NEET Biology question

What is correct to say about the hormone action in humans? [AIPMT 2012]

(A)Glucagon is secreted by β-cells of the islets of Langerhans and stimulates glycogenolysis
(B)Secretion of thymosin is stimulated with aging
(C)In females, FSH binds with specific receptors on the ovarian cell membrane, increasing the secretion of estrogenCorrect
(D)FSH directly stimulates secretion of estrogen and progesterone without using a membrane receptor

Answer: (C)

Solution

Glucagon is secreted by α-cells, not β-cells, making (a) incorrect; thymosin secretion actually declines, rather than being stimulated, with aging, making (b) incorrect; and FSH, being a peptide hormone, cannot act without

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Question ID VK-129057