Why do endocrine glands release their hormones directly into blood?
Answer and explanation
Correct answer: So that hormones can reach distant target organs
The governing concept is endocrine coordination. Endocrine glands are ductless, so their hormones are released into the surrounding blood. The circulatory system transports these chemical messengers throughout the body, allowing them to reach distant target organs that possess suitable receptors. Thus option A is correct. Drying on skin, digesting food in the mouth, or remaining only in bones is not the normal function or route of endocrine hormones, so B, C, and D are distractors.
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What is the correct answer to this question?
So that hormones can reach distant target organs
Why is this the correct answer?
The governing concept is endocrine coordination. Endocrine glands are ductless, so their hormones are released into the surrounding blood. The circulatory system transports these chemical messengers throughout the body, allowing them to reach distant target organs that possess suitable receptors. Thus option A is correct. Drying on skin, digesting food in the mouth, or remaining only in bones is not the normal function or route of endocrine hormones, so B, C, and D are distractors.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Endocrine system.
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