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Anannt EducationUnit 2/3 slice
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This is a Unit 2 and Unit 3 slice. It is not complete AP Biology. Units 1 and 4–8 are not published.

Unit 2 · membrane

Water movement: a worked experiment

Anannt Education · expert-reviewed original · lesson v1.0 · about 25 min

Performance objective

Predict water movement, record a reason, compare the prediction with a model, and match errors to water movement, permeability or equilibrium.

This is the PRD’s worked membrane-transport experience. Feedback follows the misconception, not a replay of the same animation.

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