| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ2.7 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 7 | Adapted from | N/A |
Question
A number of different proteins are involved in nerve function. Which of the following does not require a membrane protein?
A. Active transport of sodium
B. Diffusion of K+ into the cell
C. Diffusion of the neurotransmitter across the synapse
D. Binding of the neurotransmitter to the post-synaptic membrane
Markscheme
C
Examiners report
As with question 3, this was another ‘negative’ question though it was well answered.
