After digestion and absorption, food provides an available source of energy to tissues if it is converted into:

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Quizplus · Accepted Answer

Glucose is the primary source of energy for the body's tissues. It is produced from the breakdown of carbohydrates in food during digestion and absorbed into the bloodstream, where it can be transported to cells and used for energy production. Glycogen is a form of glucose storage in the liver and muscles, and amino acids are used for protein synthesis rather than energy production. Enzymes are not a source of energy themselves, but rather facilitate the chemical reactions involved in the breakdown and metabolism of nutrients.

After Digestion and Absorption, Food Provides an Available Source of Energy