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Chemosynthesis
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Photosynthesis
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1. It occurs only in colorless aerobic bacteria.
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1. The process occurs in green plant including green bacteria.
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2. During the process, CO2 is reduced to carbohydrates without light and chlorophyll.
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2. CO2 and H2O are converted into carbohydrates in presence of light and chlorophyll.
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3. In the process, the chemical energy released during oxidation of inorganic substances is used up to synthesize carbohydrates.
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3.Light energy is converted into chemical energy and stored in the carbohydrates
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4. No pigment molecule is involved in the process.
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4. Several pigments are involved to absorb light energy to perform a photochemical act.
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5.Oxygen is not evolved
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5. Oxygen is evolved as a by-product.
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6. Photophosphorylation does not take place.
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6. During the process, Photophosphorylation is found.
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