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Biology for IGCSE & O level - Reproduction (Section 1)

1
What structure in the seed provides food for the developing embryo?
Answer
(C)
Endosperm
2
Which of the following is NOT a stage of pregnancy?
Answer
(A)
Fertilization
3
What does the term "menarche" refer to?
Answer
(A)
The first menstrual period.
4
What part of the female reproductive system is responsible for carrying the egg from the ovary to the uterus?
Answer
(C)
Fallopian tube
5
What are some of the functions of estrogen in females?
Answer
A
B
6
What is formed when the male and female gametes fuse?
Answer
(C)
Zygote
7
Which hormone is responsible for stimulating the development of the uterine lining in preparation for pregnancy?
Answer
(A)
Estrogen
8
What is the term for the transfer of pollen from the anther to the stigma?
Answer
(C)
Pollination
9
Which gland in the male reproductive system produces fluids that nourish and protect the sperm?
Answer
(C)
Seminal vesicles
10
In the male reproductive system, which structure carries both sperm and urine?
Answer
(B)
Urethra
11
Which structure transports sperm from the epididymis to the ejaculatory duct?
Answer
(B)
Vas deferens
12
What is the role of the fimbriae?
Answer
(B)
To receive the ovulated egg and guide it into the fallopian tube
13
The female reproductive structure of a flower is called the:
Answer
(B)
Pistil
14
Which of the following are signs of puberty in males?
Answer
A
C
15
What is the role of the zona pellucida?
Answer
(B)
To protect the egg cell.
16
What is a key difference between insect-pollinated flowers and wind-pollinated flowers regarding pollen?
Answer
(B)
Wind-pollinated flowers produce more pollen.
17
What is the function of the seminal vesicles?
Answer
(C)
To produce fluid that nourishes and protects sperm
18
What is the benefit of cross-pollination?
Answer
(B)
It increases genetic variation.
19
The cervix is a:
Answer
(B)
A narrow passage forming the lower end of the uterus.
20
Which of the following is a characteristic of asexual reproduction?
Answer
(D)
Results in offspring that are genetically identical to the parent
21
In asexual reproduction, offspring are produced from...
Answer
(B)
One parent
22
What is the function of the scrotum?
Answer
(C)
To regulate the temperature of the testes.
23
What is the function of the epididymis?
Answer
(B)
To store and mature sperm.
24
Which part of the flower develops into the fruit?
Answer
(B)
Ovary
25
Which of the following structures is NOT directly involved in the production or transport of sperm in the male reproductive system?
Answer
(C)
Ovary
26
The male reproductive part of a flower is called the...
Answer
(C)
Stamen
27
Which structure will become the fruit?
Answer
(B)
Ovary
28
What structure is responsible for producing sperm?
Answer
(A)
Testes
29
What is the main difference between self-pollination and cross-pollination?
Answer
(C)
Self-pollination involves the same flower or the same plant, while cross-pollination involves different plants.
30
What is the process of the sperm cell fusing with the egg cell called?
Answer
(B)
Fertilization
31
Which hormones are released by the pituitary gland during the menstrual cycle?
Answer
A
B
32
What stimulates the formation of the corpus luteum?
Answer
(B)
LH
33
Which organ is responsible for producing sperm?
Answer
(B)
Testes
34
Which structure provides the food for the developing embryo in a seed?
Answer
(C)
The endosperm
35
Which gland secretes fluids that neutralize the acidity in the female reproductive tract and also nourish the sperm?
Answer
(C)
Bulbourethral gland
36
What is the role of the seminal vesicles in male reproductive system?
Answer
(B)
Producing a fluid that nourishes sperm
37
Which stage of the menstrual cycle directly follows ovulation?
Answer
(C)
Luteal phase
38
What is the significance of the acrosome in a sperm cell?
Answer
(C)
It contains enzymes that help the sperm penetrate the egg.
39
What is the primary role of the stamen?
Answer
(C)
To produce pollen
40
What develops into the fruit?
Answer
(B)
Ovary
41
Which of the following is NOT a characteristic of wind-pollinated flowers?
Answer
(D)
Brightly colored petals
42
Which of the following is the term for the muscular layer of the uterus?
Answer
(B)
Myometrium
43
What is the function of the anther?
Answer
(A)
To produce the pollen
44
Which of the following is a role of the prostate gland?
Answer
(C)
Producing a fluid that nourishes and protects sperm
45
What is the role of follicle-stimulating hormone (FSH) in the female reproductive system?
Answer
(B)
Stimulates the development of the follicle and the production of estrogen.
46
Which structure connects the testes to the vas deferens?
Answer
(B)
Epididymis
47
Which of the following hormones is most directly involved in stimulating the contraction of the uterus during labor?
Answer
(C)
Oxytocin
48
Which is the collective name for the female parts of a flower?
Answer
(B)
Pistil/Carpel
49
What is the lining of the uterus called?
Answer
(C)
Endometrium
50
What is the correct order of events in the menstrual cycle?
Answer
(A)
Menstruation, follicular phase, ovulation, luteal phase.