Param Publication
Grow Career Publication
Chapter 10: Respiration in Organisms
Cellular respiration takes place in the cells of all organisms. In the cell, the food (glucose) is broken down into carbon dioxide and water using oxygen. When breakdown of glucose occurs with the use of oxygen it is called aerobic respiration. Food can also be broken down, without using oxygen.
Why do we respire ?
We respire to use the oxygen, to oxidise our food and release energy. This is similar like burning but a slower process. It also needs respiratory enzymes .The job of your lungs is to provide your body with oxygen and to get rid of the waste gas, carbon dioxide. Your brain constantly gets signals from your body which detect the amount of oxygen and carbon dioxide in your blood.
