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Molecular Foundations and Cell Architecture · Autumn Term

Passive Transport: Diffusion and Osmosis

Investigate the mechanisms of simple diffusion, facilitated diffusion, and osmosis across selectively permeable membranes.

Key Questions

  1. Explain how the concentration gradient drives the net movement of substances in passive transport.
  2. Compare the roles of channel proteins and carrier proteins in facilitated diffusion.
  3. Predict the osmotic effects on animal and plant cells when placed in hypotonic, isotonic, and hypertonic solutions.

National Curriculum Attainment Targets

A-Level: Biology - Transport Across Cell Membranes
Year: Year 12
Subject: Biology
Unit: Molecular Foundations and Cell Architecture
Period: Autumn Term

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