Question

Singer and Nicolson had given the structure of plasma membrane in 1972. It is called fluid mosaic model. It explains the structure and function of the plasma membrane. The fluid nature of the membrane is due to lipid.
During the phenomenon of osmosis, which of the following substances move across the plasma membrane?

A: Solute molecules only


B: Solvent molecules only


C : Ions only


D : Both solute and solvent molecules

Answer 1

both solute and solvent molecules

neutral solute molecules may move across the membrane by the process of simple diffusion and polar molecules move across the membrane against their concentration through active transportation