a note on useful microbes plz plz answer quickly
Answers
Half the oxygen is produced by plants, and half is produced by algae and photosynthetic bacteria. Many types of fungus and other microbes release enzymes that digest dead stuff .These microbes turn trash to treasures by recycling nutrients back into the soil. Microbes are also essential in breaking down animals waste, and are therefore present in the treatment of raw sewage.
Some microbes live on us without harming or helping us. Some may be eating our dead skin cells while guarding our skin from harmful bacteria. There are some, who live in some digestive system and help to break down food. Some harm us such as strains of bacteria and viruses that cause diseases like malaria, strep throat etc. Like algae, many microbes are critical food sources for like fish or insects.
Bacteria called lactic acid bacteria (LAB) grow in milk to convert it into curd. Yeast called Saccharomyces cerevisiae ferments certain dishes such as idly and dose, are made from dough fermented by microbes. To impart particular texture, taste and flavor to cheese. Bacteria and fungi are used microbes are used to produce industrial products like lactic acid, acetic acid and alcohol, which are used in a variety of processes in the industry.
To kill disease-causing harmful microbes Antibiotics like penicillin’s are used in controlling infectious diseases like diphtheria, whooping cough and pneumonia. Microbes are being used to treat sewage water by the process of activated sludge formation and this helps in recycling of water in nature. Methane biogas is produced by Methanogens.
Microbes from Biogas are used as a source of energy in rural areas. To kill harmful pests, a process called as bio-control can be used. The bio-control measures help us to avoid heavy use of toxic pesticides for controlling pests. Thus, microbes play an important role in the welfare of human society due to their diverse usage.