Question

The chemical reaction for photosynthesis is 6CO2+ 12H2O+ Light Energy -> C6H12O6 + 6O2 + 6H2O. If the input water is labeled with a radioactive isotope of oxygen, 18 O. then the oxygen gas released as the reaction proceeds is also labeled with 18 O. Which of the following is the most likely explanation?

Answer 1

The chemical reaction for photosynthesis is if the input water is labeled

The chemical reaction for photosynthesis is 6 CO2 + 12 H2O + light energy → C6H12O6 + 6 O2 + 6 H2O. If the input water is labeled with a radioactive isotope of oxygen, 18O, then the oxygen gas released as the reaction proceeds is also labeled with 18O.