| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.SL.TZ2.6 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 6 | Adapted from | N/A |
Question
The diagram below shows a plasma membrane. What is molecule X?
A. Cholesterol
B. Peripheral protein
C. Glycoprotein
D. Polar amino acid
Markscheme
A
Examiners report
Some teachers complained about the quality of the diagram, but the examiners did not agree with this conception.
