Enzyme labeling can be used to map the structure of the active site of an enzyme using an affinity label, a molecule that is structurally similar to the substrate. Which of the following statements about enzyme labeling is true?a.) the affinity label dissociates quickly from the regenerated enzymeb.) labeling is an example of noncompetitive inhibitionc.) labeling relies upon only noncovalent intermolecular forcesd.) labeling reduces Km and increases Vmaxe.) labeling involes covaletn modification of the enzyme

Labeling involves covalent modification of the enzyme

Explanation:

Labelling is a method which is used to label a marker molecule in a mixture of substance. When the molecular markers which act as a label are attached to the enzyme is known as the enzyme labelling.

The enzyme labelling is used in many areas of biology and biochemistry like it is used in the blood test in the medicine and in knowing the structure of the active site of an enzyme.

To know the active site of an enzyme, the label binds to the active site which involves he covalent modification with the enzyme and is irreversible.

Thus, selected option is correct.

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this is a good question! i'll do some research and come back when i have the answer!