Explain Enzymes
Enzymes are the proteins that act as catalysts, speeding the rate at which biochemical reactions proceed but not altering the direction or nature of the reactions.
A holoenzyme is whole enzyme, as a complete and functional molecule. Generally, a holoenzyme consists of a polypeptide portion (an apoenzyme) and at least one cofactor or other coenzyme.
Metzbolism is all of the organized chemical reactions in a cell which are under the control of enzymes.