| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ1.5 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
What do diffusion and osmosis have in common?
A. They only happen in living cells.
B. They require transport proteins in the membrane.
C. They are passive transport mechanisms.
D. Net movement of substances is against the concentration gradient.
Markscheme
C
Examiners report
N/A
Syllabus sections
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