Question

What substances are used up as the reactants in cellular respiration?

1: O2 and H2O
2: O2 and C6H12O6
3: CO2 and C6H12O6
4:CO2 and H2O

Answer 1

The correct answer should be 2) O2 and C6H12O6 (Oxygen and Glucose)
I hope this helps.
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Answer 2

Hi.

The reactants in celluar respiration are oxygen & glucose.

This means the answer is

2: O₂ + C₆H₁₂O₆

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