Why do hormones show their effect only on target organs?
Answer and explanation
Correct answer: Target organ cells have specific receptors for them
The governing concept is receptor-specific action. Hormones are transported through the bloodstream and may reach many tissues, but they produce a response only where cells contain the matching receptor. The hormone binds to that receptor and initiates a specific cellular change, so option A is correct. Hormones do not destroy all cells, are not restricted to bones, and generally do enter and circulate in the blood; therefore options B, C, and D are incorrect.
Frequently asked questions
What is the correct answer to this question?
Target organ cells have specific receptors for them
Why is this the correct answer?
The governing concept is receptor-specific action. Hormones are transported through the bloodstream and may reach many tissues, but they produce a response only where cells contain the matching receptor. The hormone binds to that receptor and initiates a specific cellular change, so option A is correct. Hormones do not destroy all cells, are not restricted to bones, and generally do enter and circulate in the blood; therefore options B, C, and D are incorrect.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
