AS OCR Biology Unit 1 Module 1 Biological Membranes

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  • Created on: 10-02-12 21:46

Biological Membranes- Fluid Boundaries

The role of membranes:
- separating cell contents from the outside environment
- separating cell components from cytoplasm
- cell recognition and signalling
- holding the components of some metabolic pathways in place
- regulating the transporting of materials in or out of cells

The nature of phospholipids:
- Phosopholipid molecule consists of the phosophate head which is hydrophillic (water loving) and two fatty acid tails which are


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