Question

name two common physical processes involved in the transportation of materials across the cell membrane?

Answer 1

" Osmosis " and " Excretion "

Osmosis

The spontaneous movement of water molecules through a selctive permeable membrane is called osmosis.

Excretion

It is mode of egestion of waste material from body. Generally in unicellular it is done by contractile vacuole.

Here we can't include diffusion because diffusion don't requires membrane to occur.