Question

What is cellular respiration in human beings?
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Answer 1

the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

Answer 2

Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP .

Step-by-step explanation:

Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which may be used as energy to power many reactions throughout the body. There are three main steps of cellular respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.