Biology 0610 · IGCSE
Heart
91 practice questions on Heart, with worked solutions and instant marking.
The diagram shows a cross-section of the heart. Which part pumps blood into the aorta?
Feb/March 2016
Which row lists the chambers of the heart in order from the thickest walls to the thinnest walls?
Feb/March 2016
Fig. 2.1 is a diagram of the heart.
Feb/March 2017
Fig. 1.1 presents a vertical section of a human heart together with the main blood vessels.
Feb/March 2017
The diagram illustrates part of the heart. What function does the structure labelled Q perform?
Feb/March 2019
The graph illustrates the pressure changes occurring in the right atrium, right ventricle and left ventricle of a human heart as the muscle walls contract and relax. What is the pressure in the right ventricle when the left ventricle reaches its maximum pressure?
Feb/March 2019
Which individual is most likely to develop coronary heart disease?
Feb/March 2020
Which structures prevent blood from flowing in the reverse direction in the human circulatory system?
Feb/March 2021
The diagram shows a cross-section of the heart. Which chamber pumps blood to the aorta?
Feb/March 2021
Heart activity can be tracked in several ways. Fig. 3.1 presents two ECG traces: one was taken while the person was resting and the other while they were exercising. In the ECG trace recorded at rest, Fig. 3.1 marks the time taken for one heart beat.
Feb/March 2021
The graph illustrates the pressure changes occurring in the right atrium, right ventricle and left ventricle of a human heart as the muscle walls contract and relax. What is the pressure in the right ventricle when the left ventricle reaches its highest pressure?
Feb/March 2023
What causes blood to flow in only one direction in the circulatory system?
Feb/March 2024
Scientists used an ECG trace to record a student’s heart while resting and while exercising. What explains the difference between the ECG traces?
Feb/March 2024
On Fig. 2.1, mark the right ventricle with an R.
Feb/March 2024
The diagram illustrates a heart defect that some babies are born with. The arrows show the direction in which blood flows. Which statement explains why this heart defect could lead to poor growth in the baby?
Feb/March 2025
On Fig. 3.1, add a label line and the letter X to show the muscular wall of the left ventricle.
Feb/March 2025
Which chamber of the heart has the thickest muscular wall?
May/June 2016
The diagram illustrates the human heart together with some of the blood vessels attached to it. Before the blood in W arrives at Z, it must
May/June 2016
The diagram illustrates a cross-section of the human heart. Which valve is the right atrioventricular valve?
May/June 2016
The diagram presents a section through the human heart. Which valve is the right atrioventricular valve?
May/June 2016
The diagram illustrates a cross-section of the human heart. Which structure is the right atrioventricular valve?
May/June 2016
What is one way to reduce the risk of coronary heart disease?
May/June 2016
Fig. 5.1 presents the risk of coronary heart disease by age and gender.
May/June 2016
Fig. 1.1 presents the human heart together with the principal blood vessels. The roles of the parts of the heart and of some of the blood vessels are listed in Table 1.1.
May/June 2016
Every mammal has a double circulatory system. Fig. 1.1 illustrates part of the human double circulatory system.
May/June 2016
Which chamber of the heart has the thickest muscular wall?
May/June 2017
Which chamber of the heart has the thickest wall of muscle?
May/June 2017
Fig. 2.1 displays several external features of the human heart.
May/June 2017
Electrical impulses from the brain influence heart rate.
May/June 2017
Fig. 1.1 presents a diagram of the human heart. It illustrates the stage of the heartbeat when the atria contract. The blood vessels that transport blood to and from the heart are marked A to F.
May/June 2017
The diagram illustrates the human heart. In what sequence does blood move through the chambers in a complete circuit of the body after it comes back from the lungs?
May/June 2018
The diagram illustrates the human heart. After blood comes back from the lungs, in what order does it move through the chambers during one complete circuit of the body?
May/June 2018
The diagram illustrates the human heart. After blood comes back from the lungs, in what sequence does it move through the chambers during one full circuit of the body?
May/June 2018
What is the name of the part that divides the left and right ventricles of the heart?
May/June 2018
In what way does blood enter the heart?
May/June 2021
The diagram illustrates a section of the human body. Which statement about organs X and Y is correct?
May/June 2021
In what way does blood enter the heart?
May/June 2021
Use label lines and labels to show these structures on Fig. 5.1: • atrium • septum • ventricle • valve
May/June 2021
The heart’s activity can be tracked by taking the pulse rate. Two students recorded their pulse rates before, during and after exercise. The outcomes are displayed in Fig. 6.1.
May/June 2021
The diagram shows a transverse section of a mammal’s heart. Which row correctly names P, Q and R?
May/June 2022
Some people are born with a 'hole in the heart'. This happens because there is a gap in the septum, as shown. If this gap in the septum is left unrepaired, the person gets out of breath more quickly. What could explain this?
May/June 2022
In a double circulation system, what function does the right side of the heart perform?
May/June 2022
Mammals possess a double circulation. Fig. 2.1 shows a diagram of a section through the heart of a mammal. The arrows indicate the direction in which blood moves through the heart and blood vessels.
