plumiThe heart: CAIE A‑Level Biology questions
Every CAIE A-Level Biology exam question on 8.3 The heart, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Q5(a)
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All 4 questions on The heart, as a list
- June 2024, Paper 1, Q26 (1 mark): The following tissues carry an electrical impulse during the cardiac cycle. 1 atrioventricular node 2 muscle wall of atria 3 Purkyne tissue 4 sinoatrial node In
- June 2024, Paper 1, Q27 (1 mark): The graph shows changes in the volume of the ventricles during a single cardiac cycle. atrial ventricular diastole systole systole volume of ventricles P / arbi
- Specimen, Paper 1, Q33 (1 mark): The contraction of the heart is coordinated through electrical impulses passing through the cardiac muscle. What is the correct order of part of the sequence of
- Specimen, Paper 2, Q5(a) (3 marks): The sinoatrial node (SAN) and the atrioventricular node (AVN) are two regions of the heart. Explain the role of the SAN and the role of the AVN in the cardiac c
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