Excretion in humans — Paper 1 · IGCSE Biology (9-1) 0970

22 The diagram shows the excretory system. X What is structure X? A bladder B kidney C ureter D urethra

1 marks

Answer: D

This question in 0970/11 May/June 2018

20 As we breathe out, … 1 … is … 2 … through the lungs. Which words correctly complete gaps 1 and 2? 1 2 A carbon dioxide excreted B carbon dioxide respired C oxygen excreted D oxygen respired

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2018

21 A person carries out vigorous exercise without drinking any water. What would happen to the concentration and volume of the person’s urine immediately after exercise? urine urine concentration volume A decrease decrease B decrease increase C increase decrease D increase increase

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2018

25 Which substances are excreted by humans? caer urea urine A Jv J J B Jv x J Cc Jv J x D x J J key JV = involved X = not involved

1 marks

Answer: A

This question in 0970/11 May/June 2019

25 A patient has dye injected into the blood supply to his kidneys. The dye appears in his excretory system as shown. key dye no dye Which part is blocked? A the kidney B the ureter C the bladder D the urethra

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2019

21 Which row describes the urine produced by a person who is exercising on a hot day? concentration volume of urine of urine A concentrated large B concentrated small C dilute large D dilute small

1 marks

Answer: B

This question in 0970/11 May/June 2020

21 The diagram shows the human excretory system. Which labelled structure is the ureter? A B C D

1 marks

Answer: C

This question in 0970/12 May/June 2020

24 The amount of urea in the blood increases as it passes through organ X. What is organ X? A heart B kidney C liver D pancreas

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2020

19 What are the main vessels carrying blood to and from the kidney? to kidney from kidney A pulmonary artery pulmonary vein B pulmonary vein pulmonary artery C renal artery renal vein D renal vein renal artery

1 marks

Answer: C

This question in 0970/11 May/June 2021

25 Which statement about urea is correct? A Urea is formed from excess amino acids in the kidneys and excreted by the liver. B Urea is formed from excess glucose in the liver and egested by the kidneys. C Urea is formed from excess glucose in the kidneys and egested by the liver. D Urea is formed from excess amino acids in the liver and excreted by the kidneys.

1 marks

Answer: D

This question in 0970/11 May/June 2021

1 All living things can remove toxic materials and other substances that are in excess of requirements. What is this process called? A egestion B excretion C nutrition D respiration

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2021

25 The diagram shows part of the excretory system of a female mammal. X What is tube X? A ureter B urethra C uterus D vein

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2021

25 A person produced 1.75 dm3 of urine on a cool day. How will the volume and concentration of urine change on a hot day, if fluid intake is the same as on the cool day? volume concentration A increases decreases B increases increases C decreases decreases D decreases increases

1 marks

Answer: D

This question in 0970/11 May/June 2022

15 Which process involves the removal of material from the rectum? A egestion B ingestion C chemical digestion D mechanical digestion

1 marks

Answer: A

This question in 0970/12 May/June 2022

25 Which organ excretes urea? A kidney B liver C lungs D pancreas

1 marks

Answer: A

This question in 0970/12 May/June 2022

25 A person eats foods containing proteins. Some of the amino acids in the proteins are converted to urea and excreted from the body. 1 2 3 proteins amino acids urea urine Which row identifies the sites of processes 1, 2 and 3? site of process 1 site of process 2 site of process 3 A stomach liver kidney B liver kidney bladder C stomach kidney liver D liver stomach kidney

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2022

25 Which part of the body excretes urea, excess water and excess ions? A gall bladder B heart C kidney D lungs

1 marks

Answer: C

This question in 0970/11 May/June 2023

26 The diagram shows the kidneys and associated organs. Which label is the ureter? A B C D

1 marks

Answer: C

This question in 0970/11 May/June 2023

1 Living animals release carbon dioxide. This is an example of which life process? A excretion B movement C nutrition D sensitivity

1 marks

Answer: A

This question in 0970/12 May/June 2023

25 The diagram shows the human body and some of its organs. Which structure removes urea from the blood? A B C D

1 marks

Answer: C

This question in 0970/12 May/June 2023

25 Which row shows an organ and the substance it excretes? substance organ excreted A bladder water B kidney ions C lung oxygen D urethra urea

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2023

27 Which diagram of the excretory system is labelled correctly? A B bladder bladder ureter urethra kidney kidney urethra ureter C D kidney kidney ureter urethra bladder bladder urethra ureter

1 marks

Answer: C

This question in 0970/11 May/June 2024

24 Which organ is responsible for the excretion of urea in the human body? A D C B

1 marks

Answer: A

This question in 0970/12 May/June 2024

15 The diagram shows the digestive system. Where does egestion take place? A B C D

1 marks

Answer: D

This question in 0970/11 May/June 2025

23 Which organ excretes urea? A bladder B kidney C lung D stomach

1 marks

Answer: B

This question in 0970/11 May/June 2025

22 The diagram shows some of the organs involved in excretion. Which label is a ureter? A B D C

1 marks

Answer: D

This question in 0970/12 May/June 2025

18 In humans, a ureter and a urethra are two structures involved in excretion. Which comparison between a ureter and a urethra is correct? A Only fluid passing through a ureter contains excess mineral ions and water. B Only fluid passing through a urethra contains urea. C Only a ureter is directly attached to the bladder. D Only a ureter is directly attached to the kidney.

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2025