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Science · 2025 · 3 marks
CBSE 2025 · Region 1 · Set 2 · Q33
(a) Name the glands that secrete: (i) Adrenaline (ii) Thyroxin (b) Explain with example how the timing and amount of hormone released are regulated…
(a)
Name the glands that secrete :
(i)
Adrenaline
(ii)
Thyroxin
(b)
Explain with example how the timing and amount of hormone released are regulated in the human body.
Marking-scheme solution
(a) Gland that secretes
(i) Adrenal gland
(ii) Thyroid gland
(b) If the sugar level in blood rises it is detected by cells of pancreas which responds to produce more insulin to lower blood sugar level.
As the blood sugar level falls it is detected by cells of pancreas and insulin secretion is reduced.
SECTION D
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.