What is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body?

3

(a)

What are sex hormones? Why are they named so? State their functions.

3

(a)

A ten years old boy is 130 cm tall. If the present height of the boy is 78% of his full height, calculate the full height by which the boy will eventually reach at the end of growth period.

3

(a)

Rama is 13 years old. She is getting pimples on her face these days about which she is worried. Can you explain why she is getting pimples during this age?

3

(a)

Give the definition of adolescence as stated by the WHO. Why is adolescence also called teenage?

3

(a)

'Reproductive life, once begun, continues or it ends sometime'. Explain.

3

(a)

Mention any two features each that are seen in boys and girls each to distinguish them from each other at puberty.

3

(a)

People who do not have enough iodine in their diet, then they may suffer from goitre. Is it true? What is iodised salt? Why is it important?

3

(a)

Is it right that the reproductive life of a woman lasts from menarche to menopause?

3

(a)

We should avoid taking medicines/drugs unless prescribed by a doctor. Give reasons.

3

(a)

Write a short note on nutritional needs of the adolescents

3

(a)

What is the role of hormones in completing the life history of frogs?

3

(a)

How does adolescence affect in reaching mental, intellectual and emotional maturity?

3

(a)

Why is pituitary gland called 'Master Gland'?

3

(a)

You have learnt the scientific facts about human reproduction. There are some myths and taboos regarding them. Explain few of them and discuss their solutions

3

(a)