| Date | November 2011 | Marks available | 1 | Reference code | 11N.1.HL.TZ0.30 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 30 | Adapted from | N/A |
Question
Which term describes the phase of rapid entry of sodium ions (Na+) into an axon during an action potential?
A. Active transport
B. Depolarization
C. Ion pumping
D. Repolarization
Markscheme
B
Examiners report
N/A
Syllabus sections
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