May/June 2022
The diagram depicts a cross-section of the heart. Which part represents the septum?
May/June 2023
The diagram illustrates the human heart. Which label indicates the left ventricle?
May/June 2023
The diagram shows part of the human heart. Which label shows the right ventricle?
May/June 2023
The diagram shows a cross-section through the heart. Which part is the septum?
May/June 2023
The diagram illustrates the human heart. Which label indicates the left ventricle?
May/June 2023
The diagram presents part of the human heart. Which label shows the right ventricle?
May/June 2023
Fig. 3.1 shows a section through a human heart.
May/June 2023
What methods are used to monitor heart activity?
May/June 2024
What structure in the heart divides the oxygenated blood from the deoxygenated blood?
May/June 2024
The diagram illustrates a simplified human circulatory system. Which organ acts as the pump in this circulatory system?
May/June 2025
What structure in the heart divides oxygenated blood from deoxygenated blood?
May/June 2025
Which heart chamber takes blood directly from the pulmonary vein?
Oct/Nov 2016
The graph illustrates how several minutes of vigorous exercise affect heart rate. At what point does the person cease doing the exercise?
Oct/Nov 2016
What occurs as the left ventricle contracts?
Oct/Nov 2016
The diagram shows a cross-section through the heart. Which valve is an atrioventricular valve on the right side of the heart?
Oct/Nov 2016
The graph indicates the thickness of the muscular wall in each of the heart’s four chambers. Which chamber is the right ventricle?
Oct/Nov 2016
Doctors may use an ECG machine to monitor a patient’s heart rate. Fig. 3.1 presents the ECG trace of a healthy man. The key indicates one heartbeat.
Oct/Nov 2016
On which organ is an ECG carried out?
Oct/Nov 2017
What takes place as the blood passes from the atria into the ventricles of the heart?
Oct/Nov 2017
The diagram shows the circulatory system of a mammal. In which chamber of the heart are the muscle walls the thickest?
Oct/Nov 2017
A group of students looked into how exercise affected heart rate. They recorded heart rates before exercising, immediately after a 1 km run, and one minute after the 1 km run. Before starting the investigation, they planned a hypothesis.
Oct/Nov 2017
What occurs to the heart valves when the ventricles contract?
Oct/Nov 2018
What occurs to the heart valves as the ventricles contract?
Oct/Nov 2018
What occurs to the heart valves as the ventricles contract?
Oct/Nov 2018
The diagram illustrates a vertical slice through a human heart. What are X and Y?
Oct/Nov 2019
The diagram illustrates a vertical slice through a human heart. What are X and Y?
Oct/Nov 2019
The diagram illustrates a vertical cross-section of a human heart. What are X and Y?
Oct/Nov 2019
Fig. 5.1 is an angiogram of the heart taken before treatment for coronary heart disease (CHD) and again after treatment. An angiogram is an image that shows blood flowing through the blood vessels of the heart.
Oct/Nov 2019
The diagram shows a cross-section of a mammalian heart. Which part transports blood straight from the lungs?
Oct/Nov 2021
The diagram illustrates a cross-section of a mammalian heart. Which part transports blood straight from the lungs?
Oct/Nov 2021
The diagram illustrates the external structure of the human heart. Which label shows a coronary artery?
Oct/Nov 2021
What role does the septum play in the heart?
Oct/Nov 2021
Identify and label the spaces provided on Fig. 1.1 with: left ventricle, right atrium, septum, a valve.
Oct/Nov 2021
Explain how the structures of the heart make sure that blood moves in one direction. Include the names of these structures in your answer.
Oct/Nov 2021
The heart drives blood throughout the body.
Oct/Nov 2021
The diagram illustrates the external surface of a human heart. Which structure is a coronary artery?
Oct/Nov 2022
The diagram shows the external surface of a human heart. Which structure is a coronary artery?
Oct/Nov 2022
The diagram illustrates the exterior of a human heart. Which structure is a coronary artery?
Oct/Nov 2022
What occurs in the heart as blood moves from the atria into the ventricles?
Oct/Nov 2022
Fig. 6.1 shows a sectional diagram of a human heart.
Oct/Nov 2022
What feature makes blood flow in only one direction in the human circulatory system?
Oct/Nov 2023
The graph displays the thickness of the muscular wall in each of the four chambers of the mammalian heart. Which chamber is the right ventricle?
Oct/Nov 2023
Fig. 3.1 shows a diagrammatic cross-section of a human heart.
Oct/Nov 2023
The diagram shows a cross-section of the human heart. Which valve is the right atrioventricular valve?
Oct/Nov 2024
The diagram illustrates the human heart. What are semilunar valves?
Oct/Nov 2024
The diagram depicts a cross-section of a human heart. Which labelled part is the left atrium?
Oct/Nov 2025
The diagram shows a cross-section through a human heart. Which structure is the atrioventricular valve on the right-hand side of the heart?
Oct/Nov 2025
Fig. 4.1 gives a cross-section of a human heart and the major blood vessels.
Oct/Nov 2025