17. Minerals such as calcium function as a A. O phospholipid transporter.
B. fat metabolizer.
C. metalloenzyme
D. O enzyme cofactor.

The activity of an enzyme may accelerate the enzymatic reaction by several factors in the presence of  such as metallic elements.  

Metalloenzyme:

It is an enzyme that contains one or more metals cations at the active site of the enzyme.

For example- calcium is the metal cofactor of protein kinase C.

About one-third of the total known enzymes are metalloenzymes. These metals or minerals bind to the protein directly.  

The activity of an enzyme may accelerate the enzymatic reaction by several factors in the presence of  such as metallic elements.

To know more about Metalloenzyme:

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The correct answer is - c. metalloenzyme.

Explanation:

Metalloenzyme is an enzyme that contains one or more metals or minerals and essential for its biological functions. About one-third of the total known enzymes are metalloenzymes. These metals or minerals bind to the protein or prosthetic group of the enzyme directly.

The activity of an enzyme may accelerate the enzymatic reaction by several factors such as metallic elements. For instance, calcium is the metal cofactor that activates protein kinase C, acting in signal transduction.