Human Reproduction MCQ Chapter 3

Below are some of the very important NCERT Human Reproduction MCQ Class 12 Biology Chapter 3 with Answers. These Human Reproduction MCQ have been prepared by expert teachers and subject experts based on the latest syllabus and pattern of term 1 and term 2. We have given these Human Reproduction MCQ Class 12 Biology Questions with Answers to help students understand the concept.

MCQ Questions for Class 12 Biology Chapter 3 are very important for the latest CBSE term 1 and term 2 pattern. These MCQs are very important for students who want to score high in CBSE Board.

We have put together these NCERTQuestions Human Reproduction MCQ for Class 12 Biology Chapter 3 with Answers for the practice on a regular basis to score high in exams. Refer to these MCQs Questions with answers here along with a detailed explanation.

1. Pouch in which testes are suspended outside the abdominal cavity is

(a) tunica albuginea(b) inguinal canal(c) epididymis(d) scrotum

2. Tested are extra abdominal in position. Which of the following is the most appropriate reason?

(a) Narrow pelvis in male(b) Special protection for testes(c) Prostrate gland and seminal vesicles occupy maximum space(d) Require lower temperature than normal body temperature

3. Temperature of human testes is

(a) 2-2.5oC below body temperature(b) 38oC (c) 33oC (d) 2.25oC above body temperature

4. Testicular lobules contain

(a) 3-5 seminiferous tabules(b) 2-6 seminiferous tabules (c) 5-7 seminiferous tabules(d) 3-5 seminiferous tabules

5. Approximate length and width of testis are

(a) 4-5 cm and 2-3 cm(b) 5-6 cm and 3-4 cm(c) 6-7 cm and 4-5 cm(d) 7-8 cm and 8-9 cm

6. The seminiferous tabules of the testis is lined on its inside by

(a) spermatocytes(b) spermatogonia(c) cells of Sertoli(d) both (b) and (c)

7. Interstitial cells secretes

(a) androgen(b) oestrogen(c) FSH(d) inhibin

8. The vas deferens recieves duct from the seminal vesicle and opens into urethra as

(a) epididymis(b) ejaculatory duct(c) efferent ductule(d) ureter

9. The vasa efferentia exit the testis and open into the A located along the B surface.

Here, A and B refer to

(a) A-rete testis, B-epididymis(b) A-epididymis, B-rete testis(c) A-epididymis, B-posterior(d) A-epididymis, B-anterior

10. Choose the correct option.

(a) A-Testis-possesses 3-4 testicular lobules(b) B-Seminal vesicle-storage of sperm(c) C-Vas deferens-helps in sperm transfer(d) D-Prostrate gland-secretes seminal fluid

11. Read the following statements.

(I) Each testis has about 25 compartment called testicular lobules(II) Each testicular lobule contains one to three highly coiled seminiferous (III) Sertoli cells act as nurse cells of testicles(IV) Sertoli cells are activated by FSH secreted

Which of the above statements are incorrect?

(a) I & III(b) Only I(c) II & IV(d) III & IV

12. Select the correct sequence for transport of sperm cells in male reproductive system.

(a) Testis Epididymis Vasa efferentia Rete testis Inquinal canal Urethra(b) Seminiferous tubules Rete testis Vasa efferentia Epididymis Vas deferens Ejaculatory duct Urethra Urethral meatus(c) Seminiferous tubules Vasa efferentia Epididymis Iquinal canal Urethra(d) Testis Epididymis Vasa efferentia Vas deferens Ejaculatory duct Inquinal canal Urethra Urethral meatus

13. Urethral meatus refers to the

(a) urinogenital duct(b) openings of vas deferens into urethra(c) external openings of the urinogenital duct(d) muscles surrounding the urinogenital duct

14. Given below diagram refers to the TS of testis showing few seminiferous tubules.

A, B, C and D in the above diagram represent.

(a) A Sertoli cells, B Secondary spermatocyte, C Interstitial cells, D Sperms(b) A Interstitial cells, B Spermatogonia, C Sertoli cells, D Sperms(c) A Sertoli cells, B Spermatozoa, C Interstitial cells, D Sperms(d) A Sertoli cells, B Spermatogonia, C- Interstitial cells, D Sperms

15. Seminal plasma, the fluid part of semen, is contributed by

(I) Seminal vesicle(II) Prostrate(III) Urethra (IV) Bulbourethral gland

(a) I and II(b) I, II and IV(c) II, III and IV(d) I and IV

16. Function of bulbourethral gland is

(a) lubrication of penis(b) to increase motility of sperm(c) to enhance the sperm count(d) all of the above

17. The ovaries are located one on each side of the A . Each ovary is about 2-4 cm in length connected to the B wall by C . Fill the suitable choices for A-C.

