water + carbon dioxide + energy -> sugar + oxygen oxygen + sugar -> carbon dioxide + water + energy carbon dioxide + oxygen + water -> sugar + energy sugar + carbon dioxide + energy -> oxygen + water
I gave my students this multiple choice question: Which equation summarizes the process of respiration?

Only one answer is correct among these 4 choices:
- water + carbon dioxide + energy -> sugar + oxygen
- oxygen + sugar -> carbon dioxide + water + energy
- carbon dioxide + oxygen + water -> sugar + energy
- sugar + carbon dioxide + energy -> oxygen + water

Could you tell me which one is correct?

oxygen + sugar -> carbon dioxide + water + energy