Bio k1 t4 Pptsbp07

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INFORMATION FOR CANDIDATES

1. This question paper consists of 40 questions.

2. Answer all questions.

3. Answer each question by blackening the correct space on the answer sheet.

4. Blacken only one space for each question.

5. f you wish to change your answer! erase the blackene" #ark that you ha$e

#a"e. Then blacken the space for the new answer.

%. The "iagra# in the questions pro$i"e" are not "rawn to scale unless state".

&. 'ou #ay use a non(progra##able scientific calculator.

4551/1 [Lihat sebelah

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For Questions 1 to 40, each question is followed by four alternative answers, A, B, C

or D. Choose one correct answer for each question and blacen the corres!ondin"

s!ace in your ob#ective answer sheet.

Section A

1 )iagra# 1 shows a cross(section of a plant cell.

)A*+A, 1

-hich organelle is in$ol$e" in cellular respiration

A / +

B )

2 The following infor#ation refers to organelle '.

-hat is organelle '

A *olgi apparatus

B ,itochon"rion

+iboso#e

) ucleus


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oun" abun"antly in the flight #uscle cells in insects.

nable sper# #o$e#ent ) *olgi apparatus

666666666666666666666666666666666666

6666666666666666

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3 -hich of the following is not a #uscle tissue

A

B )

4 The bloo" glucose le$el in the bo"y are regulate" by

en"ocrine syste#

circulatory syste#

"igesti$e syste#

7 e8cretory syste#

A only

B an" only

! an" only

) ! ! an" 7 only

5 )iagra# 2 shows a cell organelle.

)A*+A, 2

-hich process cannot occur without this organelle

A 9s#osis

B +espiration


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Acti$e transport

) /hotosynthesis

% )iagra# 3 shows the plas#a #e#brane consists of #olecules arrange" in a "ouble

layer.

)A*+A, 3

The parts labelle" : an" ' are

A both hy"rophilic

B both hy"rophobic

hy"rophilic an" hy"rophobic respecti$ely

) hy"rophobic an" hy"rophilic respecti$ely

&. )iagra# 4 shows the structure of onion cell in solution :.

)A*+A, 4

-hat is solution :


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A 10; sucrose solution

B 5; sucrose solution

0.1; sucrose solution

) )istille" water

< -hich of the following #olecules can #o$e easily through phospholipi" bilayer

A o"iu# ions

B A#ino aci"

*lucose

) -ater

=

The abo$e state#ent "escribes the process of

A 9s#osis

B i#ple "iffusion

Acti$e transport

) acilitate" "iffusion10 A hu#an re" bloo" cell is place" in 3; o"iu# chlori"e solution.

n which "irection "oes water #o$e an" what is the effect on the cell

,o$e#ent of water ffect on cell

A nto the cell light increase in si>e

B 9ut of the cell light "ecrease in si>e

nto the cell ell bursts

) 9ut of the cell o change in cell $olu#e

11 -hich ele#ents are foun" in nucleic aci"s

A arbon an" hy"rogen


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• Transport ion an" #olecule against

concentration gra"ient.

• +equire" carrier protein.

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B arbon! hy"rogen! o8ygen

arbon! hy"rogen! o8ygen! nitrogen

) arbon! hy"rogen! o8ygen! nitrogen! phosphorus

12

-hich co#poun" has the characteristics liste" abo$e.

A ?ipi"

B -ater /rotein

) n>y#e

13 )iagra# 5 shows an e8peri#ent for foo" test.

)A*+A, 5

-hen / is heate" with Bene"ict@s solution! brick(re" precipitate is for#e". Thus! / is


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,e"iu# for bioche#ical reactions in cells

,aintaining os#otic pressure of cells

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A tarch

B ucrose

ellulose

) ructose

14 -hich sugar is foun" in #ilk

A ,altose

B *lucose

?actose

) ructose

15 )iagra# % shows one of the four le$els in protein structures

)A*+A, %

The le$el an" e8a#ple for such protein are

A Tertiary structure! en>y#es

B Tertiary structure! hae#oglobin

uaternary structure! en>y#es

) uaternary structure! hae#oglobin


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1% )iagra# & shows the steps of protein "igestion in hu#an ali#entary canal. ertain

en>y#es react on each substrate +! an" T.

