Question

why do food molecules need to be oxidised during respiration?

Answer 1

Answer:

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells. ... During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water.

Answer 2

Answer:

Glucose is oxidised to release its energy, which is then stored in ATP molecules. Aerobic respiration breaks down glucose and combines the broken down products with oxygen, making water and carbon dioxide. The carbon dioxide is a waste product of aerobic respiration because cells do not need it.

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