Why do target organs respond only to specific hormones?
Answer and explanation
Correct answer: Because their cells have receptors that recognize that hormone
The governing concept is hormone specificity through receptors. Hormones may circulate widely in the blood, but they produce a response only in cells that possess the appropriate receptor and the biochemical machinery linked to it. The receptor recognizes the hormone’s shape and starts a cellular response. Therefore A is correct. Blood does reach target organs, hormones are not universally excluded from organs, and the brain does not always destroy them, so B, C, and D are false.
Frequently asked questions
What is the correct answer to this question?
Because their cells have receptors that recognize that hormone
Why is this the correct answer?
The governing concept is hormone specificity through receptors. Hormones may circulate widely in the blood, but they produce a response only in cells that possess the appropriate receptor and the biochemical machinery linked to it. The receptor recognizes the hormone’s shape and starts a cellular response. Therefore A is correct. Blood does reach target organs, hormones are not universally excluded from organs, and the brain does not always destroy them, so B, C, and D are false.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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