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CAIE A-Level Biology AS 8.3.3 Cardiac Cycle and Valves Questions

Explain the cardiac cycle and valve roles in one-way blood flow using evidence from each question and mark scheme.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • Explain the cardiac cycle and the role of valves in maintaining one-way blood flow.

CAIE A-Level Biology AS 8.3.3 Cardiac Cycle and Valves Questions question 1

[Maximum number: 1]

The diagram shows pressure changes during two cardiac cycles.
Which arrow indicates atrial systole?

Figure for Question CAIE A-Level Biology AS 8.3.3 Cardiac Cycle and Valves Questions question 1 — CAIE A-Level Biology AS
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