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The importance uses of micro organisms.

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The importance uses of micro organisms Microbes are the foundation of life as they're everywhere. They are in the air we breathe, in the food we eat, in the ground we walk on and even inside us. There are more microbes on a person's hand than there are people on the entire earth. Microorganisms are by dictionary definition 'microscopic organisms'. They do many jobs in an extremely wide field. Without them the planet wouldn't survive, as we know it. We couldn't digest our food, neither of course could animals, plants couldn't grow, rubbish and waste wouldn't decay and there would be a lot less oxygen in the air we breathe. Many people believe they were the very start of life, the start of evolution, which in turn led to humans, you and me. Microorganisms can be split into different groups, each with their own characteristics and 'jobs'. There are Bacteria, Fungi, Protozoan and Viruses (although some people believe that viruses are not alive.) Bacteria are a simple one-cell organism, measuring on average from 0.3 to 2 microns (0.001mm) ...read more.


Fungi cannot produce food because they lack chlorophyll, so they absorb food from their surroundings. Fungi can be found living on the land and in the water, living on decaying material. Fungi helps in the process of decomposition that breaks down complex material into simple compounds, this replenishes the soil with nutrients in a form that can be used by plants. Fungi are used greatly in food and drink industries. Mushrooms and truffles are considered delicates and with the making of cheese, moulds are added to Roquefort and Camembert to ripen and provide them with a characteristic flavour. Yeast is used for two main jobs. It is used in the process of fermentation where it breaks down sugar into carbon dioxide and alcohol. This is used for alcoholic beverages. Yeast is also used in baking as it gives off carbon dioxide. This causes bread to rise from the carbohydrates. Some people also eat yeast for protein and vitamin B. Moulds have been found to produce very important antibiotics, which weaken or kill bacteria and other organisms that can cause disease. Penicillin was the first and most important antibiotic, which was discovered in 1928 by Sir Alexander Fleming. ...read more.


This is why it is extremely important to create vaccines, as viruses have the capacity can wipe out massive numbers i.e. epidemics. There are two methods used, either killing the virus and then injecting it into the body, which causes the body to produce antibodies stored in memory cells, or virologists select mild harmless forms of the virus. These stimulate the body, but no visible harm is caused. These are a few good microbes and their jobs. In conclusion I can argue that, there are many microorganisms, which do us, harm, but there are also many, that we could not live without. They help inside and outside the body. Even the bad organisms have taught us much about life and what we are made up of. Without them we wouldn't understand about how we and other life forms work. As we now understand many types of organisms, we can prevent them from affecting us through vaccines. Bacteria especially have been given a bad name because they can cause fatal diseases but we couldn't live without some beneficial types. There are thousands of uses for them and I am sure there will be more, which we will find in the future. Resources: 'World book millennium 2000 encyclopaedia' 'www.microbe.org' 'www.ucmp.Berkeley.edu/bacteria/bacteria.html' 'www.dictionary.com' 'http://helios.bto.ed.ac.uk/bto/microbes/microbes.htm' ...read more.

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