Bioniac

In this post we are going to discuss about the process of breathing and human respiratory system in brief. For the anatomy of digestive system post click  here Breathing   or   Respiration : •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 provided to the cells and CO2 produced by the cells have to be released out.  •This process of exchange of O2  from the atmosphere with CO2  produced by the cells is called breathing, commonly known as respiration. For the process of digestion post click  here Respiratory   Organ : Mechanisms of breathing vary among different groups of animals depending mainly on their habitats and levels of organisation. •Lower invertebrate...