Function of coenzyme is to

Enzymes may be simple proteins , or complex enzymes, containing a non -protein pa, called the prosthetic group. The prosthetic group is called the co-enzyme.It is heat stable. The protein pa is named as apoenzyme.It is heat labile.The two poions combined together are called the HOLOENZYME. First group of co-enzymes: In the first group , the change occuring in the substrate is counter balanced by the co-enzymes.Therefore,such co-enzymes may be called as co-substrates or secondary substrates. These takes pa in reactions catalyzed by oxido-reductases by donating or accepting hydrogen atoms or electrons. Second group of coenzymes : These coenzymes take pa in reactions transferring groups other than hydrogen. A paicular group or radical is transferred from the substrate to another substrate. REFERENCE :DM VASUDEVAN TEXTBOOK EIGHTH EDITION , Page no :54