How does the body breakdown carbohrydrates?

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Carbohydrates such as glucose for example are catabolized(break down) by certain metabolic pathways. Glycolysis pathway is the first step where glucose is converted to pyruvate. Subsequently, pyruvate undergo Kreb's cycle and electron transport chain to synthesis energy or ATP molecules. Disaccharide (sucrose as example) or Polysaccharides such as Glycogen are first converted to its monomeric forms such as glucose, fructose, galactose etc. before entering the above said pathways.