Cell Membrane Stucture

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Cell Membrane structure
allows a cell to interact with other cells
are selectively permeable
- allowing some material to pass through it
made of a phospholipid bilayer
lets substances in + out of a cell
maintains homeostasis
have different characteristics
- depends on whether the phospholipid is a long or short chanin
- whether the chain is saturated or unsaturated
a flexible, fluid structure
they are constantly changing
need to remain flexible to function well
contain proteins
- float among the phospholipid molecules
transport proteins
- help move nutrients + ions in + out of cells
contain carbohydrates
- help cells recognize themselves from others
- glycolipids
  - bound to lipids
- glycoproteins
  - bound to proteins
bound to lipids
cytoskeleton
- made of:
  - microtubles
  - actin microfilaments
  - intermediate filaments
- support a cell's shape
animal cells produce extra cellular matrix