Blood — Paper 1 · IGCSE Biology (9-1) 0970

18 The diagrams show some components of the blood of a mammal. Which component causes the blood to start clotting? A B C D

1 marks

Answer: D

This question in 0970/11 May/June 2018

13 What is the result of a diet lacking iron? A bleeding gums B poor wound healing C reduced number of red blood cells D weak bones and teeth

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2018

20 The diagram shows one way the body defends itself against pathogens. bacteria white blood cell What is the name of this defence mechanism? A antibody production B egestion C phagocytosis D vaccination

1 marks

Answer: C

This question in 0970/11 May/June 2019

5 Which type of cell transports oxygen? A ciliated B nerve C palisade mesophyll D red blood

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2020

20 Some functions of blood are listed. 1 antibody production 2 blood clotting 3 oxygen transport 4 phagocytosis What are functions of white blood cells? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2020

21 What is a function of some white blood cells? A to carry glucose B to carry oxygen C to produce antibiotics D to produce antibodies

1 marks

Answer: D

This question in 0970/11 May/June 2021

20 The diagram shows the four components of blood separated into layers. Which component is labelled with the correct function? A plasma – production of antibodies B platelets – blood clotting D white blood cells – C red blood cells – transport of oxygen phagocytosis

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2021

20 Which process is slower than normal in a person with very few platelets? A antibody formation B blood clotting C oxygen transport D phagocytosis

1 marks

Answer: B

This question in 0970/11 May/June 2022

20 Which process is slower than normal in a person with very few platelets? A antibody formation B blood clotting C oxygen transport D phagocytosis

1 marks

Answer: B

This question in 0970/12 May/June 2022

14 The haemoglobin concentration in the blood of a person is 80 g / dm3. The accepted normal concentration is 120 g / dm3 or above. Which substance may be lacking in their diet? A calcium B fats C fibre D iron

1 marks

Answer: D

This question in 0970/11 May/June 2023

19 In which row is the component of blood correctly linked to its function? blood component function A plasma transport of carbon dioxide B platelets phagocytosis C red blood cells antibody production D white blood cells blood clotting

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2023

23 The diagrams show four different types of cells. Which cell contains haemoglobin? A B NOT TO SCALE C D

1 marks

Answer: C

This question in 0970/11 May/June 2024

24 The photomicrograph shows two blood cells. What is the function of these cells? A to carry out phagocytosis B to produce antibodies C to transport oxygen D to transport vitamins

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2024

4 Which type of cell transports oxygen? A ciliated cell B neurone C palisade mesophyll cell D red blood cell

1 marks

Answer: D

This question in 0970/11 May/June 2025

14 Why is iron an important component of the human diet? A Iron is needed to make haemoglobin. B Iron is needed to prevent rickets. C Iron is needed to prevent scurvy. D Iron is needed to strengthen teeth.

1 marks

Answer: A

This question in 0970/11 May/June 2025

14 What is a function of red blood cells? A production of antibodies B transport of glucose C transport of hormones D transport of oxygen

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2025