Page 1 - 3.Home Assignment ( Obj & Subj) - secondary sexual (1)

SAI International School
Subject- Biology, Class-VIII
Chapter- Reaching the age of adolescence
Subtopic- Secondary sexual characters -
Role of hormones in initiating reproductive functions
Module- 21

Home Assignment

OBJECTIVE (MCQ)

Q.1 The changes occur in both males and females that distinguish them from each
other is called _____
(a) Primary sexual characters
(b) Secondary sexual characters
(c) Puberty
(d) All of the above
Q.2 Name the male and female sex hormones respectively.
(a) Adrenaline and Insulin
(b) Estrogen and Progesterone
(c) Testosterone and Estrogen
(d) Thyroxine and Testosterone

Q.3 Characteristics of hormones:
(a) They act on specific target organ
(b) Reach target organ through blood
(c) They are secreted in very small amounts
(d) All of the above.

Q.4 The gland which is known as the master gland is ………………
(a) Adrenal
(b) Thyroid
(c) Pituitary
(d) Pancreas

Q.5 Identify the incorrect statements-
(i) The grown-up boys have a bigger voice box in their throat whereas grown
up girls have a smaller voice box in their throats.
(ii) The reproductive organ in female; testes produces gametes sperms.
(iii) The genes inherited from parents, is the only factor responsible for
increase in height during puberty.
(iv) The male hormone (estrogen) begins to release by the ovaries
(a) (i), (iii)
(b) (iii), (ii)
(c) (ii), (iii), (iv)
(d) (i), (ii), (iii)