The main source of energy for cells under normal conditions is

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Quizplus · Accepted Answer

Glucose is the primary source of energy for cells under normal conditions, as it is readily available and easily converted into energy through cellular respiration. While proteins and lipids can also be broken down into energy, they are not as efficient as glucose and are typically only used when glucose is not available. Vitamins themselves do not provide energy, but they are necessary for the proper functioning of enzymes and metabolic processes that produce energy from glucose.

The Main Source of Energy for Cells Under Normal Conditions