Consider the scenario of two scientists conducting an experiment to track what happens to the carbon atoms from CO2 molecules used during the Calvin cycle of photosynthesis. They add a radioactive "tag" to the carbon atoms of the CO2 reactants and then collect the products following the reactions. They analyze the products for their level of radioactivity. Which product(s)would you expect to be radioactive?

Question

Quizplus · Accepted Answer

The radioactive "tag" was added to the carbon atoms of the CO2 reactants, which are incorporated into the glucose molecule during the Calvin cycle. Therefore, the glucose product is expected to be radioactive. ATP and water are not directly involved in the Calvin cycle and therefore are not expected to be radioactive.

Consider the Scenario of Two Scientists Conducting an Experiment to Track