REACHING THE AGE OF ADOLESCENCE
REVISION
1. Unscramble the underlined words in the following sentences.
(a) Reproductive life of a woman lasts from hacreemn to
spauoemen.
(b) The development of a caterpillar to an adult butterfly is termed
as poommertaissh.
(c) The overgrowth of sumselc in xalnyr leads to the hoarse voice
in adolescent boys.
(d) Dannalier helps the body to adjust and fight the stress.
2. Complete the following sentences.
(a) In females, the uterine wall thickens to receive the __________.
(b) Endocrine glands release hormones directly into___________for
transportation to the __________.
(c) The sex hormones,_______________________ and estrogen are
responsible for the development of __________ characters.
(d) Release of sex hormones is under the control of a hormone
secreted from the __________.
3. Give a suitable word for each of the following statements.
(a) The site which responds to a hormone.
(b) Name of a gland which transports secretions through ducts.
(c) Chemicals which control changes at adolescence stage.
(d) It marks the beginning of reproductive period.
4. Name the hormone that is released by testes at the onset of
puberty.
5. Name the female hormone produced by ovaries that helps in
development of mammary glands.
6. Lila always eats only dal and rice in every meal. She often falls ill
and has become prone to diseases. Can you suggest changes in
her diet which can make her healthy and free from disease?
7. Mention any two features each that are seen in boys and girls
each to distinguish them from each other at puberty.
8. We should avoid taking medicines/drugs unless prescribed by a
doctor. Give reasons.
9. A few of Paheli’s classmates eat potato chips and burgers
regularly during the recess at school. Are they healthy eating
habits? Give reasons.
10. Read the statements given below and fill up the blanks with the
correct words listed in the box.
deep, ductless, nutrients, thyroxine
(a) The meal that includes all __________ is a balanced diet.
(b) Insufficient production of __________ in the tadpoles leads to
their incomplete development.
(c) Endocrine glands are also called __________ glands.
(d) After attaining puberty boys develop a__________ voice.
11. During adolescence, the body of boys and girls undergoes certain
changes. Given below are a few of those changes.
(a) Broad shoulders
(b) Wider chests
(c) Wider region below waist
(d) Development of muscles
(e) Development of mammary glands
(f) Growth of facial hair
(g) Acne and pimples on face
(h) Development of sex organs
(i) High-pitched voice
(j) Growth of pubic hair.
Categorise these changes into those that occur in boys and those
that occur in girls .
12. Name the hormone which would be released during the following
situations:
(a) a frightened person.
(b) growth of a child to adult.
(c) development of caterpillar to moth.
(d) development of tadpole to frog.
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