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Question (31)

QN0036152

A boy and a girl both show some common changes during adolescence, but other changes differ between them. Which conclusion is most appropriate?

(A) Puberty follows exactly the same pattern in everyone
(B) Puberty includes both common and sex-specific changes
(C) Puberty occurs only after reproduction begins
(D) Puberty is unrelated to reproductive maturation

Correct Answer: B

Explanation:

Puberty involves changes common to both sexes as well as changes specific to boys and girls.

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Question (32)

QN0036153

Why are the testes located outside the abdominal cavity?

(A) Sperm formation requires a temperature lower than normal body temperature
(B) Testosterone can be produced only outside the body
(C) The testes need direct sunlight
(D) The testes cannot function near the urinary bladder

Correct Answer: A

Explanation:

Sperm formation requires a temperature lower than normal body temperature.

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Question (33)

QN0036154

A substance secreted by reproductive glands is involved in the transport and nourishment of sperm. Which structures contribute such secretions?

(A) Seminal vesicles and prostate gland
(B) Ovaries and uterus
(C) Fallopian tubes and cervix
(D) Scrotum and urethra

Correct Answer: A

Explanation:

Seminal vesicles and prostate gland add secretions that help transport and nourish sperm.

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Question (34)

QN0036155

The urethra in a human male can carry both urine and semen. Which structural fact explains this?

(A) It acts as a common passage
(B) It produces sperm
(C) It produces eggs
(D) It stores the embryo

Correct Answer: A

Explanation:

The urethra forms a common passage for urine and sperm.

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Question (35)

QN0036156

A sperm cell must travel towards the female germ-cell. Which structural feature directly assists its movement?

(A) Thick cell wall
(B) Long tail
(C) Large food store
(D) Placenta

Correct Answer: B

Explanation:

The long tail of sperm helps it move towards the female germ-cell.

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Question (36)

QN0036157

A female reproductive cell is released from an ovary and travels towards the uterus through a narrow tube. Which tube is involved?

(A) Urethra
(B) Vas deferens
(C) Fallopian tube
(D) Cervix

Correct Answer: C

Explanation:

The fallopian tube carries the egg from the ovary towards the uterus.

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Question (37)

QN0036158

If fertilisation occurs in a human female, where does the sperm normally encounter the egg according to the chapter?

(A) Uterus
(B) Vagina
(C) Fallopian tube
(D) Cervix

Correct Answer: C

Explanation:

Fertilisation normally occurs in the fallopian tube.

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Question (38)

QN0036159

A zygote divides repeatedly and forms a ball of cells. The developing structure then becomes attached to the lining of the uterus. Which term describes this developing structure after implantation?

(A) Embryo
(B) Pollen grain
(C) Gamete
(D) Spore

Correct Answer: A

Explanation:

The zygote divides to form an embryo, which becomes implanted in the uterine lining.

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Question (39)

QN0036160

A developing embryo needs oxygen and glucose from the mother and must also remove wastes. Which structure performs this exchange function?

(A) Cervix
(B) Placenta
(C) Ovary
(D) Vagina

Correct Answer: B

Explanation:

The placenta provides exchange of nutrients, oxygen and wastes between mother and embryo.

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Question (40)

QN0036161

The uterine lining becomes thick and richly supplied with blood every month. What is the main reason for this preparation?

(A) To produce sperm
(B) To prepare for possible implantation and nourishment of an embryo
(C) To produce pollen
(D) To prevent ovulation permanently

Correct Answer: B

Explanation:

The uterine lining prepares to receive and nourish a fertilised egg.

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Question (31)

A boy and a girl both show some common changes during adolescence, but other changes differ between them. Which conclusion is most appropriate?

Explanation:

Link:

Question (32)

Why are the testes located outside the abdominal cavity?

Explanation:

Link:

Question (33)

A substance secreted by reproductive glands is involved in the transport and nourishment of sperm. Which structures contribute such secretions?

Explanation:

Link:

Question (34)

The urethra in a human male can carry both urine and semen. Which structural fact explains this?

Explanation:

Link:

Question (35)

A sperm cell must travel towards the female germ-cell. Which structural feature directly assists its movement?

Explanation:

Link:

Question (36)

A female reproductive cell is released from an ovary and travels towards the uterus through a narrow tube. Which tube is involved?

Explanation:

Link:

Question (37)

If fertilisation occurs in a human female, where does the sperm normally encounter the egg according to the chapter?

Explanation:

Link:

Question (38)

A zygote divides repeatedly and forms a ball of cells. The developing structure then becomes attached to the lining of the uterus. Which term describes this developing structure after implantation?

Explanation:

Link:

Question (39)

A developing embryo needs oxygen and glucose from the mother and must also remove wastes. Which structure performs this exchange function?

Explanation:

Link:

Question (40)

The uterine lining becomes thick and richly supplied with blood every month. What is the main reason for this preparation?

Explanation:

Link:

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