)A*+A, &

Among the following, which are substrate R, S and T

R S T

A /olypepti"e /epti"e A#ino aci"B A#ino aci" /epti"e /olypepti"e

/epti"e /olypepti"e A#ino aci") /epti"e A#ino aci" /olypepti"e

1& -hich of the following is not true about the "ifferences between saturate" fat an"

unsaturate" fat

aturate" fat nsaturate" fat

A oli" at roo# te#perature ?iqui" at roo# te#perature

B igh cholesterol content ?ow cholesterol content

o "ouble bon" present betweentwo carbon ato#s

)ouble bon" present between twocarbon ato#s

) Able to react with a""itionalhy"rogen ato#

nable to react with a""itionalhy"rogen ato#

1< )iagra# < shows a bioche#ical reaction in a cell.


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/rotein TSR/epsin repsinTrypsin

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)A*+A, <

-hat is substance /

A ,onoglyceri"e

B )iglyceri"e

Triglyceri"e

) *lyceri"e

1= -hich en>y#e! substrate an" con"ition are nee"e" for the "igestion of foo" in the

sto#ach

n>y#e ubstrate on"itions

A A#ylase tarch Aci"

B A#ylase tarch Alkaline

/rotease /rotein Aci"

) protease protein Alkaline

20 The following state#ents are about the use of a specific en>y#e in in"ustries an"

"aily li$es.

-hat is the en>y#e use"

A A#ylase /rotease

B ?ipase ) Cy#ase

21 )iagra# = shows a cell cycle in ani#al cell.


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N

Ten"erising #eat

+e#o$e fish skin

8tracting fur fro# ani#al skin

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)iagra# =

-hat happen "uring , an" phases.

M N A ,itosis an" cytokinesis +eplication of )A

B ,eiosis an" cytokinesis +eplication of )A

ytokinesis ynthesis of #itochon"ria

) ell preparation for #itosis ynthesis of #itochon"ria

22 )iagra# 10 shows a technique use" in $egetati$e propagation in plant.

)A*+A, 10

-hat is the #ain purpose of the process "escribe" in )iagra# 10

A To pro"uce a clone with si#ilar resistance

B To pro"uce a clone which will #ature faster

To pro"uce a clone with si#ilar characteristics

) To pro"uce #ore clones which are si#ilar to the parent plant

23


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/ D ynapsis occurs

D hro#ati"s of choro#oso#es separate

+ D pin"le fibres shorten

D o#ologous choro#oso#es separate

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/! ! + an" are e$ents of #eiosis. -hich of the following e$ents occur "uring

anaphase of #eiosis

A / an" only

B + an" only

/! + an" only

) /! an" + only

24 )iagra# 11 shows two stages of cell "i$ision in an anther.

)A*+A, 11

-hat will happen at :

A The chro#oso#es will shrink

B The chro#oso#es will arrange at the equator of the cell

The ho#ologous chro#oso#es will un"ergo crossing o$er

) The ho#ologous chro#oso#es will separate an" #o$e towar" the cell poles

25 )uring #itosis! the chro#oso#e nu#ber an" genetic co#position of a "aughter cell

are #aintaine" as the parent cell because

A chro#ati"s separate "uring anaphase

B each chro#oso#e for#s two chro#ati"s

chro#oso#es separate "uring anaphase

) cytoplas# "i$i"es into two "uring anaphase


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Section B

2% )iagra# 12.1 an" )iagra# 12.2 show the structures of an ani#al an" a plant cells.

)iagra# 12.1 )iagra# 12.2

-hich structures in )iagra# 12.1 an" )iagra# 12.2 ha$e the sa#e function

A C an"

B : an"

' an" +

) - an" /

2& A stu"ent has Eust finishe" "oing her #orning Eogging.

-hat are the changes occur to the bloo" capillaries an" sweat glan" in her skin


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Bloo" capillaries weat glan"

A )ilate ecrete #ore sweat

B )ilate Beco#e inacti$e

onstrict ecrete #ore sweat

) onstrict Beco#e inacti$e

2< )iagra# 13 shows a unicellular organis#.

)A*+A, 13

-hat will happen to this unicellular organis# without organelle :

A 8change of gases cannot occur

B 9s#oregulation cannot occur

/hagocytosis cannot occur

) Binary fission cannot occur

2= n an e8peri#ent! se$eral pieces of potato were place" in sucrose solution of

"ifferent concentrations. The #ass change" were then plotte" onto graphs.

