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3.2 Coordination and control – the endocrine system

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Question 13
F

The combined contraceptive pill contains the hormones oestrogen and progesterone. How does the combined pill prevent pregnancy?

[1]
A

It kills sperm cells before they can reach an egg.

B

It forms a barrier so sperm cannot enter the uterus.

C

It stops FSH release, so no sperm cells are made.

D

It stops FSH release, so no eggs mature in the ovaries.

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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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