If hormone receptors of a target cell change, what result is possible?
Answer and explanation
Correct answer: The effect may decrease even when the hormone is present
The governing concept is receptor-dependent cell signalling. A hormone produces its effect only when it binds effectively to the appropriate receptor. If the receptor changes shape, number, or binding ability, the hormone may bind poorly and the cellular response can weaken even though the hormone concentration is normal. Thus option A is correct. Hormones do not turn into nerve cells, geotropism does not begin in blood, and receptor changes in one target cell cannot stop respiration in all plants.
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What is the correct answer to this question?
The effect may decrease even when the hormone is present
Why is this the correct answer?
The governing concept is receptor-dependent cell signalling. A hormone produces its effect only when it binds effectively to the appropriate receptor. If the receptor changes shape, number, or binding ability, the hormone may bind poorly and the cellular response can weaken even though the hormone concentration is normal. Thus option A is correct. Hormones do not turn into nerve cells, geotropism does not begin in blood, and receptor changes in one target cell cannot stop respiration in all plants.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
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