Sample Questions — Mechanism of hormones action
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MCQ
What is the name of the complex formed when a hormone binds to its receptor?
✅ Correct Answer: A
- The initial interaction between a hormone and receptor forms a hormone-receptor complex.
MCQ
Assertion (A): Steroid hormones interact with intracellular receptors.
Reason (R): They directly regulate gene expression through the hormone-receptor complex.
✅ Correct Answer: A
- Steroid and thyroid hormones bind intracellularly, influencing DNA-level gene regulation.
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MCQ
Which hormones mainly regulate physiological effects through genome interaction?
✅ Correct Answer: B
- Steroid hormones enter cells and act via nuclear receptors influencing gene expression.
MCQ
Which class of hormone receptors regulates gene expression?
✅ Correct Answer: A
- Steroid and iodothyronine hormones use intracellular receptors to regulate gene expression.
MCQ
Which of the following is a correct pair based on receptor interaction?
✅ Correct Answer: D
- Peptide hormones bind to membrane receptors → activate second messengers like cAMP. Others are false pairs.
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