Biology Today — May 2017

8. The figure given below depicts a diagrammatic sectional view

of the human female reproductive system. Which set of three

parts out of I-VI have been correctly identified?

III

V

VI

IV

I

II

(a) (II) Endometrium, (III) Infundibulum, (IV) Fimbriae

(b) (III) Infundibulum, (IV) Fimbriae, (v) Cervix

(c) (IV) Oviducal funnel, (V) Uterus, (VI) Cervix

(d) (I) Perimetrium, (II) Myometrium, (III) Fallopian tube (I)

(AIPMT Prelims 2011)

9. The second maturation division of the mammalian ovum occurs

(a) shortly after ovulation before the ovum makes entry

into the Fallopian tube

(b) until after the ovum has been penetrated by a sperm

(c) until the nucleus of the sperm has fused with that of

the ovum

(d) in the Graafian follicle following the first maturation

division. (AIPMT Prelims 2010)

10. Which one of the following is the correct matching of the

events occurring during menstrual cycle?

(a) Proliferative phase : Rapid regeneration of myometrium

and maturation of Graafian follicle

(b) Secretory phase : Development of corpus luteum and

increased secretion of progesterone

(c) Menstruation : Breakdown of myometrium and ovum

not fertilised

(d) Ovulation : LH and FSH attain peak level and sharp fall

in the secretion of progesterone (CBSE-PMT 2009)

11. Some important events in the human female reproductive

cycle are given below. Arrange the events in a proper

sequence. A – Secretion of FSH, B – Growth of corpus luteum,

C – Growth of the follicle and oogenesis, D – Ovulation,

E – Sudden increase in the levels of LH

(a) A → D → C → E → B (b) B → A → C → D → E

(c) C → A → D → B → E (d) A → C → E → D → B

(Karnataka-PMT 2009)

12. Which hormone level reaches peak during luteal phase of

menstrual cycle?

(a) Luteinising hormone (b) Progesterone

(c) Follicle stimulating hormone

(d) Estrogen (J & K-PMT 2008)

13. In the human female, menstruation can be deferred by the
    administration of
    (a) combination of FSH and LH
    (b) combination of estrogen and progesterone
    (c) FSH only
    (d) LH only. (CBSE-PMT 2007)


14. Withdrawal of which of the following hormone is the
    immediate cause of menstruation?
    (a) Progesterone (b) Estrogen
    (c) FSH (d) FSH-RH (CBSE-PMT 2006)


15. A human female reaches menopause around the age of
    (a) 50 years (b) 15 years
    (c) 70 years (d) 25 years.
    (Karnataka-PMT 2000)

Assertion & Reason

The following questions consist of two statements each :

assertion (A) and reason (R). To answer these questions, mark

the correct alternative as directed below:

(a) If both A and R are true and R is the correct explanation

of A.

(b) If both A and R are true but R is not the correct explanation

of A.

(c) If A is true but R is false.

(d) If both A and R are false.

1. Assertion : 1 st mitotic division in primary oocytes results in
   the formation of two equal sized cells.
   Reason : These cells are equally functional.


2. Assertion : The main function of mammary glands is lactation.
   Reason : Mammary glands develop under the influence of
   prolactin and oxytocin.


3. Assertion : Menstrual cyclical changes occur in oviducts and
   uterus of female.
   Reason : Oviducts and uterus are sites of fertilisation.
   MPP-1 CLASS XII ANSWER KEY


4. (a) 2. (a) 3. (a) 4. (b) 5. (c)


5. (c) 7. (a) 8. (b) 9. (b) 10. (b)


6. (b) 12. (b) 13. (a) 14. (d) 15. (b)


7. (c) 17. (b) 18. (c) 19. (a) 20. (d)


8. (d) 22. (b) 23. (b) 24. (d) 25. (d)


9. (d) 27. (d) 28. (d) 29. (a) 30. (c)


10. (b) 32. (d) 33. (a) 34. (d) 35. (c)


11. (a) 37. (d) 38. (c) 39. (c) 40. (d)