Adolescents should be careful about what they eat, because

1

(a)

proper diet develops their brains.

(b)

proper diet is needed for the rapid growth taking place in their body.

(c)

adolescents feel hungry all the time.

(d)

taste buds are well developed in teenagers.

The faulty functioning of an endocrine gland can make a person very short or very tall. This gland is

1

(a)

thyroid

(b)

pituitary

(c)

adrenal

(d)

pancreas

The beginning of menstruation at puberty is called

1

(a)

ovulation

(b)

menstruation

(c)

menarche

(d)

menopause

The most conspicuous visible change that occurs in boys during puberty is

1

(a)

developmentin voice box

(b)

increase in height

(c)

production of sperms

(d)

increased sweating

AIDS can spread from an infected person to another person through

1

(a)

sharing food

(b)

blood transfusion

(c)

sharing comb

(d)

a mosquito bite

Pancreas secrete ____________

1

(a)

insulin

The meal that includes all ____________ is a balanced diet.

1

(a)

nutrients

Insufficient production of _______________ in the tadpoles leads to their incomplete development.

1

(a)

thyroxine

Endocrine glands are also called ________________ glands.

1

(a)

ductless

After attaining puberty, boyc develop a _____________ voice.

1

(a)

deep

Testes are responsible for production of sperms.

1

(a) False

(b) True

Each normal cell in our body contains 23 chromosomes.

1

(a) True

(b) False

Pancreas is both exocrine as well as endocrine gland.

1

(a) False

(b) True

Adrenal glands are located just above the kidneys.

1

(a) False

(b) True

The menstrual flow lasts for 28-30 days.

1

(a) True

(b) False

Adolescence is the period from 13-19 years of age. Is there any other term for this period?

2

(a)

Do all the parts of the body grow at the same rate? State yes or no. 

2

(a)

Roshni (11yrs Old) was worried about the changes in her body. How long do you think this period marked by Changes in the body will last?

2

(a)

Name a natural balanced food for infants.

2

(a)

A thread-like structure is present in nucleus. What is it called?

2

(a)

Height of a person is an multifactorial tract. Write the factors which affect the height of the person.

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)

In human females, each time during maturation and release of egg, the inner wall of uterus thickness. Is this thickening permanent? Give reasons.

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)

During adolescence, the body of boys and girls undergoes certain changes. Given below are 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 and fill in the table given below.
Body changes during adolescence

Boy	Girl

5

(a)

Our government has legalised the age for marriage in boys and girls. Give reasons as to why one should get married after a certain age?

5

(a)