F
G
'·---'+-·. •
A
B
r1:
G
F
J ---<1•>--•11-~w----·
(A)
(B)
(C)
(I))
lnsprtion
tn~i:rsion
Duflicaton
· De1ctk,n
":;i..:
2il
----
!
'
.
fn ffi-i A r..x1c>mbinant technology specific genes are harvested thenireplicat!!d. Which
sequ encc; ~EST represents the COiTect sequence of i:nsul in produ~ti~n?
,,
i
. '
,.
P31creas cell --+ mRNA -+ ~DNA ....;bacterial DNA -f. restriction
.1donuclease....; reinsertion -t protein synthesis -t in~ulin
(A)
,.
(B)
Paxj~reas cell ....; cDNA -1 t>acterial DNA
1
--+ mRNA ....; restriction
~1donuclease-> reinseriion -t protein syntllesis -t insulin
(C)
hujcreas cell--; insulin--> restriction endonuclease....; sDNA ·-1
_ ~acterial DNA-t mRNA -t reinsertion--+ protein sxpthesis .., insulin
(D)
Pm*;reas cell ....; mRNA
___ --· _______ j\do:uclease -t
29.
.!
(L)
(C)
(D)
cDNA -tbacterial DNA ....;:restriction
reinse:~:n --t insulin -t' protein synthesis
One implication of the tse of genetically
modified org:mism•; on humans is
(t\)
--l·
. 30.
···----
Which three of the following statements
fonn the basis ofthelJi'I"Win-WallaceTheory
of evolut;on by natura1 selection?
\,;o many humarul might be
produced
I
organisms ciesig.o,6d for use in
humans mightlescape and cause
lturrnful Gons uences ··
t "" fow huruans ight be produced
crganisms design d for use in
humans migfo e produced in
large nul!lbers
I.
II.
III.
IV
C'haracteristiqs acquired during an
organism 's}ifetime are passed to
its offsprin~.
.
Iildividuals in'ji s(lXlla)ly reproducing
population show va1iation.
More offspring are produced than
can possibly sw·vi vc lo sexual
maturity. :
Offspring tend to ,:esem ble their
parents.
{
C,'.~llEHDt l\V
(A)
.
N HIGH SCJiOOL
LIBR RY
(B)
(0)
(l))
l, II and III o~y
I, II and IV orl)y
i; £µ IDCI. IV oJ!y. .
n,.1J1. _,JV lfa1Y
r
.
•
- 10 i
l·
\V id. o( tht following methocfa :i··asexu,tJ reprod~ction is INCpRRECT, either by
it5 tleLtllion or its example?
·-·-r I
1'
--·---
<
'
_
!
1--- -
'
.
!'p•ragmentallon
I
I
I (,lJ
1-(·,~; ··-
-----------<t-"l~
I
I
'
I
(D)
-,
3 't.
~oeba
Ejacteria
~pliltjrig into sev~ral pieces,
or:· whicl11"'$fOWS
1
atwomis
spirogyra.
.
ijydra
-
~--.--
1
,j
Splillir,g into twodaughter
cells 0 f sinlihir size
each
Budding
'Examples
-
~---
Binary fission
-----------.~-
Dellnltion
i Reproduction
(A)
--
-
I .Type 9f
·----
Prodi;c ing an outgrowth from
the par ~nt, wl1ich breaks off
and becomes a separate
individual ·
Yeast
thngus
'f
.
·:
i
·~-c----~--t--T­
Spore
......\formation
Pro<ltiC es small, lightweight
spores, to assist air dispersal
Ii amboyant
---~-t----~
i
:
,ffiic~of the following represi:1tls a possible s·equence in tis~e <:ulture?
(.\)
i Meristems-t stimuh,t~ moting -+ shoot growth--t 11lantlet .._, yoW1g plant
'
('1)
..
-
I
'1 Young plant -t merist.em -t shoot growth-->
stim~ate rooting --J>
plantlet
'
'. Plantlet --; stimulate r,ooting _, young plant -t merjistems --t shoot growth
(D)
i
I
I
.
'i
.
.
Young plant -t shoot growth-t meristems --J> stiinµlate rooting -t plantlei
.
