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3.2 Coordination and control – the endocrine system

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Question 25
H

During pregnancy, the concentration of progesterone in the blood stays high. Which statement explains why no new eggs mature during pregnancy?

[1]
A

Progesterone causes the uterus lining to break down, so eggs are lost.

B

Progesterone stimulates LH release, so eggs are released before they mature.

C

Progesterone stimulates oestrogen release, which causes eggs to be destroyed.

D

Progesterone inhibits FSH release, so no egg is stimulated to mature.

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3.2 Coordination and control – the endocrine system Questions

  1. GCSE
  2. /Biology
  3. /3.2 Coordination and control – the endocrine system

84 exam-style questions on OCR GCSE Biology 3.2 Coordination and control – the endocrine system, covering 3.2.1 Principles of hormonal coordination and control, 3.2.2 Roles of thyroxine and adrenaline, 3.2.3 Hormones in human reproduction, 3.2.4 Interactions of reproductive hormones, 3.2.5 Hormones in contraception, 3.2.6 Hormones in reproductive technologies, 3.2.7 Plant hormones in growth and coordination, 3.2.8 Effects of plant hormones, and 3.2.9 Uses of plant hormones. Each one has a worked solution and a mark scheme showing where the marks go.

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