What is a key function of Biotin, also known as Vitamin B7?

Biotin, also known as Vitamin B7, plays a crucial role in various metabolic processes in the body, particularly as a coenzyme in carboxylation reactions, which are essential for the synthesis of fatty acids and glucose, and for the metabolism of certain amino acids. The function of biotin as part of a coenzyme needed in cell growth underscores its importance in cellular metabolism and the proliferation of cells.

While it is true that biotin is involved in numerous metabolic pathways, its primary responsibility is as a cofactor in the enzymatic processes that facilitate the conversion of food into energy and the synthesis of fatty acids. This function supports overall metabolism and helps maintain healthy cellular function, making it integral to cell growth and division.

The other options, such as being an enzyme cofactor for carbohydrate metabolism or essential for DNA synthesis, do not specifically highlight the broad and important role of biotin in supporting cell growth and proliferation. Biotin's ability to facilitate critical reactions in metabolic pathways is what enhances its significance in various physiological functions.