-hich graph shows the #ass changes correctly

A


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, a s s o f p o t a t o

s a # p l e s F g G

oncentration of sucrose solutionF;G

, a s s o f p o t a t o

s a # p l e s F g G

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B )

30 The table below shows the obser$ation #a"e "uring so#e foo" tests carrie" out on

a sa#ple.

Base" on these results! which of the following conclusions about the foo" is

correct

Protein Reducing sugars Starch

A /resent Absent /resent

B /resent /resent Absent

Absent /resent Absent

) Absent Absent /resent

31 )iagra# 14 shows a bioche#ical reaction catalyse" by an en>y#e.

H


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P Q R

Test or !rotein

Biuret test

O"ser#ation

/urple color

Test or starch

o"ine test

O"ser#ation

)ark blue colour

Test or reducing sugar

Bene"ict@s solution

O"ser#ation

?ight blue colour

oncentration of sucrose solution F;G

oncentration of sucrose solution F;G

, a s s o f p o

t a t o

s a # p l e s F

g G

oncentration of sucrose solutionF;G

, a s s o f p o

t a t o

s a # p l e s F g G

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)A*+A, 14

-hat is /! an" +.

P Q R

A *lucose lactose sucroseB *lucose fructose sucrose

*alactose glucose #altose) ructose sucrose #altose

32 )iagra# 15 shows a process in protein synthesis.

H H water

)A*+A, 15

-hat is : an" '$

X $

A atalyst y"rolysis

B y"rolysis on"ensation on"ensation y"rolysis

) on"ensation atalyst

33 -hich of the following en>y#es function opti#ally at p that ranges fro# 2 to 3

A A#ylase /epsin

B ?ipase ) ,altase

34


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X

$

/ro$i"es protection to organs against physical inEuries

/ro$i"es energy for physical acti$ities

nsulates bo"y against heat loss

or#s se8 hor#ones

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-hich co#poun" has the characteristics in the list abo$e

A arbohy"rate

B /rotein

-ater

) ?ipi"

35 )iagra# 1% shows the fertilisation between o$u# an" sper#.

per#! nI23

9$u#! nI24

)A*+A, 1%

The abo$e fertilisation will pro"uce abnor#al offspring cause" by

A #itosis "oes not occur in or"erly #anner.

B #eiosis "oes not occur in or"erly #anner

cytokinesis "oes not occur.

) karyokinesis "oes not occur.


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Section C

3% )iagra# 1& shows an e8peri#ent which is carrie" out to stu"y "iffusion through a

se#i per#eable #e#brane.

)A*+A,

)A*+A, 1&

%hat are & and R

Q R

A ucrose solution 30; )istille" water

B ucrose solution 50; ucrose solution 30;

ucrose solution 30; ucrose solution 30;

) ucrose solution 10; ucrose solution 30;

3& )iagra# 1< represents a #o"el of lipase action.

)A*+A, 1<


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-hat are :! ' an" C

X $ %

A lipase glycerol lipi"

B lipase lipi" glycerol

lipi" lipase glycerol

) lipi" glycerol lipase

3< )iagra# 1= shows the final appearance of the Eelly.

Jey K

Brown io"ine colour )ark blue colour

-ell

)A*+A, 1=

Three wells were cut in agar Eelly! which containe" starch. A "ifferent solution was

place" in each well. Twel$e hours later! the Eelly was floo"e" with io"ine solution.

-hich solution coul" ha$e gi$en the results shown

&ell ' &ell ( &ell )

A A#ylase H aci" A#ylase Boile" a#ylase

B A#ylase H aci" Boile" a#ylase A#ylase

A#ylase A#ylase H aci" Boile" a#ylase

) A#ylase Boile" a#ylase A#ylase H aci"

3= -hat is the i#portance of #itosis

Ase8ual repro"uction in unicellular organis#s.

+eplacing "a#age" an" "ea" cells

ncreases the nu#ber of cells for growth


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(

)'

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7 ncreases the nu#ber of chro#oso#e

A ! an" only

B ! an" 7 only

! an" 7 only

) ! ! an" 7

40 )iagra# 20 shows the stages in #eiotic "i$ision.

)A*+A, 20

-hich of the stages! /! ! + an" ! "ifferentiates between #eiosis an" #itosis

A / +

B )

END OF Q*ESTION PAPER


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