Assertion: The thyroid gland is composed of f | vedclass

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Question

(B) The thyroid gland is indeed composed of follicles and stromal tissue. The follicles are lined by follicular cells which synthesize the hormones $T

Vedclass · Accepted Answer

Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

Vedclass · Answer

(B) The thyroid gland is indeed composed of follicles and stromal tissue. The follicles are lined by follicular cells which synthesize the hormones $T_3$ (triiodothyronine) and $T_4$ (thyroxine).Iodine is an essential element required for the synthesis of these thyroid hormones. $A$ deficiency of iodine in our diet results in hypothyroidism and enlargement of the thyroid gland (goitre).While both statements are scientifically true,the reason (the requirement of iodine) does not explain why the gland is composed of follicles and stromal tissue (which is a structural description). Therefore,the reason is not the correct explanation of the assertion.

Assertion: The thyroid gland is composed of follicles and stromal tissue.
Reason: Iodine is essential for the normal rate of hormone synthesis in the thyroid.

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Assertion: The thyroid gland is composed of follicles and stromal tissue.Reason: Iodine is essential for the normal rate of hormone synthesis in the thyroid.