0653.B9.2.01 — Identify in diagrams and images the structures of the mammalian heart, limited to: muscular wall, septum, left and right ventricles, left an: past paper questions
Real questions on 0653.b9.2.01 — identify in diagrams and images the structures of the mammalian heart, limited to: muscular wall, septum, left and right ventricles, left an
The newest 20 of 31 written questions. Open one to see it on the real paper.
- 0653/31 · May/June 2025 · Q2a[3]
Use letters P–S to complete the sentences about the heart in Fig. 2.1. The part labelled is the muscular wall of the left ventricle. Blood is transported away from the right side of the heart in the part labelled .
See it on the paper → - 0653/32 · February/March 2025 · Q3a(iii)[1]
State the name of the structure that separates the left and right ventricles of the heart.
See it on the paper → - 0653/42 · February/March 2025 · Q2a(i)[2]
Identify the parts labelled X and Y on Fig. 2.1. X
See it on the paper → - 0653/42 · February/March 2025 · Q2a(ii)[2]
The arrow in Fig. 2.1 shows the direction of blood flow out of the heart. Explain how the part labelled Z is adapted to its function.
See it on the paper → - 0653/32 · October/November 2024 · Q4a(i)[1]
Identify the part of the heart labelled X in Fig. 4.1.
See it on the paper → - 0653/32 · October/November 2024 · Q4a(ii)[2]
A student states that the part labelled Y in Fig. 4.1 is the pulmonary artery. Describe evidence from Fig. 4.1 that supports this statement. (ii)
See it on the paper → - 0653/33 · October/November 2024 · Q4a(i)[1]
Identify the part of the heart labelled X in Fig. 4.1.
See it on the paper → - 0653/33 · October/November 2024 · Q4a(ii)[2]
A student states that the part labelled Y in Fig. 4.1 is the pulmonary artery. Describe evidence from Fig. 4.1 that supports this statement. (ii)
See it on the paper → - 0653/43 · October/November 2024 · Q7a(ii)[1]
Use a label line with the letter X to label the left atrium in Fig. 7.1.
See it on the paper → - 0653/33 · May/June 2024 · Q1a[2]
Fig. 1.1 is a diagram of the human heart. Complete the labels on Fig. 1.1. blood to the body blood from the lungs vein left atrium left ventricle Fig. 1.1
See it on the paper → - 0653/41 · May/June 2024 · Q1[4]
The part labelled X on Fig. 1.1 is the muscular wall of the right .................................. . When the muscles in part X contract, blood is pumped into the .................................. artery. The blood from part Y is transported to the .................................. . During this contraction the par...
See it on the paper → - 0653/42 · May/June 2024 · Q7a(ii)[1]
1-mark question — its maths and diagrams are best seen on the paper.
See it on the paper → - 0653/62 · October/November 2023 · Q1a(i)[2]
The ECG results for running times of 5 and 10 minutes are shown in Fig. 1.2. running time of 5 minutes running time of 10 minutes 5 seconds Fig. 1.2 Use Fig. 1.2 to count the number of heart beats in 5 seconds of the person at the end of running times of 5 minutes and 10 minutes. Record these values in Table 1.1. Table...
See it on the paper → - 0653/62 · October/November 2023 · Q1a(ii)[1]
The heart rate is calculated as beats per minute (bpm). Complete Table 1.1 by calculating the heart rate of the person at the end of running times of 5 minutes and 10 minutes. Use the equation shown. heart rate = number of heart beats in 5 seconds × 12
See it on the paper → - 0653/62 · October/November 2023 · Q1a(iii)[3]
On the grid, plot a graph of heart rate (vertical axis) against running time.
See it on the paper → - 0653/62 · October/November 2023 · Q1a(iv)[1]
Draw the best‑fit curve.
See it on the paper → - 0653/62 · October/November 2023 · Q1a(v)[1]
Describe the relationship between running time and heart rate.
See it on the paper → - 0653/62 · October/November 2023 · Q1a(vi)[1]
The person is asked to run at a constant speed during the investigation. Explain why this makes it a fair test.
See it on the paper → - 0653/62 · October/November 2023 · Q1c[2]
ECGs are used to diagnose heart problems. Fig. 1.4 shows an ECG for a healthy person and an ECG for a person with a heart problem. voltage voltage R T P Q S time time healthy heart problem Fig. 1.4 Describe one similarity and one difference between the ECG for the healthy person and the ECG for the person with a heart...
See it on the paper → - 0653/32 · May/June 2023 · Q1a[2]
State the letter in Fig. 1.1 that identifies the: right atrium septum
See it on the paper →
What examiners said
Most candidates identified Q and P correctly. A common error was identifying the septum, R, as the muscular wall of the left ventricle. The left ventricle needs to be powerful enough to contract and send the blood around the body. Q is muscular enough to do this. The septum divides the two sides of the heart to ensure that oxygenated and deoxygenated blood do not mix.
— Examiner report, May/June 2025, 0653/31 Q2(a) (Cambridge)
The septum, which separates the left and right ventricles, was known by many candidates. The most common error was valve. Candidates should be aware that the valves in the heart allow the one-way passage of blood through the heart, and the septum, which goes down the middle of the heart, keeps the oxygenated and deoxygenated blood separate.
— Examiner report, February/March 2025, 0653/32 Q3(a)(iii) (Cambridge)
Candidates usually recognised both atrium and valve. The term ‘auricle’ was allowed for atrium.
— Examiner report, February/March 2025, 0653/42 Q2(a)(i) (Cambridge)
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