Hormones — Paper 2 · IGCSE Biology (9-1) 0970

24 Which hormone is involved in the conversion of glucose to glycogen? A adrenaline B insulin C oestrogen D testosterone

1 marks

Answer: B

This question in 0970/21 May/June 2018

27 Which hormone may be used to improve sporting performance? A FSH B LH C oestrogen D testosterone

1 marks

Answer: D

This question in 0970/21 May/June 2018

24 A student used two seedlings X and Y to investigate phototropism. The diagram shows their investigation. light light piece of glass piece of glass X X at the start of after some time the experiment no curvature towards light light light piece of glass piece of glass Y Y at the start of after some time the experiment gives curvature towards light Which statement explains the difference in results between X and Y? A The piece of glass destroyed the auxin on the shaded side of the seedling. B The piece of glass destroyed the auxin on the side of the seedling facing the light. C The piece of glass in X stopped the auxin travelling down the shaded side of the seedling. D The piece of glass in X stopped the auxin travelling down the side of the seedling facing the light.

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2018

25 What is a response to a low concentration of glucose in the blood? A Glucagon will cause the body to convert glucose into glycogen. B Glucagon will cause the body to convert glycogen into glucose. C Insulin will cause the body to convert glucose into glycogen. D Insulin will cause the body to convert glycogen into glucose.

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2018

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

27 A patient is injected with adrenaline. Which graph shows the expected changes to pulse rate and blood glucose concentration? A B pulse blood glucose pulse blood glucose rate concentration rate concentration 0 0.5 1 1.5 2 0 0.5 1 1.5 2 time after injection / minutes time after injection / minutes C D pulse blood glucose pulse blood glucose rate concentration rate concentration 0 0.5 1 1.5 2 0 0.5 1 1.5 2 time after injection / minutes time after injection / minutes key pulse rate blood glucose concentration

1 marks

Answer: C

This question in 0970/21 May/June 2019

27 Three plant shoots have their tips removed. Two of the shoots have a piece of agar gel placed on them, as shown in the diagram. The agar gel contains auxin. The shoots are exposed to light coming from one direction. agar gel containing auxin light plant plant plant shoot shoot shoot What is the appearance of the shoots after two days? A B C D

1 marks

Answer: A

This question in 0970/22 May/June 2019

24 The diagram shows the shoot and root of a seedling responding to gravity. Which row shows where the auxin accumulates and the effect of this in the shoot? accumulates effect A lower surface inhibits cell elongation B lower surface promotes cell elongation C upper surface inhibits cell division D upper surface promotes cell division

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2019

26 The liver and the pancreas work together to control the concentration of glucose in the blood. Which statement is correct? A The liver converts the small molecule glucose to the large molecule glucagon. B The liver releases the hormone insulin when blood glucose levels are too high. C The pancreas does not respond to an increase in blood glucose levels. D The pancreas responds to a fall in blood glucose by increasing the release of the hormone glucagon.

1 marks

Answer: D

This question in 0970/21 May/June 2020

25 Which glands are endocrine glands? A adrenal, pancreas, testes B adrenal, ovaries, salivary C ovaries, sweat, testes D pancreas, salivary, sweat

1 marks

Answer: A

This question in 0970/22 May/June 2020

26 What are the effects of insulin and adrenaline on the concentration of blood glucose? effect of insulin effect of adrenaline on blood glucose on blood glucose concentration concentration A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0970/22 May/June 2020

27 What is the effect of adrenaline on pulse rate and blood glucose concentration? pulse rate blood glucose A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0970/21 May/June 2021

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

26 What is the result of the release of adrenaline? blood glucose breathing rate concentration A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0970/22 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

24 Which effects does adrenaline have on blood glucose concentration and pulse rate? blood glucose pulse rate concentration A increases reduces B increases increases C reduces reduces D reduces increases

1 marks

Answer: B

This question in 0970/22 May/June 2022

25 The concentration of glucose in the blood is controlled by negative feedback. When blood glucose concentration falls too low, the … 1 … releases the hormone … 2 … . This hormone causes cells to break down … 3 … to glucose, which is released into the blood. Which words correctly complete gaps 1, 2 and 3? 1 2 3 A liver glucagon glycogen B liver glycogen glucagon C pancreas glucagon glycogen D pancreas glycogen glucagon

1 marks

Answer: C

This question in 0970/22 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

24 What is a response to a low concentration of glucose in the blood? A Glucagon will cause the body to convert glucose into glycogen. B Glucagon will cause the body to convert glycogen into glucose. C Insulin will cause the body to convert glucose into glycogen. D Insulin will cause the body to convert glycogen into glucose.

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2022

25 Which hormone causes an increase in breathing rate, an increase in heart rate and the widening of pupils? A insulin B adrenaline C oestrogen D testosterone

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2022

27 Which hormones can increase blood glucose concentration? A adrenaline and insulin B adrenaline and glucagon C adrenaline only D glucagon only

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2023

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

28 What would lead to a decrease in blood glucose concentration? A increased release of adrenaline B increased release of amylase C increased release of glucagon D increased release of insulin

1 marks

Answer: D

This question in 0970/21 May/June 2024

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 Which statements about hormones are correct? 1 Adrenaline decreases pupil diameter. 2 Adrenaline increases pupil diameter. 3 Insulin decreases blood glucose concentration. 4 Insulin increases blood glucose concentration. A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2024

23 The diagram shows the positions of two endocrine glands in the human body. endocrine glands kidneys What is a response of the body to the hormone released from these glands? A a decrease in heart rate B a decrease in blood glucose concentration C an increase in pupil diameter D the development of secondary sexual characteristics

1 marks

Answer: C

This question in 0970/21 May/June 2025

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

25 Which organ produces glucagon? A adrenal gland B liver C ovary D pancreas

1 marks

Answer: D

This question in 0970/22 May/June 2025

20 Which effect does adrenaline have on blood glucose concentration and pulse rate? blood glucose pulse rate concentration A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0970/22 Oct/Nov 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