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Biology for IGCSE & O level - Reproduction (Section 5)

1
Which of the following hormones are involved in the menstrual cycle?
Answer
A
B
D
2
Which of the following is a characteristic of asexual reproduction?
Answer
(C)
Results in offspring that are genetically identical to the parent.
3
Which event marks the end of the luteal phase?
Answer
(B)
Menstruation
4
What is one advantage of asexual reproduction in plants?
Answer
(C)
Rapid reproduction
5
What is the name of the process where the male and female gametes fuse?
Answer
(B)
Fertilization
6
Which hormone is primarily responsible for stimulating the development of the mammary glands during puberty?
Answer
(B)
Estrogen
7
What event triggers the start of menstruation?
Answer
(C)
A drop in progesterone and estrogen
8
Which of the following structures is responsible for the production of sperm?
Answer
(C)
Testes
9
What is formed after fertilization?
Answer
(C)
Seed
10
What is the function of the endosperm in a seed?
Answer
(B)
To provide nutrients for the embryo
11
Which part of the stamen produces pollen?
Answer
(C)
Anther
12
Which of the following is NOT a characteristic of insect-pollinated flowers?
Answer
(D)
Production of large amounts of pollen
13
Which of the following structures is responsible for producing pollen grains?
Answer
(B)
Anther
14
The primary sex organs in females are:
Answer
(D)
Ovaries
15
Which structure in the female reproductive system is homologous to the penis in males?
Answer
(C)
Clitoris
16
What part of a flower becomes the fruit?
Answer
(B)
Ovary
17
Which part of the flower receives the pollen during pollination?
Answer
(A)
Stigma
18
What is one adaptation found in wind-pollinated flowers?
Answer
(C)
Small, inconspicuous petals
19
What is the role of the acrosome?
Answer
(C)
To help the sperm penetrate the egg cell
20
What stimulates the development of the follicle?
Answer
(B)
FSH
21
Which gland secretes fluids that nourish and protect sperm?
Answer
(C)
Seminal vesicles
22
The main function of the seminal vesicles is to:
Answer
(C)
Produce a fluid that nourishes and protects sperm.
23
Which of the following statements is correct regarding asexual reproduction?
Answer
(D)
It produces offspring genetically identical to the parent.
24
What is the function of the corpus luteum?
Answer
(C)
To produce progesterone and estrogen
25
Which of the following is not an advantage of asexual reproduction?
Answer
(D)
Increased variation in the offspring
26
What happens to the ovarian follicle after ovulation?
Answer
(A)
It transforms into the corpus luteum.
27
What part of the flower receives the pollen grains?
Answer
(B)
Stigma
28
What event directly precedes implantation?
Answer
(B)
Fertilization
29
Which part of the flower will become the seed after fertilization?
Answer
(B)
Ovule
30
Which of the following is the most appropriate location for sperm maturation?
Answer
(C)
Epididymis
31
Which of the following is the male reproductive part of a flower?
Answer
(B)
Stamen
32
What is the main advantage of self-pollination?
Answer
(C)
It increases the chances of pollination in the absence of pollinators.
33
Which of the following is a function of estrogen?
Answer
(B)
To thicken the lining of the uterus.
34
Which of the following best describes the process of implantation?
Answer
(C)
The attachment of the embryo to the uterine wall.
35
Which structure produces progesterone?
Answer
(C)
The corpus luteum
36
During which phase of the menstrual cycle does the lining of the uterus thicken?
Answer
(D)
The luteal phase
37
Which of these hormones is not directly involved in the regulation of the menstrual cycle?
Answer
(C)
Testosterone
38
What is the main function of the uterus?
Answer
(C)
To nourish and protect the developing fetus.
39
Which of the following is a function of the uterus?
Answer
(C)
To house and nourish a developing fetus.
40
What is the fusion of male and female gametes called?
Answer
(B)
Fertilization
41
Which hormone is detected in a pregnancy test?
Answer
(C)
Human chorionic gonadotropin (hCG)
42
What are the functions of the petals of a flower?
Answer
A
B
43
In a flower, where is the pollen produced?
Answer
(C)
Anther
44
What is the correct sequence of events for seed germination?
Answer
(A)
Water absorption -> Cell division -> Embryo growth
45
Which of the following is NOT a form of asexual reproduction in the context of the image?
Answer
(D)
Fertilization
46
Which phase of the menstrual cycle immediately follows ovulation?
Answer
(C)
Luteal phase
47
What is the term for the first menstrual period in girls?
Answer
(B)
Menarche
48
What are the conditions necessary for seed germination?
Answer
(B)
Water, oxygen, and suitable temperature
49
Which of the following describes the role of the seminal vesicles in the male reproductive system?
Answer
(C)
To secrete fluid that nourishes and protects sperm.
50
During which stage of the menstrual cycle does ovulation occur?
Answer
(B)
Proliferative phase