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Biology for IGCSE & O level - Reproduction (Section 3)

1
Which structure is the site where fertilization usually takes place?
Answer
(D)
Fallopian tube (oviduct)
2
Which hormone is essential for maintaining pregnancy after implantation?
Answer
(C)
Progesterone
3
After fertilization, which part of the flower develops into the fruit?
Answer
(B)
Ovary
4
Which hormone is released by the corpus luteum?
Answer
(C)
Progesterone
5
Which of the following is a necessary condition for seed germination?
Answer
(C)
Water
6
What type of reproduction results in offspring that are genetically different from the parent?
Answer
(C)
Sexual reproduction
7
Which of the following is an advantage of asexual reproduction?
Answer
(C)
Rapid reproduction rate
8
What is the name of the process by which a mature egg is released from the ovary?
Answer
(B)
Ovulation
9
Which of the following statements best describes the role of the corpus luteum?
Answer
(C)
It produces hormones to maintain the uterine lining.
10
What is the purpose of the female gamete?
Answer
(C)
Providing genetic information to the offspring.
11
Which of the following best describes the advantage of asexual reproduction in plants?
Answer
(B)
It helps the plant quickly reproduce in favorable conditions
12
What is the primary purpose of the sepals?
Answer
(B)
To protect the flower bud
13
What is the role of the amniotic sac?
Answer
(C)
To provide a protective, fluid-filled environment for the developing fetus.
14
Which hormone is primarily responsible for the development of secondary sexual characteristics in females during puberty?
Answer
(C)
Estrogen
15
Which gland secretes hormones that influence the function of the ovaries and testes?
Answer
(C)
Pituitary gland
16
What are the main hormones involved in the second half of the menstrual cycle?
Answer
B
D
17
What is the name given to the process of sperm formation?
Answer
(C)
Spermatogenesis
18
Where in the male reproductive system is sperm stored?
Answer
(B)
Epididymis
19
Which structure is responsible for receiving pollen during pollination?
Answer
(B)
Stigma
20
Which of the following best describes the role of FSH in the female reproductive system?
Answer
(B)
Stimulates the development of the ovarian follicle.
21
What is the correct sequence of structures that sperm passes through from the testes to the outside of the body?
Answer
(B)
Epididymis -> Vas deferens -> Ejaculatory duct -> Urethra
22
What is the primary function of petals in a flower?
Answer
(B)
Attracting pollinators.
23
What does 'oogenesis' refer to?
Answer
(C)
The formation of egg cells.
24
What is the function of the clitoris?
Answer
(C)
To provide sexual pleasure.
25
Which of the following hormones directly stimulates the uterus to prepare for implantation?
Answer
(C)
Estrogen and progesterone
26
What structure is the site of sperm production in the male reproductive system?
Answer
(C)
Testes
27
Which of these statements about the structure of the vagina is correct?
Answer
(B)
It is a hollow muscular organ with a mucus membrane lining.
28
What part of the male reproductive system is responsible for the production of sperm?
Answer
(C)
Testes
29
What is the role of the endometrium in the female reproductive system?
Answer
(C)
To provide a site for implantation and support the developing embryo.
30
What is the function of the style?
Answer
(C)
To connect the stigma to the ovary
31
Which part of a flower develops into a fruit after fertilization?
Answer
(B)
Ovary
32
What is the function of the ovary in the female reproductive system?
Answer
(B)
To produce eggs.
33
What process must occur to form a seed?
Answer
(B)
Fertilization
34
What event occurs during the follicular phase of the menstrual cycle?
Answer
(C)
A follicle matures in the ovary.
35
What is the major difference between the male and female sex hormones?
Answer
(C)
The specific hormones are different, with males producing androgens (like testosterone) and females producing estrogens and progesterones.
36
Which structure is NOT a part of the female reproductive system in plants?
Answer
(C)
Anther
37
What structure connects the testes to the rest of the male reproductive system?
Answer
(B)
Vas deferens
38
What is the process that leads to the formation of a zygote?
Answer
(C)
Fertilization
39
Which of the following is primarily responsible for the start of the first menstrual cycle?
Answer
(C)
The onset of puberty
40
What are the key events that happen during the luteal phase of the menstrual cycle?
Answer
A
C
41
What is the primary function of the epididymis in the male reproductive system?
Answer
(B)
Store sperm
42
Which structure stores and matures sperm?
Answer
(B)
Epididymis
43
Where is the site of sperm maturation?
Answer
(B)
Epididymis
44
Where does the fetus receive nutrients during pregnancy?
Answer
(C)
From the placenta.
45
Where in the male reproductive system does sperm production occur?
Answer
(B)
Testes
46
What part of a flower is responsible for producing pollen grains?
Answer
(C)
Anther
47
Which structure produces the hormone inhibin, which decreases FSH?
Answer
(A)
Testes
48
Which hormone is responsible for maintaining the uterine lining during pregnancy?
Answer
(C)
Progesterone
49
Which of the following is the main cause of menopause?
Answer
(A)
A decrease in estrogen production.
50
Which part of the male reproductive system is responsible for the transport of sperm?
Answer
(C)
Vas deferens