CBSE Class 8 Science Reaching the age of adolescence

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CBSE Class 8 Science Reaching the age of adolescence. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the examinations. 

Reaching the age of adolescence.

Q1. what is adolescence.?

A1. It is the period of life when the body undergoes changes, leading to reproductive maturity.

Q2. Define puberty.

A2. The stage when human body becomes sexually mature.

Q3. Enlist the changes occurring in males and females during puberty.

 class_8_science_concept_3

Q4. What is adam’s apple?

A4. The growing voice box in boys can be seen as a protruding part of the throat called adam’s apple.

Q5. What are secondary sexual characters?

A5. These are the features that help to distinguish males from females.

Q6. Define the following terms.

1. Hormone- they are chemical messengers for various processes and activities in the body

2. Endocrine glands- the ductless glands which secrete hormones directly into blood.

Q7. What is the role of hormones in initiating reproductive function?

A7. 1. Hormones from pituitary stimulate testes and ovaries to release testosterone and estrogen respectively.

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