Same chapter3 marksDifficulty: Medium
What is a target organ? Give two examples of a hormone and its target organ.
Endocrine System
3 marksDifficulty: Medium
Name the hormone secreted by the thyroid gland and state one effect each of its oversecretion and undersecretion in an adult.
Original Khojo Papers practice question — not from a past board paper.
Answer
The thyroid secretes thyroxine. Oversecretion causes exophthalmic goitre, with a raised metabolic rate, loss of weight and protruding eyeballs. Undersecretion causes myxoedema, with a lowered metabolic rate, gain in weight and slowed mental activity.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Undersecretion in a child causes cretinism, with stunted growth and mental retardation.
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