NEET Zoology Hormone Action Mechanism MCQ Question
Which combination of statements correctly describes hormone action mechanisms?
Peptide hormones interact with membrane-bound receptors generating second messengers. 2. Steroid hormones usually enter the target cell and regulate gene expression.
All hormones can enter target cells regardless of their chemical nature. 2. Hormones that act through second messengers directly alter DNA.
Iodothyronines do not interact with intracellular receptors. 2. Glucocorticoids primarily cause changes in cellular metabolism without affecting gene expression.
Amino-acid derivative hormones only act on membrane-bound receptors. 2. Peptide hormones typically regulate gene expression directly.
Correct Answer
Detailed Explanation
Peptide hormones interact with membrane-bound receptors to generate second messengers, while steroid hormones typically enter the cell and regulate gene expression, as stated in the context provided.
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