Oxygen enters the blood in the A. Bronchi.
The best answer should be
D) Food component that can be stored in the body for future energy needs
Needs to be transported to the mitochondria or the cytosol.
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</span>There are four stages of cellular respiration: glycolysis, pyruvate oxidation, Krebs cycle and Oxidative
phosphorylation. Glycolysis takes place in the cytosol of a cell,while the <span>pyruvate oxidation and the following steps take place </span> in the matrix of the mitochondria. If the enzyme is involved in cellular respiration, it need to be in one of these places.
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Explanation:
Basically, what you need to do is use a term for each one of the circles so it is even and if you look at the explanation(above or below it) it will match the definition of the term you provided. I'm guessing tho.