Circulatory systems — Paper 1 · IGCSE Biology (9-1) 0970

17 The diagram shows the human heart. P Q S R In which order does blood pass through the chambers during a complete circuit of the body after it returns from the lungs? A Q → R → S → P B Q → R → P → S C P → S → Q → R D P → S → R → Q

1 marks

Answer: B

This question in 0970/11 May/June 2018

17 The diagram shows a circulatory system. 2 3 capillaries of capillaries of the the lungs heart rest of the body 1 4 Which vessels carry oxygenated blood? A 1 and 2 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2018

18 The diagram shows a section of a human vein. X What is the function of the part labelled X? A to make sure the blood flows to the heart B to make sure the blood flows to the kidneys C to make sure the blood flows to the brain D to make sure the blood flows to the lungs

1 marks

Answer: A

This question in 0970/11 May/June 2019

16 The diagram shows a vertical section through a human heart. X Y What are X and Y? X Y A left atrium right ventricle B left ventricle right atrium C right atrium left ventricle D right ventricle left atrium

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2019

17 Which factor increases the risk of developing coronary heart disease? A low fat diet B regular exercise C relaxation D smoking

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2019

19 What ensures that blood flows in one direction in the human circulatory system? A diffusion of carbon dioxide B diffusion of oxygen C thick walled arteries D valves

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2020

22 The diagram shows some of the structures in a human lung. Where is the carbon dioxide concentration highest? from pulmonary artery C B to pulmonary vein D A

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2020

5 The diagram shows some of the blood vessels and other structures in the human body. The blood vessels shown are all parts of the same A cell. B organ. C organ system. D tissue.

1 marks

Answer: C

This question in 0970/11 May/June 2021

19 The diagram shows a section through a mammalian heart. Which part carries blood directly from the lungs? B C A D

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2021

19 The diagram shows a cross-section through the heart of a mammal. P Q R Which row correctly identifies P, Q and R? P Q R A valve right atrium right ventricle B left atrium valve left ventricle C left ventricle left atrium valve D right atrium valve right ventricle

1 marks

Answer: B

This question in 0970/11 May/June 2022

19 Which statements describe how the structures in the circulatory system function? 1 a muscular pump to push blood into vessels 2 valves to ensure one-way blood flow 3 veins to take blood away from the heart 4 vessels to return blood to the heart A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: B

This question in 0970/11 May/June 2023

19 The diagram shows the human heart. Which label shows the left ventricle? D A B C

1 marks

Answer: B

This question in 0970/12 May/June 2023

21 Which statement describes the circulation of blood in the human body? A Blood is pumped away from the heart by the atria. B Blood is pumped away from the heart through arteries. C Blood is pumped away from the heart through veins. D Blood is pumped to the heart through capillaries.

1 marks

Answer: B

This question in 0970/12 May/June 2024

19 The diagram shows the blood vessels between the lungs, heart and kidneys in a human. The arrows indicate the direction of blood flow. Which blood vessel is labelled correctly? A B lungs coronary artery pulmonary artery heart D aorta kidneys C renal vein

1 marks

Answer: C

This question in 0970/11 May/June 2025

17 The diagram shows a simplified circulatory system in humans. Which organ represents the pump in this circulatory system? organ A key organ B direction of blood flow organ C organ D

1 marks

Answer: B

This question in 0970/12 May/June 2025