Q.1. The correct sequence of stages in spermatogenesis are:
(a) spermatogonia → spermatid → spermatocyte → sperm
(b) spermatocyte → spermatogonia → spermatid → sperm
(c) spermatogonia → spermatocyte → spermatid → sperm
(d) spermatid → spermatocyte → spermatogonia → sperm
Answer
Answer: (c)Q.2. The signals of parturition originate from
(a) placenta
(b) fully developed foetus
(c) oxytocin released from pituitary
(d) both placenta and fully developed foetus
Answer
Answer: (d)Q.3. The membranous cover of the ovum at ovulation is
(a) corona radiata
(b) zona radiata
(c) zona pellucida
(d) chorion
Answer
Answer: (a)Q.4. Identify the odd one from the following.
(a) Labia minora
(b) Fimbriae
(c) Infundibulum
(d) Isthmus
Answer
Answer: (a)Q.5. The Leydig cells are a source of
(a) fructose
(b) androgens
(c) progesterone
(d) mucus
Answer
Answer: (b)Q.6. The function of corpus luteum is to produce
(a) estrogen
(b) progesterone
(c) HCG
(d) relaxin
Answer
Answer: (b)Q.7. Choose the incorrect statement from the following.
(a) In birds and mammals internal fertilisation takes place.
(b) Colostrum contains antibodies and nutrients.
(c) Polyspermy in mammals is prevented by the chemical changes in the egg surface.
(d) In the human female implantation occurs almost seven days after fertilisation.
Answer
Answer: (c)Q.8. Which hormone of pituitary gland regulates Sertoli cells?
(a) LH
(b) FSH
(c) GH
(d) prolactin
Answer
Answer: (b)Q.9. Identify the correct statement from the following.
(a) High levels of estrogen triggers the ovulatory surge.
(b) Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards.
(c) Sperms released from seminiferous tubules are highly motile/non-motile.
(d) Progesterone level is high during the post ovulatory phase of menstrual cycle.
Answer
Answer: (d)Q.10. Spot the odd one out from the following structures with reference to the male reproductive system.
(a) Rete testis
(b) Epididymis
(c) Vasa efferentia
(d) Isthmus
Answer
Answer: (d)Q.11. Seminal plasma, the fluid part of semen, is contributed by.
(i) Seminal vesicle (ii) Prostate gland (iii) Urethra (iv) Bulbourethral gland
(a) (i) and (ii)
(b) (i), (ii) and (iv)
(c) (ii), (iii) and (iv)
(d) (i) and (iv)
Answer
Answer: (b)Q.12. Which of the following statements is incorrect?
(a) GnRH stimulates secretion of FSH and LH
(b) LH stimulates the Leydig cells to secrete androgen
(c) FSH acts on the Sertoli cells and stimulates spermiogenesis
(d) None of these
Answer
Answer: (d)Q.13. Spermiation is the process of the release of sperms from.
(a) Seminiferous tubules
(b) Vas deferens
(c) Epididymis
(d) Prostate gland
Answer
Answer: (a)Q.14. Mature Graafian follicle is generally present in the ovary of a healthy human female around.
(a) 5 – 8 day of menstrual cycle
(b) 11 – 17 day of menstrual cycle
(c) 18 – 23 day of menstrual cycle
(d) 24 – 28 day of menstrual cycle
Answer
Answer: (b)Q.15. Acrosomal reaction of the sperm occurs due to
(a) its contact with zona pellucida of the ova
(b) reactions within the uterine environment of the female
(c) reactions within the epididymal environment of the male
(d) androgens produced in the uterus
Answer
Answer: (a)Q.16. Seminal plasma in humans is rich in
(a) fructose and calcium
(b) glucose and calcium
(c) Progesterone and testosterone
(d) potassium and calcium
Answer
Answer: (a)Q.17. Which one of the following is not a male accessory gland?
(a) Seminal vesicle
(b) Ampulla
(c) Prostate
(d) Bulbourethral gland
Answer
Answer: (b)Q.18. Match between the following representing parts of the sperm and their functions and choose the correct option.
| Column I | Column II |
| (A) Head | (i) Enzymes |
| (B) Middle piece | (ii) Sperm motility |
| (C) Acrosome | (iii) Energy |
| (D) Tail | (iv) Genetic material |
(a) A-(ii), B-(iv), C-(i), D-(iii)
(b) A-(iv), B-(iii), C-(i), D-(ii)
(c) A-(iv), B-(i), C-(ii), D-(iii)
(d) A-(ii), B-(i), C-(iii), D-(iv)
Answer
Answer: (b)Q.19. Number of chromosomes in polar body of human is
(a) 23
(b) 46
(c) 21
(d) 1
Answer
Answer: (a)Q.20. Which among the following has 23 chromosomes?
(a) Spermatogonia
(b) Zygote
(c) Secondary oocyte
(d) Oogonia
Answer
Answer: (c)Q.21. Match the following and choose the correct options
| Column I | Column II |
| (A) Trophoblast | (i) Embedding of blastocyst in the endome trium |
| (B) Cleavage | (ii) Group of cells that would differentiate as embryo |
| (C) Inner cell mass | (iii) Outer layer of blastocyst attached to the endometrium |
| (D) Implantation | (iv) Mitotic division of zygote |
(a) A-(ii), B-(i), C-(iii), D-(iv)
(b) A-(iii), B-(iv), C-(ii), D-(i)
(c) A-(iii), B-(i), C-(ii), D-(iv)
(d) A-(ii), B-(iv), C-(iii), D-(i)
Answer
Answer: (b)Q.22. Which of the following hormones is not secreted by human placenta?
(a) hCG
(b) Estrogens
(c) Progesterone
(d) LH
Answer
Answer: (d)Q.23. The vas deferens receives duct from the seminal vesicle and opens into urethra as
(a) epididymis
(b) ejaculatory duct
(c) efferent ductule
(d) ureter
Answer
Answer: (b)Q.24. Urethral meatus refers to the
(a) urinogenital duct
(b) opening of vas deferens into urethra
(c) external opening of the urinogenital duct
(d) muscles surrounding the urinogenial duct
Answer
Answer: (c)Q.25. The immature male germs cell undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
(a) Spermatogonia have 46 chromosomes and always undergo meiotic cell division
(b) Primary spermatocytes divide by mitotic cell division
(c) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
(d) Spermatozoa are transformed into spermatids
Answer
Answer: (c)Q.26. Morula is a developmental stage
(a) between the zygote and blastocyst
(b) between the blastocyst and gastrula
(c) after the implantation
(d) between implantation and parturition
Helpful and all questions are from ncert .