Increasing the temperature will make the membrane more permeable because there will be an increase in energy, leading to higher molecular movement and increasing the diffusion rate. When temperature rises, the kinetic energy of molecules also increases, causing them to move faster and creating gaps in the phospholipid bilayer. This increased movement allows molecules to pass through the membrane more easily, hence enhancing its permeability.
On the other hand, if the temperature decreases, the membrane would become less permeable. Lower temperatures result in reduced kinetic energy, leading to slower molecular movement. This decrease in movement causes the phospholipid molecules to pack more tightly together, making the membrane less permeable.
Therefore, the correct statement is: Increasing the temperature will make the membrane more permeable because there will be an increase in energy and therefore the molecules' movement, increasing the diffusion rate.
