Final answer:
Glucose is the body's most readily available source of energy. After being broken down in the digestive system, it is transported to the liver and taken up by cells for energy production through glycolysis.
Step-by-step explanation:
Glucose is the body's most readily available source of energy. After digestive processes break polysaccharides down into monosaccharides, including glucose, the monosaccharides are transported across the wall of the small intestine and into the circulatory system, which transports them to the liver. In the liver, hepatocytes either pass the glucose on through the circulatory system or store excess glucose as glycogen. Cells in the body take up the circulating glucose in response to insulin and, through a series of reactions called glycolysis, transfer some of the energy in glucose to ADP to form ATP. The last step in glycolysis produces the product pyruvate.
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