How do extreme temperatures change the permeability of a cell membrane?
In my biology class we need to write a report about the effects of extreme temperatures are on a cell membrane. To simulate this we put a mix of corn syrup and water in a plastic like material to make a tube (to simulate a membrane) . After putting the tube in very hot water (75 C) and cold water (5 C) The tube's volume got bigger, as well as the mass.
Could someone help me to explain how this happened please?
Excessive temperatures would cause the water to expand putting pressure on the membrane. Also the excessive temperature would cause the lipid part of the cell to liquefy, which can cause leakage. Also proteins in the cell fall apart. All of this allows compounds to exit the cell.
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