What are the different ways in which glucose is oxidised to provide energy in various organisms?

Explanation

There are two different ways in which glucose is oxidised to provide energy in various organisms : aerobic respiration, and anaerobic respiration. Aerobic respiration uses oxygen (of air) whereas anaerobic respiration takes place without oxigen.
(i) In aerobic respiration, the glucose food is completely broken down by the oxygen (of air) inhaled during breathing to form carbon dioxide and water, and a lot of energy is released.
(ii) In anaerobic respiration, the glucose food is incompletely broken down by micro-organisms like yeast in the absence of oxygen (of air) to form ethanol and carbon dioxide, but much less energy is released.