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Why is it necessary for glucose and oxygen to reach cells?

Answer and explanation

Correct answer: For energy production

The governing concept is cellular respiration, which supplies usable energy to cells. Glucose acts as the respiratory substrate, while oxygen enables its complete oxidation in aerobic respiration. This process releases energy that is stored mainly as ATP and used for growth, repair, movement and other cellular activities. Therefore, option A is correct; the other options describe unrelated functions.

Related tags

GlucoseOxygenCellular RespirationAtpLife ProcessesWorld Of LivingScienceClass 10 Mcq

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