Biology
Assertion (A): Goitre is a kind of a nutritional deficiency disease as well as metabolic disease.
Reason (R): Goitre is caused due to the deficiency of iron which is also required for the synthesis of thyroxine by 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.
Diseases
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Answer
A is True and R is False.
Reason — Goitre is an enlargement of the thyroid gland. It is caused by a deficiency of iodine, which is a nutritional deficiency. Since the thyroid controls metabolism through thyroxine production, goitre is also classified as a metabolic disease.
Goitre is caused due to a deficiency of iodine, not iron. Iodine is essential for the synthesis of thyroxine, the thyroid hormone.
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