Q1. [2] § 6.3 HORMONES IN ANIMALS
There is a hormone which regulates carbohydrate, protein and fat metabolism in our body. Name the hormone and the gland which secretes it. Why is it important for us to have iodised salt in our diet?
Previously asked in CBSE board exam
2024 31/1/1 Q23(B)
Generated by claude-sonnet-4-6 · 2026-06-15 06:50 · grounding rag
Model Answer
Hormone: Thyroxine
Gland: Thyroid gland
Thyroxine regulates carbohydrate, protein, and fat metabolism. Iodine is essential for the thyroid gland to produce thyroxine. Deficiency of iodine leads to less thyroxine production, causing goitre (swollen neck). Hence, iodised salt ensures adequate iodine intake.
Explanation
- Examiners expect two distinct parts: naming the hormone + gland (1 mark), and explaining the need for iodised salt (1 mark).
- Key point: Iodine → thyroxine synthesis → prevents goitre. Mentioning goitre strengthens the answer.
- The source passages do not directly state this, but it is standard NCERT Chapter 7 (Control and Coordination) content that the question is based on.
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