Chapter 12 and 13
10.
11.
________________________________________________Reproduction
One method employed in birth control is to cut and tie the structures at
12.
Which of the following cell types is responsible for transmitting genetic
A.
1 and 6
information?
B.
1 and 8
A.
W
C.
3 and 6
B.
X
D.
3 and 8
C.
Y
D.
Z
Human being usually bears one baby at a time because normally
A.
only one uterus is found in the female.
13.
B.
only one egg is released in each ovulation.
A.
W only
C.
only one sperm can successfully fertilize an egg.
B.
W and X only
D.
only one embryo is allowed to implant on the uterine wall.
C.
W, X and Y only
D.
W, X, Y and Z
14.
W
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X
Y
Z
3
Which of the following cell type(s) can move by itself?
In which part of a plant does meiosis occur?
A.
anther
B.
fruit
C.
petiole
D.
root tip
Chapter 12 and 13
Directions:
________________________________________________Reproduction
Questions 15 and 16 refer to the diagram below which
shows developing embryo inside the uterus of a mammal.
A.
Part
Function
W
to increase the surface area for mixing the maternal
blood and foetal blood
17.
15.
B.
X
to contract to expel the foetus during birth
C.
Y
to allow the foetus to move about
D.
Z
to prevent the entry of bacteria
Which of the following statements about pollen grains is true?
A.
They fuse with the ovules during fertilization.
B.
They help in the dispersal of plants during pollination.
C.
They germinate to form pollen tubes on reaching any stigma.
D.
They are produced in great numbers to compensate for wastage
Which of the following comparisons between the umbilical artery and
during pollination.
umbilical vein is correct?
umbilical artery
18
umbilical vein
Which of the following statements about binary fission in amoeba is
INCORRECT ?
A.
more oxygen
less oxygen
B.
less carbon dioxide
more carbon dioxide
A.
Two daughter amoebae are formed in each fission.
C.
less glucose
more glucose
B.
The daughter amoebae are identical in their genetic contents.
D.
less urea
more urea
C.
The chromosome number of the daughter amoebae is half of that
of the parent.
16.
Which of the following shows the correct function of the corresponding
D.
part?
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The newly-formed daughter amoebae are smaller in size than
their parent.
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Chapter 12 and 13
________________________________________________Reproduction
20. Which of the following provides the major source of food for the
Directions : Questions 19 and 20 refer to the diagram below which shows
development of the daughter plant from structure A ?
the underground structures of a flowering plant :
A.
P
B.
Q
C.
R
D.
S
21. Which of the following is / are true for sexual reproduction ?
19. The daughter plant developed from structure A
(1)
possesses the same genotype as the parent plant.
(2)
has the same chromosome number as the parent plant.
(3)
can carry out sexual reproduction.
A.
(1) only
B.
(3) only
C.
(1) and (2) only
D.
(1), (2) and (3)
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(1)
It always involves two different parents.
(2)
The resulting offspring are genetically different.
(3)
The resulting offspring are always healthy.
A.
(1) only
B.
(2) only
C.
(1) and (2) only
D.
(2) and (3) only
Directions : Questions 22 to 24 refer to the diagram below which shows a
section of a flower:
5
Chapter 12 and 13
________________________________________________Reproduction
B.
(1) and (3) only
C.
(2) and (3) only
D.
(1), (2) and (3)
24. Which structures will usually wither after fertilization ?
A.
1, 2, 3 and 5
B.
1,3, 6 and 7
C.
2, 5, 6 and 7
D.
3, 5, 6 and 7
25. The following events are involved in the process of giving birth to a baby:
22. Structures 1 and 5 are
(1)
The placenta is detached and expelled from the uterus.
Structure 1
Structure 5
(2)
The umbilical cord is tied and cut.
A.
sepal
style
(3)
The cervix dilates.
B.
petal
stigma
(4)
The baby is pushed out.
