9.2· 21 questions · 21 marks · 25 min · 2018–2025· Multiple choice
Every Cambridge IGCSE Biology (9-1) Paper 1 question on heart, laid out as 8 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.

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8 / 8Answers below. Sit the paper first if you are practising.
Pastlit
Biology (9-1) 0970 · Heart — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | B | 1 | 0970/11 May/June 2018 |
| 2 | D | 1 | 0970/12 Oct/Nov 2018 |
| 3 | C | 1 | 0970/12 Oct/Nov 2019 |
| 4 | A | 1 | 0970/11 May/June 2020 |
| 5 | B | 1 | 0970/11 May/June 2020 |
| 6 | A | 1 | 0970/12 May/June 2020 |
| 7 | C | 1 | 0970/12 May/June 2020 |
| 8 | D | 1 | 0970/12 Oct/Nov 2020 |
| 9 | D | 1 | 0970/12 Oct/Nov 2021 |
| 10 | B | 1 | 0970/11 May/June 2022 |
| 11 | A | 1 | 0970/12 May/June 2022 |
| 12 | D | 1 | 0970/12 Oct/Nov 2022 |
| 13 | B | 1 | 0970/11 May/June 2023 |
| 14 | C | 1 | 0970/11 May/June 2023 |
| 15 | B | 1 | 0970/12 May/June 2023 |
| 16 | C | 1 | 0970/12 Oct/Nov 2023 |
| 17 | D | 1 | 0970/11 May/June 2024 |
| 18 | D | 1 | 0970/12 Oct/Nov 2024 |
| 19 | C | 1 | 0970/11 May/June 2025 |
| 20 | B | 1 | 0970/12 May/June 2025 |
| 21 | C | 1 | 0970/12 May/June 2025 |
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
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
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
15 Which blood vessel carries blood to the muscle of the heart? A coronary artery B pulmonary artery C renal vein D vena cava
1 marks
Answer: A
16 The diagram shows a section through the heart and its blood vessels. X Which row gives the vessel name and the direction of blood flow in vessel X? vessel name direction of blood flow A aorta towards the lungs B pulmonary artery towards the lungs C pulmonary artery away from the lungs D vena cava away from the lungs
1 marks
Answer: B
15 Which blood vessel carries blood to the muscle of the heart? A coronary artery B pulmonary artery C renal vein D vena cava
1 marks
Answer: A
16 The diagram shows the human heart and main blood vessels. lungs X rest of body What is the blood vessel labelled X? A aorta B pulmonary artery C pulmonary vein D vena cava
1 marks
Answer: C
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
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
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
19 Which row correctly links the blood vessels with their functions? carries blood to carries blood from carries blood from carries blood from the right atrium the right ventricle the lungs to the the left ventricle to from the body to the lungs left atrium the body A vena cava pulmonary artery pulmonary vein aorta B aorta pulmonary vein pulmonary artery vena cava C aorta pulmonary artery pulmonary vein vena cava D vena cava pulmonary vein pulmonary artery aorta
1 marks
Answer: A
19 The diagram shows the outside of a human heart. Which structure is a coronary artery? B A C D
1 marks
Answer: D
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
20 The diagram shows a section through the heart. Which part is the septum? B C A D
1 marks
Answer: C
19 The diagram shows the human heart. Which label shows the left ventricle? D A B C
1 marks
Answer: B
18 What ensures the one-way flow of blood in the human circulatory system? A capillaries B muscles C valves D ventricles
1 marks
Answer: C
22 What are methods for monitoring the activity of the heart? measuring listening to sounds ECG pulse rate of valves closing A ✓ ✗ ✗ key B ✗ ✓ ✓ ✓= yes C ✓ ✗ ✓ ✗= no D ✓ ✓ ✓
1 marks
Answer: D
28 What is an effect of adrenaline secretion? A decreased breathing rate B decreased pupil diameter C development of secondary sexual characteristics D increased heart rate
1 marks
Answer: D
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
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
18 Which blood vessel transports blood from the lungs to the heart? A aorta B pulmonary artery C pulmonary vein D vena cava
1 marks
Answer: C