-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
1/30
SULIT 4551/2
4551/2 SULIT
1
SEKTOR SEKOLAH BERASRAMA PENUH
BAHAGIAN SEKOLAH
KEMENTERIAN PELAJARAN MALAYSIA
PEPERIKSAAN PERCUBAAN
SIJIL PELAJARAN MALAYSIA 2007
BIOLOGI
Kertas 2
Dua jam tiga puluh minit
JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU
Untuk Kegunaan Pemeriksa
Bahagian Soalan Markahpenuh
Markahdipeolehi
1 13
2 12
3 12
4 12
A
5 11
6 20B
7 20
8 20C
9 20
Jumlah 100
1. Kertas soalan ini mengandungi tiga bahagian.
Bahagian A, Bahagian B dan Bahagian C. Jawabsemua soalan dalam Bahagian A, satu soalan
daripada Bahagian B dan satu soalan dari Bahagian
C2. Jawapan kepada Bahagian A hendaklah ditulis
dalam ruang jawapan yang disediakan dalam kertas
soalan. Langkah penting dalam kerja mengira
hendaklah ditunjukkan.
3. Jawapan kepada Bahagian B dan Bahagian C
hendaklah ditulis pada ruang jawapan yang
disediakan. Anda diminta menjawab dengan lebihpanjang untuk Bahagian B dan Bahagian C tetapi
jawapan mestilah jelas dan logik. Dalam jawapan
anda, persamaan, gambar rajah, jadual, graf dan cara
lain yang sesuai untuk menjelaskan jawapan anda
boleh digunakan.
4. Jawapan kepada ketiga-tiga bahagian ini hendaklah
diserahkan bersama-sama. Anda hendaklah
menyerahkan kertas tulis dan kertas graf tambahan.
5. Penggunaan kalkulator saintifik yang tidak boleh
diprogramkan adalah dibenarkan.
Kertas soalan ini mengandungi 29 halaman bercetak
Nama:
Tingkatan:.4551/2
Biologi
Kertas 2
Ogos
2007
2
12 jam
4551/2 @ 2007 Hak cipta Sektor Sekolah Berasrama Penuh [Lihat sebelah
SULIT
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
2/30
SULIT 4551/2
4551/2 SULIT
2
Section A
[ 60 marks ]
Answer all questions
1. Diagram 1.1 shows the relationship between a cell, chromosome, DNA, genes and
bases
DIAGRAM 1.1
a) On Diagram 1.1 , mark and label of the following terms :
i) DNA
ii) Bases
iii) Chromosomes
[3 marks]
b) State the chromosome number of the cell shown in Diagram 1.1
[ 1 mark ]
genes
1(a)
1(b)
Cell
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
3/30
SULIT 4551/2
4551/2 SULIT
3
c) What can you deduce about genes based on Diagram 1.1 ?
..
..
.
[ 1 mark ]
d) Diagram 1.2 represent parts of a molecule of DNA
DIAGRAM 1.2
i) Name a unit of DNA.
..
[ 1 mark ]
ii) What is K ?
[ 1 mark ]
A
T
G
A unit
of DNA
K
1 (c)
1 (d)(ii)
1(d)(i)
For
examiners
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
4/30
SULIT 4551/2
4551/2 SULIT
4
iii) Complete the Diagram 1.2 to show that DNA molecule consist two
strands that joined together by hydrogen bond.[ 3 marks ]
e) Diagram 1.3 shows the karyotype of a normal person and a person with
Cri-du-Chat syndrome
DIAGRAM 1.3
i) Determine the sex of person with above karyotype.
[ 1 mark ]
Normal person
1 (d) (iii)
1(e)(i)
For
examiner
s use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
5/30
SULIT 4551/2
4551/2 SULIT
5
ii) Based on the Diagram 1.3, explain why Cri-du-chat syndrome occur ?
.
[2 marks ]
1(e) (ii)
TOTAL
For
examinersuse
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
6/30
SULIT 4551/2
4551/2 SULIT
6
2. Diagram 2 shows a cross section of a leaf .
DIAGRAM 2
(a) (i) Name the structure labelled Q.
..
[1 mark ]
(ii) State two tissues that form the structure named in (a)(i)
1. .
2. .
[2 marks]
P
Stoma
Q
2(a)(i)
2(a)(ii)
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
7/30
SULIT 4551/2
4551/2 SULIT
7
(b) Explain how the structure labelled P in Diagram 2 is adapted for optimal
photosynthesis.
