What are co-factors?

1.	What are co-factors?
Answer» 1. Enzymes require certain inorganic ions for their activity. 2. The inorganic ions which are loosely attached to the protein part are called cofactors. E.g. Magnesium, copper, zinc, iron, manganese etc. [Note: Apoenzyme (protein part) and cofactor together form a complete catalytically active enzyme which is known as holoenzyme. The co-factors are of two types; metal ions and coenzymes. A coenzyme or metal ion that is very tightly or even covalently bound to the enzyme protein is known as a prosthetic group.]

Answer»

1. Enzymes require certain inorganic ions for their activity.

2. The inorganic ions which are loosely attached to the protein part are called cofactors.

E.g. Magnesium, copper, zinc, iron, manganese etc.

[Note: Apoenzyme (protein part) and cofactor together form a complete catalytically active enzyme which is known as holoenzyme. The co-factors are of two types; metal ions and coenzymes. A coenzyme or metal ion that is very tightly or even covalently bound to the enzyme protein is known as a prosthetic group.]

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