Question

What is meant by aerobic and anaerobic respiration? Illustrate by giving reaction that take palce during both the types of respiration

Answer 1

❒Aerobic respiration

takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. The chemical equation is C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water).

❒Anaerobic respiration

also produces energy and uses glucose, but it produces less energy and does not require oxygen. This is useful in tissues which have a high energy demand such as in working muscles, in which there is not enough oxygen to produce all the energy needed by using aerobic respiration alone. Anaerobic respiration takes place in the cell cytoplasm and produces lactic acid.

The chemical equation is C6H12O6 -> 2C3H6O3 (Glucose -> Lactic acid).

The lactic acid then needs to be oxidised later to carbon dioxide and water afterwards to prevent it building up. This process requires oxygen and therefore following anaerobic respiration there is oxygen debt in the cell, as oxygen is needed to break down the lactic acid produced.

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Answer 2

Answer:

Cellular respiration occurs among the living organisms by two methods. Those methods are aerobic respiration (Oxygen is involved) and anaerobic respiration (oxygen is not involved).