Biotin is a coenzyme needed for certain metabolic reactions that add carbon dioxide to other compounds.

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Biotin is a coenzyme that helps to add a carboxyl group (-COOH) to other molecules in metabolic reactions, through a process called carboxylation. This addition of carbon dioxide is important in a number of metabolic pathways, such as the production of fatty acids and the breakdown of certain amino acids.

Biotin Is a Coenzyme Needed for Certain Metabolic Reactions That