Photosynthesis:
-Needs light.
-A chemical process that converts carbon dioxide into organic compounds(sugars).
-Sun is the source of energy for photosynthesis.
-Occurs in plants,algae, and some species of bacteria.
-Chlorophyll and pigments also help in the process of photosynthesis.
-Organisms create their own food.
-maintains normal levels of oxygen in the atmosphere.
-Occurs in open sky.
Cellular Respiration:
-Needs oxidation.
-The set of metabolic reactions and processes that take place in cells to convert biochemical energy from nutrients into ATP and then releases waste products.
-Involve catabolic reactions.
-Cells gain useful energy used to fuel cellular changes.
-Energy released is used to synthesize ATP to store this energy which can be used to drive certain processes across cell membranes.
-Occurs in bottom of sea where there is no light.
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