What is the source of glucose as a reactant in cellular respiration

Food that we eat serves as the source of reactant for the process of cellular respiration.

Cellular respiration can be defined as the biological process which uses glucose as reactant to convert into carbon dioxide and water.

This process also releases energy which is used by the body to perform various functions.

This glucose which is used in this process comes from the food that we eat. The food is rich in carbohydrates, fats and proteins which is used up during the process of cellular respiration.

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i believe your answer would be c.. : )