MODEL
Where will the water go?
Combine solute and pressure potential to predict osmosis.
Model
Can changing pressure reverse a prediction based only on solute concentration?
Cell A water potential (MPa)-0.4
Cell B water potential (MPa)-0.4
No net water movement
Water potential = solute potential + pressure potential. Net movement is from higher to lower total water potential; higher may mean less negative.
Initial direction only. Gravity and matric terms are omitted; cell potentials would change as water moves.
Explain what you observed
How can you isolate the effect of one factor?
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Read a related learning guide →Practise Cell Structure & Function →Open the student notes folder ↗Concepts and sources
Chapter extension: selected concepts, not complete syllabus coverage.
Read the supporting source ↗PMDC curriculum ↗Questions and explanations are original teaching material; these are not official exam questions.