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7.1 Hormones and coordination

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Question 26
H

A person has a damaged thyroid gland that cannot respond to TSH. Their hypothalamus and pituitary gland function normally.

Which pattern is most likely?

[1]
A

Low thyroxine, high TRH and high TSH.

B

High thyroxine, low TRH and low TSH.

C

High thyroxine, high TRH and high TSH.

D

Low thyroxine, low TRH and low TSH.

Markscheme

7.1 Hormones and coordination Questions

  1. GCSE
  2. /Biology
  3. /7.1 Hormones and coordination

42 exam-style questions on Edexcel GCSE Biology 7.1 Hormones and coordination, covering 7.1.1 Endocrine glands and hormone transport, 7.1.2 Adrenalin and fight or flight, and 7.1.3 Thyroxine and negative feedback. Each one has a worked solution and a mark scheme showing where the marks go.

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