How many CO2 molecules are produced when three glucose molecules undergo cellular respiration? A. 18

B. 3

C. 6

D. 12

18 moles of CO2

Explanation:

We have to turn to the stoichiometry of the reaction as depicted in the equation below;

Equation of respiration;

C6H12O6 + 6O2 → 6CO2 + 6H2O

If 1 glucose molecule produces 6 moles of CO2

3 moles of glucose will produce 3 × 6/1 = 18 moles of CO2

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