Calcium functions as what type of molecule in enzymatic activity?

Prepare for the Nutrition Section 1 Test. Master nutrition topics through diverse questions, complete with hints and explanations. Get confident for your test!

Multiple Choice

Calcium functions as what type of molecule in enzymatic activity?

Explanation:
Calcium acts as a metal ion cofactor that helps enzymes function. In enzymes that require a metal ion for activity, calcium can aid by stabilizing charged groups, helping to orient the substrate, or participating directly in the chemical reaction. When the metal ion is an essential part of the enzyme’s catalytic machinery, the enzyme is classified as a metalloenzyme. So, calcium’s role in enzymatic activity is best described as a metalloenzyme—a metal-containing enzyme that relies on calcium for its function. It’s not a hormone or an antioxidant.

Calcium acts as a metal ion cofactor that helps enzymes function. In enzymes that require a metal ion for activity, calcium can aid by stabilizing charged groups, helping to orient the substrate, or participating directly in the chemical reaction. When the metal ion is an essential part of the enzyme’s catalytic machinery, the enzyme is classified as a metalloenzyme. So, calcium’s role in enzymatic activity is best described as a metalloenzyme—a metal-containing enzyme that relies on calcium for its function. It’s not a hormone or an antioxidant.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy