Selina solutions concise biology class 8 icse Solutions for Chapter 5 endocrine system and adolescence

Exercises in Chapter 5 endocrine system and adolescence Grade 8

Multiple Choice Questions (MCQ)

Short Answer Questions (SA)

Questions in Multiple Choice Questions (MCQ)

Q1) Put a tick mark against the correct alternativ in the following statements :

(a) Cortisone hormone is secreted by :

Medulla of adrenal
Cortex of adrenal
Pancreas
Thyroid

(b) Which one of the following hormones converts excess of glucose into glycogen

Glucagon
Thyroxine
Insulin
Adrenaline

Insulin
Adrenaline
Glucagon
Thyroxine

(d) Which one of the following glands is also called the master gland :

Pituitary gland
Adrenal glandnd
Thyroid gland
Ovary

(e) The emergency hormone to face the danger or to fight is secreted by;

Islets of Langerhans
Adrenal cortex
Pituitary
Adrenal medulla

(f) Which one of the following endocrine glands produces its hormone in large quantities as a result of emotional stimulation;

Thyroid
Islets of Langerhans
Adrenal medulla
Adrenal cortex

(g) In humans, increased thyroxine production results in :

Increased metabolism
Decreased metabolism
Dwarfism
Cretinism

Questions in Short Answer Questions (SA)

Q1)What is a hormone?

Q2) In Table given below, fill in the blanks by naming endocrine glands, the hormones they secrete, and the function they perform, in a normal person.

Q3) Match the items in Column A with those in Column B.

Column A	Column B
(a) Cretinism	(i) Pituitary Gland
(b) Diabetes Mellitus	(ii) Under development of infant
(c) Increased metabolic rate	(iii) Over secretion of thyroxine
(d) Simple goitre	(iv) Insufficient iodine in food
(e) Growth hormone	(v) Insufficient insulin in blood