In which situation should the role of thyroxine be considered first?
Answer and explanation
Correct answer: An abnormal rate of metabolism and growth
Thyroxine is an endocrine hormone that helps regulate metabolism and supports normal growth and development. Thus an unusual metabolic rate or abnormal growth is the situation in which its role should be considered first, making option A correct. Pulling the hand away from a hot object is a rapid nervous reflex. Tendril coiling is a plant growth response, and pollen-tube movement toward chemicals is chemotropism; neither primarily indicates thyroxine action.
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What is the correct answer to this question?
An abnormal rate of metabolism and growth
Why is this the correct answer?
Thyroxine is an endocrine hormone that helps regulate metabolism and supports normal growth and development. Thus an unusual metabolic rate or abnormal growth is the situation in which its role should be considered first, making option A correct. Pulling the hand away from a hot object is a rapid nervous reflex. Tendril coiling is a plant growth response, and pollen-tube movement toward chemicals is chemotropism; neither primarily indicates thyroxine action.
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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