I
I,
, - --
•
,
,
-
,
, -"
t·
·~
•
Il<m:t.~ refers to the diagram. below which shows the 'tran8~erse section of an anthcT.
I
3J.
1:
j
Whfohiofthe labellerl structures will produce. the gametes?
-~- l ·fr/\i-:c:r.-ct·h·!···;·-0,
-\1i
1 ____ )
../';
;;{~
i
U
I
,<;:
,,v<' c'
'
t..f
1
,.--n- ·
F
,,,!;,y;
55
---Ill
i
- IV
i
(I\)
I I
(B)
(C)
(D)
I1i1II
[(I'
:. »''•r'1 ,- -\
(_"}y
t
---
liv
I.i
: . j
•.. j
• 'iii
i.
. .-
11 .
Hs:m ;'!'! refers to the clia~am below which shows the development of the embryo sac and female
.,.,
gamete.
I .
-
!
---
enf~;--L'~ : }-0egenerate ·-~~ -~---? 8
sac
® ~±--
i.riotht-r cell
-
- -
- --
(D
embryo ".3
~
@
sac
mature ~mbryo sac
The proc"ssos ~ccuring at Stages I, 2,3, ~cl 4 are
:
J4.
I
(A)
weio.sis, mitosis, nuclear fusion, growth
ruitosis: growth, meiosis, nuc]e~fµsion
rnciosi~, growth, mitosis, nucleru: fusion
nuckoarlfusion, growth, mitosis, ri1eiosis
(B)
(C)
(]))
-----·-·-·---···-·-_j·
.15.
.
_-_ __
Th' l'c!:.w.i.ng arc adv3f1tages of two types
ofpo!Linatwn.• ' ·
'
I.
ll.
III.
IV.
37.
No neeµ for anqtlwr plaut
Increases vigour
Widens gene jJopl
D<1es n<>I lo~e advantageous
phenotypes
'
Which of the following is the cofrec1
1
sequence of eve nts that follows _the
fertilisation of a flmver of an endo'fu_ennou•
: ·-·-· plant?
- - -- --
(A)
I
!
(B)
Which of the abovt ale specific to cross
pollin:uion 9
!
(A>
(ll)
(C)
(DJ
J and II only
l and IV ,)[]ly
II and Ill only
I, !!, Ill and [V
(C)
!
!
36.
(D)
I
When :11e pollen grai;1 fliights on the stigma
and Slarts (o) grow, the, first action is that
(A)
a male nucleus
fuses with the
I
,B)
(CJ
a d·Juble rertilis4tion takes place
eLdospenn nuoleus
fuscis
.
!truP.2$ refers to tbe table below which
shows results beforefand after fertilisation iri
plant•.
the generative ttucleus ·divides to
form two male1gametes
the zygote divi~es to form a row of
cells ,
I
·
.
A male gam~te fuses with the diploit.!
nucleus to ~nn a·zygote; the pollen
tube nucleys fo,ses with the ovum
to form (:flcjospenn.
A male garn~te fuses with the diploi<i
nucleus to form endospem1; the
pollen tube nucleus fuses with tht
ovum kl fo~ a zygote.
The pollen tube nucleus fuses with
the diploid nucleus to form
endosperm!; a male gamete fuses
with the ovj.un to form a zygote ..
A male gam~te fuses with the diploid
nuclws to fpm1 endosperm; amale
gamete
with the ovum to fom1
a zygote.
Before Fertilisation
\ After Fertilisa tioo
'
Ovary and contents
Ovary wall
Structw-e A.
foteguments
I
I
Fruit
Peri carp
·Seed
S lructure B -i'
-·-··-------~--;-----
J8.
,,_;
·-------
Which ofthe followiitg is Structure A?
(A)
· Twlil
(B-)
.- (C)
OW!c
~
- ••
.1
t
I
- 12 ,,... ·;-·
_, - :,_ ..
_.-.
,
,·
. -•,
- ·.
.I
l!<m!J.9 reid'i to the follo~'mg diagram
which illustrates a section of the humru'i
female reprmkctive system.
Which ofthe following correctly identifies the'.i,,
structures lal>elied P, Q, Rand S?
'
39.
·-+---
p
s :.