..
.
.
.
[ 3 marks ]
( c ) Explain how the above statement enables the following plants to carry out
photosynthesis at an optimum rate.
i) Aquatic plants
.
.
.
[2 marks]
ii) Desert plants
.
.
..
[ 2 marks ]
In different habitats, plants have different distribution ofstomata and chloroplasts.
2(b)
2 (c)(i)
2(c)(ii
For
examiner
s use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
8/30
SULIT 4551/2
4551/2 SULIT
8
d) Explain the important of green plant to living organism.
..
..
..
[ 2 marks ]
3. A man has the free earlobe as shown in Diagram 3.1, married to woman with
same type of earlobe as shown in Diagram 3.2.
2(d)
DIAGRAM 3.1 DIAGRAM 3.2
TOTAL
For
examinersuse
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
9/30
SULIT 4551/2
4551/2 SULIT
9
Their children P, Q, R, S, T, and V have trait, as shown in Diagram 3.3
P girl Q - boy R girl
S boy
Attached earlobe
T- boy V girl
DIAGRAM 3.3
(a) Based on the Diagram 3.3 which of the earlobe trait is dominant ? Explain your
answer.
.
.
[2 marks]
(b) Explain whether the trait is inherited as sex- linkage inheritance?
.
.[2 marks]
3(a)
3(b)
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
10/30
SULIT 4551/2
4551/2 SULIT
10
(c) If E is a dominant allele for earlobe trait, and e is recessive allele, draw aschematic diagram this inheritance of earlobe trait.
[5marks]
3(c)
For
examinersuse
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
11/30
SULIT 4551/2
4551/2 SULIT
11
(c) (i) What type of variation shows in earlobe inheritance?
[ 1 mark ]
(ii) State how this type of variation is caused
.
.
.
[1 mark]
(d) Diagram 3.4 shows a species of moth in industrial area. The originalmoth is white .
DIAGRAM 3.4
Based on the diagram define what is mutation?
.
.[ 1 mark]
3(c)(i)
3(i)(ii)
3(d)
TOTAL
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
12/30
SULIT 4551/2
4551/2 SULIT
12
4. Diagram 4.1 shows a part of the circulatory system in human.
DIAGRAM 4.1
a) What happens to the blood pressure as the blood flow from P to Q ?
.[ 1 mark ]
b) Explain why is important for P to have thick wall.
.
.
.
[ 2 marks ]
4(a)
4(b)
QP
From heart
To heart
For
examinersuse
Blood capillaries
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
13/30
SULIT 4551/2
4551/2 SULIT
13
c) Explain how nearby muscle at Q prevent the back flow of blood.
.
.
.........................................................................................................................................
[ 2 marks ]
d) Explain how the structure of capillaries allow substances to pass from them to
the surrounding efficiently.
[ 3 marks ]
4(c )
4(d)
For
examinersuse
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
14/30
SULIT 4551/2
4551/2 SULIT
14
e) (i) Sketch graph to show average blood pressure at P, capillaries, Q in Diagram 4.2
[ 1 mark]
P capillaries Q
Position in circulatory system
DIAGRAM 4.2
e (ii) Our normal blood pressure is 120/80 mmHg. Explain what the figure represent.
.
.
.[ 3 marks]
Blood
pressure
4(e)(i)
4 (e) (ii)
TOTAL
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
15/30
SULIT 4551/2
4551/2 SULIT
15
5. In natural ecosystems, there is competition between members of the same species as
well as between different species.
a) Explain how competition between members of the same species helps to control
population growth.
[ 2 marks ]
b) Crop plants must compete with weeds for the same resources. Farmers
control weeds by spraying herbicides(weedkillers).State two factors that the crop plants and weed may compete for and explain the
importance of each.
Factor 1 : ...
Explanation : ..
[ 2 marks ]
Factor 2 : .
Explanation : .
[ 2 marks]
5(a)
5(b)
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
16/30
SULIT 4551/2
4551/2 SULIT
16
c) Two species of the flour beetle, compete with each other for flour. Both are parasitized
by a protozoan .The graph in Diagram 5 show the changes in numbers of the twospecies over 900 days when a parasite is absent and when it is present.
DIAGRAM 5
i) Which species is the most successful when the parasite is absent ? Explain
your answer.
.
.
..
..
