Read Movement across semi-permeable membrane
This SOF ISO pattern tests interpret volume changes. Read the condition carefully, then use the method below before you solve.
Living-system questions are solved by matching a structure or organism to its function, process and stated condition.
Water moves across a membrane from dilute to concentrated
Water crosses the membrane from dilute to concentrated
For osmosis, track water—not solute—across a semi-permeable membrane. The concentration difference determines the net direction.
Find the tested idea
Name the biological structure, process or relationship being tested before comparing the options.
Work from the evidence
Link the structure to its function, or trace the process in its natural order. Use the stated condition rather than a memorised exception.
Verify before choosing
Use the wording, diagram and units exactly as given. Select an option only after it satisfies every stated condition.
OlympIQ exam lens
- ✓Identify the biological level.
- ✓Match structure with function.
- ✓Check the condition in the stem.
Check that the option uses the correct level of organisation: part, organism, population or ecosystem.
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