Write briefly about bacteria . Also …

Bacteria are known for their simple body design. They are single-celled microorganisms with the absence of the nucleus and other cell organelles, hence, they classified as prokaryotic organisms.

Useful Bacteria

Not all bacteria are harmful to humans. There are some bacteria which are beneficial in different ways. Listed below are few benefits of bacteria:

1. Convert milk into curd – Lactobacillales or lactic acid bacteria.
2. Ferment food products – Streptococcus and Bacillus.
3. Used in the preparation of bread, cakes and other bakery food products.
4. Help in digestion and improving the body’s immunity system.
5. Production of antibiotics which is used in the treatment and prevention of bacterial infections.

Harmful Bacteria

There are bacteria that can make us seriously sick. They are responsible for many of the infectious diseases like pneumonia, tuberculosis, diphtheria, Syphilis, tooth decay, etc.

There are several methods that can sterilize or disinfect many of these harmful and disease-causing bacteria. These methods include- application of heat, disinfectants, UV radiations, pasteurization, boiling, etc.