Suppose an experiment is performed in which :
“Plant 1” is supplied with normal carbon dioxide but with water containing radioactive oxygen atoms.
“Plant 2”, however, is supplied with normal water but with carbon dioxide containing radioactive oxygen atoms.
Each plant is allowed to perform photosynthesis and the oxygen gas and sugars are tested for having radioactive elements. Which plant would you expect to produce radioactive sugars and which plant would you expect to produce radioactive oxygen gas? Explain your answers.