| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.HL.TZ0.24 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Identify | Question number | 24 | Adapted from | N/A |
Question
What happens when an action potential reaches motor end plates?
A. Calcium ions are absorbed by the muscle fibres.
B. The sarcomeres relax.
C. Neurotransmitter is released.
D. Action potential is passed to the neuron.
Markscheme
C
Examiners report
[N/A]
Syllabus sections
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