A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence inPassive/Active Voice.
An enzyme is a variety of catalyst and is the relation between tham. A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction.
The processes both osmosis and diffusion come under passive transport and require no energy. The movement of solute from the region of higher concentration to the region of lower concentration is nothing but diffusion.