3. Use your knowledge of photosynthesis and cellular respiration to complete the above equations.

8. Cellular Respiration is the cellular process responsible for the color change from blue to yellow in Tube S-3. The other tubes did not change color because the plants are going through photosynthesis.

10. Cellular Respiration is the cellular process responsible for the color change. CO 2 is the reactant responsible for the color change.

12. Both animals and plants go through the process of cellular respiration. In the first test tube in the presence of sunlight, the plant is able to photosynthesize and produce enough oxygen to prevent the formation of carbonic acid. In the second test tube there is no light energy to power photosynthesis. Both the plant and the snail are going through cellular respiration resulting in the formation of carbonic acid.

13. Create a Venn diagram like the one on the right in your notebook using the above terms and phrases.