Cambridge IGCSE · Biology (0610)

Heart: Practice Questions

5 multiple-choice questions marked as you go, and 4 written questions with worked solutions. All on Heart.

9 questions20 marksFree, no account

Question 1

1 mark

Which method is commonly used to monitor heart activity by measuring electrical impulses?

Question 2

1 mark

During vigorous exercise, the heart rate increases significantly. What is the main purpose of this physiological response?

Question 3

1 mark

Which statement best explains the physiological advantage of the double circulation system found in mammals?

Question 4

1 mark

Which chamber of the heart pumps deoxygenated blood to the lungs?

Question 5

1 mark

Why is the muscular wall of the left ventricle thicker than that of the right ventricle?

Question 6

2 marks

Identify one common method used to monitor the activity of the heart.

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Question 7

4 marks

Explain why the muscle wall of the left ventricle in the mammalian heart is significantly thicker than that of the right ventricle.

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Question 8

2 marks

Name the two main blood vessels that carry blood away from the heart to the body and from the body back to the heart.

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Question 9

7 marks

(a) Describe the path of blood through the human heart, starting from the vena cava. Name the four chambers and the major blood vessels involved, indicating whether the blood is oxygenated or deoxygenated at each stage.

(b) Explain why the muscle wall of the left ventricle is significantly thicker than that of the right ventricle, and also thicker than the atrial walls.

(c) Outline the function of the one-way valves in the heart, specifically mentioning their locations and how they ensure unidirectional blood flow.

(d) Describe the role of coronary arteries in the mammalian heart.

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