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1. Requires oxygen
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Does not require oxygen
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2. Complete oxidation of respiratory substrate takes place.
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Incomplete oxidation of respiratory substrate takes place.
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3. Reactions take place in mitochondria and Cytoplasm.
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Complete process takes place in cell cytoplasm only.
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4. Large amount of energy is liberated.
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Less amount of energy is liberated.
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5. Efficiency is about 40%.
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Efficiency is about 2.12%
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6. End products produced include carbon dioxide and water.
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End products produced include ethyl alcohol and carbon dioxide.
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7. Consists of three steps: Glycolysis, Krebs cycle and terminal oxidation.
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Consists of two steps: Glycolysis and incomplete break-down of pyruvate
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8. It involves Electron transport.
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Electron Transport is absent.
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