Question

in cellular respiration, cells break down glucose to release energy, water, and carbon dioxide. what is another reactant required for this process?

a nitrogen

b oxygen

c hydrogen

d carbon

Explanation:

Cellular respiration is the process where cells break down glucose. The chemical equation for aerobic cellular respiration is \( C_6H_{12}O_6 + 6O_2
ightarrow 6CO_2 + 6H_2O + \text{energy} \). From this equation, we can see that glucose (\( C_6H_{12}O_6 \)) and oxygen (\( O_2 \)) are the reactants, and carbon dioxide, water, and energy are the products. Nitrogen, hydrogen (as a separate gas reactant), and carbon (as a separate reactant) are not required in this process as per the cellular respiration reaction. So the other reactant is oxygen.

Answer:

b. oxygen