Question

Scientists can trace the steps of a biological process using small amounts of radioactive atoms. These radioactive atoms are followed as they undergo chemical changes and reactions, even when passed from one organism to another.

In this assignment, you will trace the path of a labeled carbon atom through the biological processes of photosynthesis and respiration. The atom will start its journey inside a carbon dioxide molecule and it will end in the air inside a new carbon dioxide molecule. Your mission is to use your knowledge of photosynthesis and respiration to explain what happens to th