R
Q
Cervix
Myometriurn
Enc!ome~iull'I
Ovary
Cervix
Endom etrium
M yometmum
'·
((::) :.. Ovary
U1erus
Endometriurr1
M yomet~ium
Ulcru:;
Myometriwm
Endo1nettiu1n
--. Oviduct
-,-;_
(. ~)i
(lJ)1
l~
-
~
~
(I)' l r;
__. Oviduct
-·
I
I
'
-·---*·-~fte:r" 4Q refers !o the 'rliagram below showing
.
a trans\ crse section ~U'Ough the middle piece
.
Th~ structure o(the human sperm is suitcod
to .its functio. n'J!.j Wh
.. 'ich of the follow>11g
41.
oft11e sperm.
stmctures ofthJ sperm is NOT accurately
matched with.i~~ction?
· .
.
~-
.
(A)
Structure
{B)
-
Fuoction
Rflcascs on2yme~·-.;h ich
a pathway into ilit
cliii! cytoplasm
i!ij:esi
Acroso·me
--
---n
k
I.
'·!
.
M ifochond ria
l'rrvid.~
energy
fr
rf;- 'P_(f8tion for movemcn
th tail
(C)
4 ()
(D)
Tho ,;!rnoturc l :.beilet H is.
lAJ
\B)
(Cl
(Dj
Nucleus
Ctjntains 46 chromosom
th~t carry genetic
information from the ma:: ___j
an acre sor11ei
tn!~
•.
anu
..·__ ,;-.:.ll.'.-·: .·. ·.'t
a
n.)tub·i·····.···.'
. -
i··
,_-
;
..
,'·'.;
').
·-,'
1~~;1
Centriole
Prbduccs m icrotu bu !es
arf used for movement
-
a flagellum ('
I
1:_\~ ! ·1
1
t
---~-1
. L; -
l'he DNA of~ woman contains a de foe live gene for gonadotroplrin releasing hormone.
42.
Which hom1tj1!e and site of production will be affected by this defe<)t?
-·-···--· I
h
Honuone
Production Site
(A)
A~~(-pifrelic honno_n_e____i Hypothalamus _
(B)
~-o~liclei
(C)
2'.~:'.'._L_?_s~:one _
(0)
!.eutt;ni~ing
stimulating hormone
Pituitary
•
_T_e_st_e_s ____ _
hom1one
-~-vary
_ _ __
--:1---------1
Item 44 refers to ilib diagram below showing
the structure of a ~ection of the placenta.
!.!JillL"-1 refers to the graphs below
surrunarizing the honJ,onal changes during
the ir.enstmal cy7le
woman.
j
of a
i
lllood levels
of pituil•IJ'
-~----~
:1orn10(ll~S
_jk_
'f\
.
I
~-Fs!T--~--~I ~- - -- - - -- --- I '
I '
;~:~~::~: Oest~~!!!l//'~/ /~~oE~~~~·
t
-.::'1-"f'
t
i..v
1•·.,:...::11
I
I
I
I
I
I
Which labelled ~tructure contains many
mitochondria?
'I
1 4 6 8 JO 12114 16 18 20 ~2 24 26 28
End of Menstruation
43.
I
44.
(A)
(B)
(C)
(D)
.Qays
Whc:i w1JI ovulntion 1ccurifthereis a surge
ofLH and FSH ondarr 12 of the cycle?
'
I
2
3
4
'
(A)
(B)
(C)
(D)
i
Wilhln 24 hol,\rs of tho surge
et
36 hours an_. the surge
48 hours after the surge
Befor~ dayl 12, the hormones
I
mentiirned :have no impact on
ovuLt-i(rn
45.
Which of the folfuwing is NOT a function
ofarnniotic fluid?
i
'
{A)
I
(B)
( C) ·
" foetus from physical
Pn>tects ti.le
shock I
Allows fr~e movement which heips
bone development
M~iiltain, a constant temperatur~
aro1.ltld_}he foetm;
(D)
SuP.plies yxygen to the foetus .
'
·lf.YOV.
-"·
.
-:1{-'>•ti!~
...
~ :·
.:.: .
i:-.•
.
;._
,-:
.. , ·,
.,.·. i I
!
I