BRAINCAKECholesterol
Cholesterol is a hydrophobic molecule that occurs within the membrane.
It adds strength to the membrane, regulates the fluidity of the membrane and prevents the leakage of water and ions across the membrane.
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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
- Plasma Membrane
- Phospholipids
- Proteins
- Glycolipids
- Glycoproteins
- Fluid-mosaic Model
- Membrane Permeability
- Simple Diffusion
All 22 lessons in Transport Across Cell Membranes · All AQA AS-level Biology topics