(a) A-inner medulla, B-peripheral cortex, C-ligaments(b) A-lower abdomen, B-pelvic, C-ligaments(c) A-pelvic wall, B-lower abdomen, C-ligaments(d) A-inner medulla, B-peripheral cortex, C-lower abdomen

18. Identify A, B, C and D.

(a) A-Oviduct, B-Uterus, C-Cervix, D-Ovary(b) A-Cervix, B-Uterus, C-Ovary, D-Tumour(c) A-Uterus, B-Uterine Cavity, C- Oviductal Funnel, D-Ovary(d) A-Cervix, B-Uterine Cavity, C-Fallopian Tube, D- Ovary

19. Human fallopian tube is about

(a) 8-9 cm long(b) 9-10 cm long(c) 10-12 cm long(d) 12-17 cm long

20. Match the following.

(a) (A) 2, (B) 1, (C) 3, (D) 4(b) (A) 1, (B) 2, (C) 3, (D) 4 (c) (A) 4, (B) 3, (C) 1, (D) 2(d) (A) 2, (B) 3, (C) 4, (D) 1

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21. The main function of fimbriae of Fallopian tube is

(a) help in development of ovary(b) help in collection of the ovum after ovulation(c) help in development of ova(d) help in fertilisation

22. The external genitalia of female reproductive system are collectively called

(a) vagina(b) vulva(c) cervix(d) clitoris

23. Identify the odd one out from the following.

(a) labia minora(b) fimbriae(c) infundibulum(d) isthmus

24. Fleshy folds of tissue which extends down to the mons pubis and surround the vaginal opening is called

(a) labia minora(b) labia majora(c) hymen(d) clitoris

25. Cushion of fatty tissue by skin and pubic hair is called

(a) mons pubis(b) labia majora(c) clitoris(d) vagina

26. The uterus opens into the vagina by a canal called

(a) cervical (b) canal (c) ampulla (d) oviduct

27. Sectional view of mammary gland shows

(I) nipple and areola(II) mammary lobes (alveolus) and duct(III) ribs(IV) ampulla and lactiferous duct

Choose the correct option

(a) I, II, III and IV(b) I, II and III(c) III, IV and II(d) I, IV and III

28. Several mammary duct join to form a wider mammary ampulla, which is connected to

(a) lactiferous duct (b) seminiferous duct (c) seminiferous tubules (d) lactiferous canal

29. The spermatogonia undergo division to produce sperm by the process of spermatogonesis.

(a) true (b) false (c) cannot say (d) partially true or false

30. Which of the following cells of haploid number of chromosomes?

(a) 1o spermatocytes (b) 2o spermatocytes (c) Spermatid (d) Both (b) and (c)

31. Which among the following has 23 chromosomes?

(a) spermatogonia(b) zygotes (c) secondary oocyte (d) oogonia

32. Find out spermatid and sertoli cell in given below diagram.

(a) D and E(b) E and F(c) A and C(d) B and E

33. Spermiogenesis or spermatiliosis is

(a) changing of spermatid to spermatozoa (b) changing of spermatid to sperm (c) both (a) and (b) (d) changing of spermatid to secondary spermatocyte

34. In the formation of spermatozoa, the spermatids attach to

(a) Leydig cells(b) corona radiata cells(c) sertoli cells(d) first polar body

35. The difference between spermatogenesis and spermiation is

(a) in spermiogenesis, spermatozoa from sertoli cell are released into the cavity of seminiferous tubules, while in spermiation, spermatozoa are formed (b) in spermiogenesis, spermatozoa are formed, while in spermiation, spermatids are formed (c) in spermiogenesis, spermatids are formed, while in spermiation, spermatozoa are formed (d) in spermiogenesis, spermatozoa are formed, while in spermiation, spermatozoa released through seminiferous tubules

36. The release of _________ leads to initiation of spermatogenesis.

(a) GnRH (b) lactin (c) testosterone (d) oestrogen

37. Everytime copulation does not lead to fertilization and pregnancy because of failure of sperm to reach the

(a) ampulla (b) cervix (c) endometrium (d) myometrium

38. What is the correct sequence of sperm formation?

(a) spermatid, spermatocyte, spermatogonia, spermatozoa(b) spermatogonia, spermatocyte, spermatozoa, spermatid(c) spermatogonia, spermatozoa, spermatocyte, spermatid(d) spermatogonia, spermatocyte, spermatid, spermatozoa

39. Identify A, B & C in the diagram below.

(a) A acrosome, B tail, C mitochondria (b) A plasma membrane, B acrosome, C mitochondria (c) A mitochondria, B acrosome, C plasma membrane (d) A mitochondria, B plasma membrane, C tail

40. Match the following.

(a) (A) 2, (B) 4, (C) 1, (D) 3(b) (A) 4, (B) 3, (C) 1, (D) 2(c) (A) 4, (B) 1, (C) 2, (D) 3(d) (A) 2, (B) 1, (C) 3, (D) 4

41. Find the odd one out.

(a) spermatocyte(b) polar body(c) spermatid(d) spermatogonium

42. Oogenesis is initiated during the embryonic development stage when a couple of million oogonia are formed within each fetal ovary; no more oogonia are formed and added after birth.

(a) true(b) false(c) cant say(d) partially true or false

43. Primary oocyte surrounded by a layer of granulosa cells is called

(a) secondary follicle(b) ootid(c) primary follicle(d) tertiary follicle

44. At the time of birth, the oocyte is present in _______ stage of cell cycle.

(a) prophase-I(b) prophase-II(c) meiosis-II(d) mitosis

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