Types of bacteria on the basis of oxygen requirement

Oxygen is indispensable for respiration as the body uses oxygen to ‘burn’ food molecules. Animals take oxygen in when inhaling and give off CO2 when exhaling. Oxygen makes up almost 21 percent of the total gases in the air, with most of the residual gas being physiologically inactive nitrogen. Besides humans and animals, oxygen is … Continue reading Types of bacteria on the basis of oxygen requirement