DP Biology (first assessment 2025)
Question 19M.2.HL.TZ2.b
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.2.HL.TZ2.b |
| Level | HL | Paper | 2 | Time zone | TZ2 |
| Command term | State | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
19M.2.HL.TZ2.b
State the name of the valves that prevent blood flowing from the arteries back into the heart.
[1]
Markscheme
semilunar / sigmoid / pulmonary and aortic valve ✔
Examiners report
Most could name the semilunar valves.
