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12th Standard English Medium Biology (Zoology) Subject Human Reproduction Book Back 1 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. Which one of the following menstrual irregularities is correctly matched?

    (a)

    Menorrhagia - excessive

    (b)

    Amenorrhoea - absence of menstruation

    (c)

    Dysmenorrhoea - irregularity of menstruation

    (d)

    Oligomenorrhoea - painful menstruation

  2. Find the wrongly matched pair.

    (a)

    Bleeding phase- fall in oestrogen and progesterone

    (b)

    Follicular phase-rise in oestrogen

    (c)

    Luteal phase - rise in FSH level

    (d)

    Ovulatory phase - LH surge

  3. Assertion(A): In human male, testes are extra abdominal and lie in scrotal sacs.
    Reason(R): Scrotum acts as thermoregulator and keeps temperature lower by 2oC for normal sperm production.
    Codes:
    (a) A and R are true, R is the correct explanation of A
    (b) A and R are true, R is not the correct explanation of A
    (c)  A is true, R is false
    (d) Both A and R are false

    (a)

    A and R are true, R is the correct explanation of A

    (b)

    A and R are true, R is not the correct explanation of A

    (c)

    A is true, R is false

    (d)

    Both A and R are false

  4. Assertion(A): Ovulation is the release of ovum from the Graafian follicle.
    Reason(R): It occurs during the follicular phase of the menstrual cycle.
    Codes:
    (a) A and R are true, R is the correct explanation of A
    (b) A and R are true, R is not the correct explanation of A
    (c)  A is true, R is false
    (d) Both A and R are false

    (a)

    A and R are true, R is the correct explanation of A

    (b)

    A and R are true, R is not the correct explanation of A

    (c)

    A is true, R is false

    (d)

    Both A and R are false

  5. Assertion(A): Head of the sperm consists of acrosome and mitochondria.
    Reason(R): Acrosome contains spiral rows of mitochondria.
    Codes:
    (a) A and R are true, R is the correct explanation of A.
    (b) A and R are true, R is not the correct explanation of A.
    (c)  A is true, R is false.
    (d) Both A and R are false.

    (a)

    A and R are true, R is the correct explanation of A

    (b)

    A and R are true, R is not the correct explanation of A

    (c)

    A is true, R is false

    (d)

    Both A and R are false

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