Q15 of 54 Page 51

Copy and complete the following table:




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13

Correct the statements, if they are wrong.

i) Alpha cells produce insulin and beta cells produce glucagon.


ii) Cortisone suppresses the immune response.


iii) The thymus gland is a lymphoid mass.


iv) Ovary produces eggs and androgen.

 14

Here are a few statements about the endocrine system in man. State whether each of them is true or false. If the statement is false write the correct statement.

i) The endocrine system controls and co-ordinates the physical process of growth, reproduction, and sustenance of life.


ii) Endocrine glands are duct bearing glands which secrete chemical substances called hormones.


iii) The pancreas is a dual gland.


iv) Malfunctioning of the thymus gland causes goiter.

16

Copy the diagram and label the parts with the help of the clues given:


i) It is otherwise called supra renal gland.


ii) It secretes two hormones, namely aldosterone and cortisone.

 17

Copy and identify the types of neurons given below: