Q.

Which of the following statements is correct with reference to enzymes      [2017]

1 Holoenzyme = Apoenzyme + Coenzyme  
2 Coenzyme = Apoenzyme + Holoenzyme  
3 Holoenzyme = Coenzyme + Co-factor  
4 Apoenzyme = Holoenzyme + Coenzyme  

Ans.

(1)

Holoenzyme is the complete conjugate enzyme consisting of an apoenzyme and a cofactor. Cofactor may be organic or inorganic in nature. Organic cofactors are of two types-coenzyme and prosthetic group.