The non-protein component in enzymes, which is necessary for its biological activity, is called:
A
nucleic acid
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B
lipid
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C
phosphoric acid
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D
coenzyme
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Solution
The correct option is C coenzyme
The non-protein component in enzymes, which is necessary for its biological activity, is called a coenzyme.
The activity of an enzyme depends, at the minimum, on a specific protein chain. In many cases, the enzyme consists of the protein and a combination of one or more non-protein parts called coenzymes.
Coenzymes can be either inorganic or organic compounds. They include NADH, NADPH and ATP. These molecules transfer chemical groups between enzymes.