Riboflavin, Thiamin, Pantothenic acid, and Biotin are associated with which type of metabolism?

The correct association is with carbohydrate metabolism, as riboflavin, thiamin, pantothenic acid, and biotin are all B-vitamins that play crucial roles in energy production processes, particularly those that involve carbohydrates.

Riboflavin (Vitamin B2) serves as a coenzyme for various oxidation-reduction reactions in the body and is essential for the metabolism of carbohydrates, fats, and proteins. Thiamin (Vitamin B1) is fundamental in carbohydrate metabolism as it helps in the conversion of carbohydrates into energy through its role in the pyruvate dehydrogenase complex, which processes pyruvate derived from glucose. Pantothenic acid (Vitamin B5) is vital for synthesizing coenzyme A, which is necessary for the metabolic pathways that lead to energy production from carbohydrates. Biotin (Vitamin B7) is integral to the metabolism of carbohydrates and fatty acids, facilitating the conversion of pyruvate into oxaloacetate for entry into the Krebs cycle.

These B-vitamins collectively support the enzymatic processes that enable the body to utilize carbohydrates as a primary energy source, thereby highlighting their specific association with carbohydrate metabolism.