| Date | November 2021 | Marks available | 1 | Reference code | 21N.1.SL.tz0.9 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Question number | 9 | Adapted from | N/A |
Question
What action of the heart is responsible for the force of systolic pressure as measured on the walls of the aorta?
A. Aortic contraction
B. Aortic relaxation
C. Ventricular relaxation
D. Ventricular contraction
Markscheme
D
Examiners report
Several candidates wrongly selected option A indicating a need to understand the structure and function of the heart during a normal heartbeat.
