DP Biology (first assessment 2025)

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Question 23M.2.HL.TZ1.22c

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.HL.TZ1.22c
Level HL Paper 2 Time zone TZ1
Command term Describe Question number c Adapted from N/A
c.
[Maximum mark: 2]
23M.2.HL.TZ1.22c
(c)

Describe the state of the heart valves at 0.3 s.

[2]

Markscheme
  1. atrioventricular/AV valves closed;
  2. semi-lunar valves open;

Syllabus sections