| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.tz0.8 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Where | Question number | 8 | Adapted from | N/A |
Question
Where in the heart is the electrical impulse generated for contraction?
A. Atrioventicular node
B. Left atrium
C. Sinoatrial node
D. Right ventricle
Markscheme
C
Examiners report
Mid-range difficulty.
