Question

ather cofactors in that
ile groups are oranic compounds and are distinguished from
actor in that they are tightly bound to the apoenzyme, For
in peroxidase and catalane, which catalyze the breakdown of
en peroxide to water and oxygen, haem is the prosthetic group
and it is a part of the active site of the enzyme.
Coenzymes are also organic compounds but their association with
he apoenzyme is only transient, usually occurring during the course of
matalysis. Furthermore, co enzymes serve as co-factors in a number of
ifferent enzyme catalyzed reactions. The essential chemical components
af many coenzymes are vitamins, e.g. coenzyme nicotinamide adenine
inucleotide (NAD) and NADP contain the vitamin niacin.
A number of enzymes require metal ions for their activity which form
hoordination bonds with side chains at the active site and at the same
Eime form one or more cordination bonds with the substrate, e.gr, zinc is
a cofactor for the proteolytic enzyme carboxypeptidase.
Catalytic activity is lost when the co-factor is removed from the enzyme
which testifies that they play a crucial role in the catalytic activity of the
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Answer 1

The option is 4 as it is self explanatory