DP Biology (first assessment 2025)
Question 19M.2.HL.TZ1.21a.i
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.2.HL.TZ1.21a.i |
| Level | HL | Paper | 2 | Time zone | TZ1 |
| Command term | State | Question number | a.i | Adapted from | N/A |
a.i.
[Maximum mark: 1]
19M.2.HL.TZ1.21a.i
(a.i)
State one condition which would require the use of an artificial pacemaker.
[1]
Markscheme
a. heartbeat too slow/fast/irregular/tachycardia/fibrillations ✔
b. sinoatrial node is malfunctioning ✔
c. pathway that conducts electrical impulses generated by the sinoatrial node is impaired ✔
Do not accept heart attack
Examiners report
This was generally well answered, with a few students identifying generic (and incorrect) medical problems such as heart attacks and hypertension.
