SEBA Class 7 Science Important Chapter 5 Growth and Changes During Adolescence

SEBA Class 7 Science Important Chapter 5 Growth and Changes During Adolescence Solutions English Medium As Per SCERT New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 7 Science Important Chapter 5 Growth and Changes During Adolescence Notes and select need one. SEBA Class 7 Science Important Notes in English Download PDF. SCERT Class 7 Science (Amar Bijnan) Additional Solutions in English.

SEBA Class 7 Science Important Chapter 5 Growth and Changes During 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. SCERT Class 7 Science (Amar Bijnan) Extra Solutions in English are part of All Subject Solutions. Here we have given SCERT Class 7 Science Additional Notes in English for All Chapters, You can practice these here.

Growth and Changes During Adolescence

Chapter: 5

PART – I

IMPORTANT QUESTION ANSWER

Short Type Question-Answers:

1. What is adolescence? 

Ans: Adolescence is the transitional period of human development between childhood and adulthood, generally starting at age 10 and lasting until 19.

2. Define puberty. 

Ans: Puberty is the stage where an adolescent’s body undergoes internal and external changes to become biologically capable of reproduction.

3. What are secondary sexual characteristics? 

Ans: These are physical features that help distinguish males from females but are not directly involved in the process of reproduction, such as facial hair in boys or breast development in girls.

4. Why do many adolescents develop pimples or acne? 

Ans: During adolescence, the skin produces excessive oily secretions, which can block tiny pores and lead to infection and the formation of pimples.

5. What is the ‘Adam’s Apple’? 

Ans: It is the visible enlargement of the voice box (larynx) in the throat of adolescent boys, which often causes their voices to become deep and hoarse.

6. What are hormones? 

Ans: Hormones are special chemicals produced by endocrine glands that regulate various aspects of growth, development, and body functions.

7. What is the average duration of the menstrual cycle? 

Ans: The menstrual cycle generally recurs every 28 to 30 days, though it can vary between 21 to 35 days in many healthy girls.

8. Define menopause. 

Ans: Menopause is the stage in a woman’s life, usually between ages 45 and 55, when menstrual periods stop naturally, marking the end of reproductive capability.

9. What are mood swings? 

Ans: Mood swings are sudden changes in feelings (such as becoming happy or upset quickly) without a clear reason, which are common due to emotional changes in adolescence.

10. What is substance abuse? 

Ans: Substance abuse is the regular and addictive use of harmful substances like tobacco, alcohol, or illegal drugs that can cause severe health damage.

Fill in the Blanks:

1. The stage of human development between childhood and adulthood is called _____________.

Ans: Adolescence.

2. The voice box in adolescent boys enlarges and protrudes as a lump called _____________.

Ans: Adam’s Apple.

3. Pimples are caused by the blockage of skin pores due to excessive __________ secretions.

Ans: Oily (sebaceous).

4. Most hormones in our body are produced by special parts called _____________.

Ans: Endocrine glands.

5. The stage in which a woman’s periods stop naturally is known as _____________.

Ans: Menopause.

True or False:

1. The timing and pattern of hair growth are exactly the same for every adolescent.

Ans: False, The timing and pattern of hair growth are different for each adolescent. These changes depend on hormones, genetics, nutrition, and overall health. Therefore, not everyone experiences hair growth in the same way or at the same time.

2. Girls can and should carry out daily activities normally during their menstrual periods.

Ans: True.

3. Hormones are special chemicals that control growth and changes during adolescence.

Ans: True.

4. Adolescence is a stage where emotions are often weaker than in childhood.

Ans: False, During adolescence, hormonal changes make emotions stronger and more intense. Teenagers may experience mood swings and heightened feelings. Therefore, emotions are usually stronger, not weaker, during this stage.

5. Using addictive substances even “just once” can be dangerous and lead to addiction.

Ans: True. 

Match the Following:

Column A	Column B
(a) Adam’s Apple	(i) Sudden change in emotion without a clear reason
(b) Menstrual cycle	(ii) Products used to maintain hygiene during menstruation
(c) Mood swings	(iii) Addiction to harmful things like tobacco or alcohol
(d) Sanitary pads	(iv) A process in adolescent girls that repeats every 28–30 days
(e) Substance abuse	(v) Enlargement of the voice box in adolescent boys

Ans: 

Column A	Column B
(a) Adam’s Apple	(v) Enlargement of the voice box in adolescent boys
(b) Menstrual cycle	(iv) A process in adolescent girls that repeats every 28–30 days
(c) Mood swings	(i) Sudden change in emotion without a clear reason
(d) Sanitary pads	(ii) Products used to maintain hygiene during menstruation
(e) Substance abuse	(iii) Addiction to harmful things like tobacco or alcohol