Temperature increases membrane fluidity and permeability, potentially denaturing proteins, while organic solvents can dissolve membranes and disrupt cells.
Temperature increases membrane fluidity and permeability, potentially denaturing proteins, while organic solvents can dissolve membranes and disrupt cells.
| Front | Factors affecting membrane structure 2.1.5(c) |
|---|---|
| Back | - Temp - as phospholipids constantly moving, more KE increases fluidity (loses structure) and increases permeability (easier for particles to cross due to gaps), channel/carrier proteins may denature (affection permeability) - solvents - polar solvents(H2O) help form bilayer, many organic solvents less polar or non-polar, which can dissolve membranes and disrupt cells - example is alcohol, where circulating ethanol binds to glutamate(which helps neurons fire) and potentiating GABA ( which inhibits neurons) so slower reactions |
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