Nitrogen Fixation

           Nitrogen fixation is a process by which atmospheric nitrogen (which is not usable form for the organisms) get converted into its compounds (ammonia, nitrates and nitrites) which can be used easily by organisms.            Nitrogen is an important constituent element of the proteins and the nucleic … Read more

Food Poisoning

           Food poisoning is a condition which occurs due to consumption of spoilt food. Food spoiling may be due to contamination by microorganisms, infestation by insects, degradation by enzymes present in food and oxidation of certain food components. This results production of the toxic substances in food.         … Read more

Harmful Microorganisms

             Many microorganisms are harmful and adversely affect not only humans but also animals and plants as they cause disease in them. Such disease-causing microorganisms are known as pathogens. A specific disease is caused by a specific pathogen. Disease causing Microorganisms in Humans:             Pathogens … Read more

Friendly Microorganisms

          Microorganisms play an important role in our lives. Some of them are beneficial and called friendly microorganisms, whereas some other are harmful and cause diseases. Friendly Microorganisms:           Microorganisms are useful in many ways, such as; Making in curd and bread. Commercially use in preparation of … Read more

Microorganisms

            In the living world, there are various kind of organism. Some organisms are huge sized like elephant and whale, some are small in size as ant and other small insects. But there are extremely small organisms also found which we normally cannot see. These extremely small organisms are called … Read more