How do you explain the change in membrane permeability as temperature increases?

As temperature increases, the membrane permeability of cells increases due to the increased kinetic energy of the molecules in the membrane. This increased energy causes the molecules to move faster, making it easier for them to cross the membrane.

The lipid bilayer that makes up the cell membrane is composed of phospholipids, which are held together by weak hydrophobic interactions. As the temperature rises, these interactions weaken and the membrane becomes more fluid, allowing molecules to pass through more easily. Additionally, the protein channels and pumps in the membrane that regulate ion and molecule movement may become disrupted or denatured at high temperatures, leading to increased membrane permeability.

The increase in membrane permeability can have detrimental effects on the cell, such as the loss of important ions and molecules or the influx of harmful substances. It is important for cells to maintain a stable membrane permeability to ensure proper cellular function and survival.