[ 3 marks ]
5(c )(i)
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
17/30
SULIT 4551/2
4551/2 SULIT
17
ii) Explain the effect of the parasite on the relative success of the two beetles.
.
.
.
[ 2 marks ]
5 (c) (ii)
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
18/30
SULIT 4551/2
4551/2 SULIT
18
Section B
[ 20 marks ]Answer any one question
6. Diagram 6.1 shows parent cells undergoing cell division.
DIAGRAM 6.1
a) Based on the Diagram 6.1
i) What is the process shown ? State the significant of the process.
[ 4 marks ]
ii) Draw and explain the phases involved to produce daughter cells .[ 10 marks ]
Cell division
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
19/30
SULIT 4551/2
4551/2 SULIT
19
b) Diagram 6.2 shows a group of cells that is exposed to ultraviolet ray.
DIAGRAM 6.2
The exposure drives the cell cycle malfunctions. Based on the Diagram 6.2 describe
effect of cell cycle malfunctions to the body.[ 6 marks]
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
20/30
SULIT 4551/2
4551/2 SULIT
20
7. Diagram 7 shows the development of a human zygote.
DIAGRAM 7
a) Describe the processes from P to Q .[ 4 marks ]
b)
Explain the above statement in terms of the development of foetus.
[ 6 marks]
Pregnant women are advised not to smoke and avoid
from drugs and alcohol.
P
Q
two cells
stage
Fallopian
Tube
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
21/30
SULIT 4551/2
4551/2 SULIT
21
c) The fallopian tubes of a married woman are blocked, making it impossible for herto conceive through the natural process. She and her husband insist to have their
own child . Explain one modern technique that can be used by the childless
couple to conceive. Justify your choice.
[ 10 marks ]
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
22/30
SULIT 4551/2
4551/2 SULIT
22
Section C[ 20 marks ]
Answer any one question.
8. Diagram 8 shows the assimilation of digested food in the organ and body cell.
DIAGRAM 8
a ) Based on Diagram 8 , explain the assimilation of the following types of
food
( i ) glucose( ii ) amino acids
( iii ) lipids
[ 10 marks ]
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
23/30
SULIT 4551/2
4551/2 SULIT
23
b) Energy requirement for a girl aged 15 is 9000 kJ daily.Table 1 shows types of food, quantity and energy content of her daily
menu.
Types of food Quantity taken
( g )
Energy Content
( kJ /100 g )
Rice 350 1500
Chips 150 1000
Roasted Chicken 300 800
Grilled Beef 200 1200
Boiled potato 150 500
Chocolate 100 2500
Yoghurt 200 200Egg 100 600
TABLE 1
Calculate the total energy value taken by the girl daily .If she continues to take the menu everyday for a long time, explain the
consequences of the habit to her health.
[ 10 marks ]
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
24/30
SULIT 4551/2
4551/2 SULIT
24
9. (a) Diagram 9 shows a ball and socket joint with tissues P, Q and R
which are responsible for locomotion in a human.
DIAGRAM 9
Explain the role of the structures above in the locomotion.
[ 10 marks ]
(b) Some drugs and steroids may have good effect as well as badeffect on nervous system and the activity of mucles. There are
other alternatives instesd of consuming drugs and steroids which
probably a better choice for sustaining good health of the muscles
and nervous coordination over a long period of time.
Justify the arguments above based on biological point of view.
[10 marks]
END OF QUESTION PAPER
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
25/30
SULIT 4551/2
4551/2 SULIT
25
SPACE FOR ANSWERS
Section:.............................................. Question no:.............................................
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
26/30
SULIT 4551/2
4551/2 SULIT
26
SPACE FOR ANSWERS
Section:.............................................. Question no:.............................................
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
For
examiners
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
27/30
SULIT 4551/2
4551/2 SULIT
27
SPACE FOR ANSWERS
Section:.............................................. Question no:.............................................
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
For
examiners
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
28/30
SULIT 4551/2
4551/2 SULIT
28
SPACE FOR ANSWERS
Section:.............................................. Question no:.............................................
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
29/30
SULIT 4551/2
4551/2 SULIT
29
SPACE FOR ANSWERS
Section:.............................................. Question no:.............................................
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
Forexaminers
use
-
8/6/2019 Bio k 2 Percubaan Sbp 2007 PDF September 2 2007-6-46 Pm 648k
30/30
SULIT 4551/2
4551/2 SULIT
30