All movement,including that of diffusing molecules,requires a small expenditure of energy; which of the following small sources of energy is most likely to make diffusion possible across the cell membrane from the cell exterior into the cell interior?

Question

Quizplus · Accepted Answer

Thermal energy is present in the extracellular environment and provides the energy for diffusion to occur. ATP hydrolysis is not required for simple diffusion and only occurs in active transport. Chemical reactions with the membrane and gravity do not provide sufficient energy for diffusion.

All Movement,including That of Diffusing Molecules,requires a Small Expenditure of Energy;