CBSE - Class 12 Biology Human Reproduction Worksheet
1.
Name the functions of the following: (e) Fimbriae
2.
Fill in the blanks: (k) The structure which provides vascular connection between foetus and uterus is called _____________
3.
Identify True/False statements. Correct each false statement to make it true. (g) Presence or absence of hymen is not a reliable indicator of virginity or sexual experience. (True/False)
4.
Define spermiogenesis and spermiation.
5.
Identify True/False statements. Correct each false statement to make it true. (a) Androgens are produced by Sertoli cells. (True/False)
6.
Name the functions of the following: (b) Endometrium
7.
Fill in the blanks: (g) Ovulation is induced by a hormone called _____________
8.
Draw a labelled diagram of sperm.
9.
Identify True/False statements. Correct each false statement to make it true. (f) Menstrual cycle ceases during pregnancy. (True/False)
10.
How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?
11.
Draw a labelled diagram of a Graafian follicle?
12.
Write two major functions each of testis and ovary.
13.
How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?
14.
Draw a labelled diagram of female reproductive system.
15.
Name the functions of the following: (a) Corpus luteum
16.
Fill in the blanks: (c) Fertilisation is _____________ in humans (external/internal)
17.
What are the major functions of male accessory ducts and glands?
18.
Fill in the blanks: (j) Zygote divides to form _____________which is implanted in uterus.
19.
What is oogenesis? Give a brief account of oogenesis.
20.
Identify True/False statements. Correct each false statement to make it true. (b) Spermatozoa get nutrition from Sertoli cells. (True/False)