C.
sepal
stigma
(5)
The uterus contracts rhythmically causing the amniotic membrane
D.
petal
style
to rupture.
Which of the following is the correct order ?
23. Which of the following characteristics shown in the diagram indicate
A.
(1), (3), (4), (5), (2).
that the flower is insect-pollinated ?
B.
(1), (5), (3), (4), (2).
(1)
Structures 2 and 6 are enclosed within structure 7.
C.
(3), (4), (5), (2), (1).
(2)
Structure 4 occurs in small numbers.
D.
(5), (3), (4), (2), (1).
(3)
Structure 7 is large and conspicuous.
Directions : Questions 26 and 27 refer to the diagram below which shows
A.
(1) and (2) only
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part of the male urinogenital system of man :
6
Chapter 12 and 13
________________________________________________Reproduction
28. Which of the following statements about a pregnant woman are true ?
(1)
She needs more protein in her diet.
(2)
She needs more calcium in her diet.
(3)
She needs more iron in her diet.
A.
(1) and (2) only
B.
(1) and (3) only
C.
(2) and (3) only
D.
(1), (2) and (3)
29. Which of the following are advantages of seed dispersal ?
26. Structures X and Y are :
(1)
It reduces competition.
Structure X
Structure Y
(2)
It prevents the spread of diseases.
A.
sperm duct
urethra
(3)
It increases the chances of genetic variations.
B.
urethra
sperm duct
A.
(1) and (2) only
C.
ureter
sperm duct
B.
(1) and (3) only
D.
sperm duct
ureter
C.
(2) and (3) only
D.
(1), (2) and (3)
27. If duct X is blocked, which of the following is true ?
Directions : Questions 30 and 31 refer to the diagrams below. Diagram I
A.
no urination
B.
no sperm in the semen
shows a longitudinal section of a flower. Diagram II shows a
C.
no sperm production
section of the human female reproductive system.
D.
no sew hormone production
CSWCSS-BIOLOGY
7
Chapter 12 and 13
________________________________________________Reproduction
A.
an anther
B.
an embryo
C.
a stigma
D.
a pollen grain
33. One of the functions of the placenta of a mammal is to
Diagram I
Diagram II
A.
expel the foetus during childbirth.
B.
protect the foetus from mechanical injury.
C.
allow the mother's blood to flow into the capillary network of the
30. Where does fertilization normally occur ?
foetus.
Diagram I
Diagram II
A.
3
5
B.
2
5
C.
3
7
D.
2
7
D.
of the mother.
34. The diagram below shows a sprouting potato tuber :
31. Which structure of the flower is comparable to structure 6 in humans ?
32.
A.
1
B.
2
C.
3
D.
4
If the diploid chromosome number of a flowering plant is 24, which of
the following structures has 12 chromosomes ?
CSWCSS-BIOLOGY
allow metabolic wastes to pass from the foetal circulation to that
8
Chapter 12 and 13
________________________________________________Reproduction
Which of the following statements is INCORRECT ?
A.
The genotype of X and Y are the same.
B.
X and Y will develop into independent plants.
C.
X and Y are developed from the buds of the potato tuber.
D.
Food produced by X and Y will be stored in region Z.
37.
35. Which of the following produce offspring with identical genotypes ?
(1)
budding in yeast
(2)
seed formation in pine
(3)
spore formation in bread mould
A.
(1) and (2) only
B.
(1) and (3) only
C.
(2) and (3) only
With reference to the above diagram, which of the following
D.
(1), (2) and (3)
characteristics indicates that this flower is adapted to wind pollination ?
36. Which of the following is a male secondary sexual characteristic in
A.
It is a bisexual flower.
humans ?
B.
Its stigma hangs outside the flower.
A.
production of sperms
C.
Its anthers lie below the stigma.
B.
development of the testis
D.
Its anthers produce numerous pollen grains.
C.
widening of the hip girdle
D.
development of stronger muscles
CSWCSS-BIOLOGY
9