Answer:
repairing parts of damaged tissue.
Step-by-step explanation:
This actually provide detail explaination about the reason why full heathy meal needed to be eaten before exercise. Since during cellular respiration the carbon dioxide as well as the Oxygen is provided through the food as a product of cellular respiration.
Therefore, energy from the food will be used after it leaves the mitochondrion during cellular respiration, through this the damage cell is repaired through cellular respiration.