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How many monosaccharide units can a polysaccharide contain?

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A biochemical flowchart shows the metabolic pathways for carbohydrate utilization, including glycolysis, the pentose phosphate pathway, and the tricarboxylic acid (TCA) cycle. The diagram traces the conversion of glucose, fructose, and glycerol through various intermediates, leading to energy production, carbon dioxide release, and biosynthesis of amino acids and porphyrins. Key steps and branches are labeled, with colored boxes highlighting biosynthetic outputs. — Carbohydrate Pathways for the utilization of carbohydrates.

A polysaccharide is a large molecule that can contain as many as 10,000 monosaccharide units linked together.1

These molecules vary significantly in size, structural complexity, and sugar content, representing the primary form of structural and energy-reserve carbohydrates found in nature. While they are defined by their large size, they are distinct from oligosaccharides, which typically consist of only three to six monosaccharide units.1