SEBA Class 8 Science Important Chapter 13 Reaching The Age of Adolescence

SEBA Class 8 Science Important Chapter 13 Reaching The Age of Adolescence Solutions English Medium As Per SEBA New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 8 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 8 General Science Download PDF. Important Notes for Class 8 Science SCERT.

SEBA Class 8 Science Important Chapter 13 Reaching The Age of Adolescence

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 8 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 8 General Science Important Notes for All Chapters, You can practice these here.

Reaching The Age of Adolescence

Chapter: 13

PART – II

IMPORTANT QUESTION ANSWER

A. Very Short Type Question & Answer:

1. What is adolescence?

Ans: Adolescence is the period of life between childhood and adulthood when many physical and mental changes occur.

2. What is puberty?

Ans: Puberty is the onset of changes in the body that make a person capable of reproduction.

3. What are secondary sexual characteristics?

Ans: Features that distinguish males and females, like facial hair in boys and breast development in girls.

4. What is the role of hormones?

Ans: Hormones regulate growth, puberty, reproductive maturity, and many body functions.

5. What are sex chromosomes in males and females?

Ans: Females have XX chromosomes, and males have XY chromosomes.

6. What is menstruation?

Ans: Monthly shedding of the uterine lining with blood in females if fertilisation does not occur.

7. What is the function of the pituitary gland?

Ans: It controls other endocrine glands and regulates growth and reproduction.

8. What is AIDS and how is it caused?

Ans: AIDS is caused by HIV and spreads through infected syringes, blood, or from mother to baby.

9. What is the legal age for marriage in India?

Ans: 18 years for girls and 21 years for boys.

10. Why is a balanced diet important during adolescence?

Ans: It supports rapid growth and development during this stage.

B. Fill in the Blanks:

1. The period of life when the body undergoes changes and becomes capable of reproduction is called ________.

Ans: Adolescence.

2. The female hormone responsible for secondary sexual characteristics is ________.

Ans: Estrogen.

3. A girl’s first menstrual flow is called ________.

Ans: Menarche.

4. The disease caused due to lack of insulin is ________.

Ans: Diabetes.

5. The hormone secreted by the thyroid gland is ________.

Ans: Thyroxine.

C. True or False:

1. Puberty begins at the same age for all individuals.

Ans. False.

2. Testosterone is the male sex hormone.

Ans. True.

3. Menopause marks the beginning of the reproductive life in women.

Ans. False.

4. Goitre is caused due to deficiency of thyroxine.

Ans. True.

5. AIDS can spread through sharing food with an infected person.

Ans. False.