Biology
Assertion (A): The deficiency of iodine leads to goitre.
Reason (R): Iodine is required for the proper growth and development of the thyroid gland.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Nutrition
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Answer
Both A and R are True.
Reason — Goitre is an abnormal enlargement of the thyroid gland, caused by iodine deficiency. Without iodine, the thyroid gland cannot produce enough thyroid hormones, leading to gland enlargement. Iodine is essential for the production of thyroid hormones. These hormones regulate growth, metabolism and development all of which are essential for the proper functioning of the thyroid gland.
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