Ncert Exercises & Solutions

29. Rahul exercises regularly by visiting a gymnasium. Of late he is gaining weight. What could be the reason? Choose the correct answer and elaborate.

(a) Rahul has gained weight due to accumulation of fats in body

(b) Rahul has gained weight due to increased muscle and less of fat

(d) Rahul has gained weight because he is accumulating water in the body

(b) Rahul has gained weight because his muscle shape has changed. Regular exercise increase the body muscle as there is an enlargement of muscles due to increase in the amount of sarcoplasm and mitochondria and the strength he to developed led him gain the mass and size of body muscle and reduction in fat content.

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