Answer:
d. osmosis.
Explanation:
Osmosis -
It is the process of movement of the molecules of solvent via a semipermeable membrane , i.e. it allows only certain particles or molecules to pass through them , is known as the process of osmosis .
The movement of particles is always directed from the region of more concentration of solute towards the region of less concentration of solute .
The membrane is made up of fats , lipids and proteins .
Hence , from the question statement , the correct term for the given statement is osmosis .