In catabolic reaction, _free the _.

Explanation

In catabolic reactions, proteins are broken down into amino acids. Proteins are large biomolecules consisting of one or more long chains of amino acid residues. During catabolism, these proteins are degraded into their constituent amino acids, which can then be used in various metabolic processes or for synthesis of new proteins. This makes Option B the correct answer.Option A is incorrect because fatty acids are not released from polysaccharides; rather, polysaccharides are broken down into simple sugars like glucose. Option C is incorrect because lipids are broken down into fatty acids and glycerol, not glucose. Option D is incorrect as there is a correct answer present.