Aerobic Respiration:

1. Nutrients are oxidized in presence of molecular oxygen.

2. It occurs in the cytoplasm as well as in mitochondria.

3. Glucose is completely oxidized into CO2 and H2O.C6H12O6+O2 — 6O2+6H2O + energy

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4. 38 ATP molecules are released from complete oxidation of glucose.

5. It occurs in animals and higher organisms.

Anaerobic Respiration:

1. Nutrients are oxidized in absence of molecular oxygen.

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2. It occurs in the cytoplasm only.

3. Glucose is incompletely oxidized into lactic acid and ethyl alcohol. C6H12O6 — 2C3H6O3+ energy lactic acid

4. 2ATP molecules are released.

5. It occurs in lower organisms like yeast.