What is cellular respiration?

Step-by-step solution

Cellular respiration is the utilisation of oxygen by cells for metabolism and energy production along with the production of harmful substances like carbon dioxide. As you have read earlier, oxygen (O2) is utilised by the organisms to indirectly break down simple molecules like glucose, amino acids, fatty acids, etc., to derive energy to perform various activities. Carbon dioxide (CO2) which is harmful is also released during the above catabolic reactions. It is, therefore, evident that O2 has to be continuously pr