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1. It takes place in the cytoplasm of the cell.
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1. It takes place in the mitochondria.
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2. It is a linear pathway.
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2. It is a cyclic pathway.
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3. Oxygen is not required for glycolysis
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3. It takes place only in the presence of oxygen, used as terminal oxidant.
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4. It is a pathway for both the aerobic and anaerobic respiration.
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4. It occurs in the aerobic respiration only.
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5. Carbon dioxide is not evolved.
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5. Carbon dioxide is evolved during the cycle.
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6. Glycolysis is the first step in the respiration.
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6. Krebs cycle is the second stage in the respiration.
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7. Glucose is the substrate used in glycolysis.
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7. Acetyl coenzyme A is the substrate in Krebs cycle.
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8. 2 ATP molecules are used up in this process.
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8. No ATP molecules are consumed.
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9. Produces 4 ATP molecule so net gain is 2 ATP.
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9. Produces 2GTP molecules from 2 pyruvate molecules.
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10. Pyruvic acid is the end product of glycolysis which undergoes oxidative decarboxylation and enters the Krebs cycle.
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10. Oxalo acetic acid is the end product of Krebs cycle which again gets cycled by combing with acetyl CoA in the next cycle.
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11. 1 molecule glucose yields 2NADH+ H+.
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11. 2 pyruvate molecules yield 6 NADH+ H+ ad FADH2 molecules.
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