| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.SL.TZ0.5 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
Which process requires channel proteins?
A. Simple diffusion
B. Facilitated diffusion
C. Binding of hormones
D. Exocytosis
Markscheme
B
Examiners report
This question was too easy for candidates and not a good discriminator. This shows most candidates were familiar with the process of facilitated diffusion.
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