Diffusion Through a Membrane

Diffusion is the net movement of particles (atoms, molecules, or ions) from a highly concentrated region to a region of low concentration. Understanding diffusion through a membrane is a key biology concept. Take this interactive tour to help you master the process and terminology.

Get More Help!

Click one of these links to get more help from another Cramlet in this same chapter:

• Biology Quiz: Cell Membranes
• My Cell Membranes
• Plasma Membrane – Plant Cells
• Plasma Membrane – Animal Cell
• Passive Transport
• Osmosis in an Animal Cell
• Osmosis in a Plant Cell
• Membrane Proteins
• Lipid Bilayer
• Exocytosis
• Endocytosis
• Diffusion Through a Membrane
• Carrier Proteins
• Active Transport