Human Reproduction — NEET Biology

Topics in Human Reproduction

• ● Male reproductive system
• ● Female reproductive system
• ● Gametogenesis — spermatogenesis and oogenesis
• ● Menstrual cycle
• ● Fertilisation and implantation
• ● Pregnancy and embryonic development
• ● Parturition and lactation

Human Reproduction — NEET questions with answers

8 worked examples from our bank of 257. Answers and explanations are below each question.

1

Primary sex organs differ from the secondary sex organs in all the following, except

1. A They produce gametes
2. B They secrete sex hormones
3. C They are concerned with the conduction of gametes
4. D Testes in male and ovaries in female are the examples of primary sex organs

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Correct answer: C

Conduction of gametes is function of secondary sex organs.

2

Why the testes in human beings and mammals are situated outside the abdominal cavity within a pouch called scrotum?

1. A There is not enough space in the pelvic area for the testicles to be housed internally
2. B The scrotum helps in maintaining the low temperature of testes, $2.5 ^ { \circ } \mathrm { C }$ lower than normal body temperature required for spermatogenesis
3. C The scrotum helps in maintaining the high temperature of testis, $2.5 ^ { \circ } \mathrm { C }$ higher than the normal body temperature required for spermatogenesis
4. D Providing more space for the growth of epididymis

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Correct answer: B

Testes are extra-abdominal because for spermatogenesis, temperature required is $2.5 ^ { \circ } \mathrm { C }$ lower than normal body temperature.

3

Read the following paragraph with two blanks : Each testis has about A compartments called testicular lobules. Each lobule contains
B highly coiled seminiferous tubules in which the sperms are produced. The correct option for the two blanks is

1. A
2. B
3. C
4. D

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Correct answer: C

Seminiferous tubules are site for spermatogenesis.

4

Which of the following cells secrete testicular hormones called androgens and form endocrine part of the testis?

1. A Leydig cells
2. B Interstitial cells
3. C Sertoli cells
4. D Both (1) & (2)

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Correct answer: D

Leydig cells are also called interstitial cells because they are present in the interstitial space between the seminiferous tubules and they secrete androgens (testosterone).

5

Vas deferens receives a duct from seminal vesicle and opens into urethra as

1. A Urethral meatus
2. B Ejaculatory duct
3. C Ureter
4. D Epididymis

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Correct answer: B

Path of sperm

6

Fructose is present in the secretion of

1. A Corpus spongiosum
2. B Seminal vesicles
3. C Urethra
4. D Tyson's gland

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Correct answer: B

Secretin of seminal vesicles contain fructose, inositol, prostaglandins and clotting protein.

7

Male accessory glands include

1. A Paired seminal vesicles
2. B A prostate gland
3. C Paired bulbourethral gland
4. D All of these

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Correct answer: D

Bulbourethral glands (= Cowper's glands) and seminal vesicles are paired and prostate gland is unpaired.

8

Sertoli cells are found in

1. A Ovaries and secrete progesterone
2. B Testes and secrete testosterone
3. C Seminiferous tubules and after spermiogenesis, sperm heads become embedded in them
4. D Adrenal cortex and secrete adrenaline

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Correct answer: C

Sertoli cells are also known as sustentacular or nurse cells.

Human Reproduction — free practice tests (DPPs)

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Human Reproduction — frequently asked questions

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