Cofactors are……that join with enzymes altering their shape and making them functional.
a) atoms
b) group of atoms
c) molecules
d) all of these
Explanation: these are “ON – OFF” switch for activating an enzyme
What is a cofactor?
a) organic molecules
b) inorganic ions
c) both a and b
d) none of them
Explanation: A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's role as a catalyst
An enzyme without cofactor is called…
a) coenzyme
b) apoenzyme
c) holoenzyme
d) all of these
If the cofactor is a non-protein like a metallic ion, it is referred as a………
a) prosthetic group
b) coenzyme
c) enzyme
d) both a and b
Explanation: e.g. zinc, copper and iron
Some cofactors are small organic molecules called……..
a) prosthetic group
b) coenzyme
c) enzyme
d) both a and b
Explanation: e.g. NAD+, FAD+ NADP
Many of coenzymes are derived from…….that are essential for life.
a) vitamins
b) minerals
c) proteins
d) both a and b
