BRAINCAKESimple Diffusion
Diffusion is the net movement of molecules or ions from a region of high concentration to a region of low concentration until evenly distributed.
Diffusion is described as passive transport.
The energy for diffusion comes from the kinetic energy of the particles.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- phospholipid
- A lipid in which one fatty acid is replaced by a phosphate group, giving a hydrophilic head and hydrophobic tails.
More in Transport Across Cell Membranes
- Glycolipids
- Glycoproteins
- Fluid-mosaic Model
- Membrane Permeability
- Facilitated Diffusion
- Protein Channels
- Carrier Proteins
- Water Potentital Φ
All 22 lessons in Transport Across Cell Membranes · All AQA AS-level Biology topics