Although not a direct component in photosynthesis, temperature is an important factor. This energy is used in the process of building new tissues. The chemical process by which sugars and starches produced by photosynthesis are converted into energy is called respiration. It is similar to the burning of wood or coal to produce heat or energy. However, it is appropriate to relate photosynthesis to a building process, while respiration is a breaking-down process.
Photosynthesis Uses food for plant energy.
Occurs in all cells. Produces carbon dioxide. If oxygen is limited or not present then anaerobic respiration or metabolism occurs. The by products of this reaction are ethyl alcohol or lactic acid and CO 2 . It also occurs in muscle tissue when they are over exerted.