What do most enzymes that utilize atp also require as a cofactor?
a. mg2+
b. nad+
c. thiazolium pyrophosphate
d. coenzyme a

Mg2+

Explanation: ATP(Adenosine triphosphate) is unstable in nature and also shows the property of being electronegative. It is seen that is the electronegative element and it is bonded with the Mg2+ being a positive divalent and thus achieve the stability and reducing the electrostatic repulsion.So, there is the combination between the negatively charged phosphate groups with the Mg2+. Therefore option (a) is the correct answer.

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