Sex hormones in humans — Paper 2 · IGCSE Biology (9-1) 0970

28 Which hormone maintains the thickness of the lining of the uterus during pregnancy? A follicle stimulating hormone (FSH) B luteinising hormone (LH) C oestrogen D progesterone

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2018

31 The graph shows the relative concentration of hormones in the blood during days 14–28 of the menstrual cycle. Which letter represents the hormone progesterone in a woman who is not pregnant? relative concentration of hormones in the blood A B C D 14 16 18 20 22 24 26 28 time / days

1 marks

Answer: A

This question in 0970/22 May/June 2019

29 There are many reasons why a woman does not become pregnant. What can be treated by a drug that increases the secretion of FSH? A inactive sperm B follicles not developing C thin uterine lining D too few sperm

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2019

29 Which hormone causes the lining of the uterus to become thick and glandular before ovulation? A adrenaline B FSH C oestrogen D progesterone

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2020

40 Which hormones can cause the feminisation of male fish? A adrenaline and progesterone B adrenaline and testosterone C oestrogen and progesterone D oestrogen and testosterone

1 marks

Answer: C

This question in 0970/21 May/June 2021

29 The diagram shows some of the events of the menstrual cycle. In which shaded zone of the cycle would progesterone levels be the highest? menstruation 28 / 1 A D the 28 days of the human 21 7 menstrual cycle B C 14 ovulation

1 marks

Answer: D

This question in 0970/21 May/June 2022

29 The graph shows the levels of two hormones during a 28-day menstrual cycle. X concentration Y of hormone 0 7 14 21 28 time / days Which hormones are represented by X and Y on the graph? X Y A FSH oestrogen B LH FSH C oestrogen progesterone D progesterone LH

1 marks

Answer: C

This question in 0970/22 May/June 2022

31 Which hormones are released by the placenta during pregnancy? A FSH and LH B FSH and progesterone C oestrogen and LH D progesterone and oestrogen

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2023

33 The graph shows the concentration of four hormones during the menstrual cycle. Which line represents progesterone? A hormone B concentration C D 0 14 28 ovulation day of cycle

1 marks

Answer: B

This question in 0970/21 May/June 2024

28 The diagram shows the changing concentrations of some hormones involved in the menstrual cycle. W hormone concentration Y 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 days Which letters identify two of the hormones? A W is FSH and Y is oestrogen. B W is LH and Y is oestrogen. C W is progesterone and Y is FSH. D W is progesterone and Y is LH.

1 marks

Answer: B

This question in 0970/21 May/June 2025

30 Which row correctly links the named process with its description? process description A menstruation release of an egg B menstruation shedding of the lining of the uterus C ovulation fusion of nuclei D ovulation start of puberty

1 marks

Answer: B

This question in 0970/22 May/June 2025

25 Which substance is a hormone that is involved in the development and regulation of male secondary sexual characteristics? A insulin B glucagon C lactase D testosterone

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2025