Zoology - Human Reproduction Book Back Questions

12th Standard EM

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. The mature sperms are stored in the

    (a)

    Seminiferous tubules

    (b)

    Vas deferens

    (c)

    Epididymis

    (d)

    Seminal vesicle

  2. The glandular accessory organ which produces the largest proportion of semen is

    (a)

    Seminal vesicle

    (b)

    Bulbourethral gland

    (c)

    Prostate gland

    (d)

    Mucous gland

  3. The most important hormone in intiating and maintaining lactation after birth is

    (a)

    Oestrogen

    (b)

    FSH

    (c)

    Prolactin

    (d)

    Oxytocin

  4. The process which the sperm undergoes before penetrating the ovum is

    (a)

    Spermiation

    (b)

    Cortical reaction

    (c)

    Spermiogenesis

    (d)

    Capacitation

  5. The milk secreted by the mammary glands soon after child birth is called

    (a)

    Mucous

    (b)

    Colostrum

    (c)

    Lactose

    (d)

    Sucrose

  6. 3 x 2 = 6
  7. Mention the differences between spermiogenesis and spermatogenesis

  8. At what stage of development are the gametes formed in new born male and female?

  9. What is colostrum? Write its significance.

  10. 3 x 3 = 9
  11. What is inhibin? State its functions

  12. What is the composition of semen?

  13. Define gametogenesis.

  14. 2 x 5 = 10
  15. Explain the various phases of the menstrual cycle.

  16. The following is the illustration of the sequence of ovarian events (a-i) in a human female.

    a) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
    b) Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned events.
    c) Explain the changes that occurs in the uterus simultaneously in anticipation.
    d) Write the difference between C and H.

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