Causes and Spread of Infection

Reflective Account unit 265 1.1 vir social functions Viruses be too comminuted to be seen by the naked eye. They endt multiply on their own, so they have to overflow a host cell and take all(a) over its machinery in order to be able to have got more(prenominal) virus particles. Viruses consist of genetic actuals (DNA or RNA) surrounded by a protective coat of protein. They be equal of latching onto cells and getting inside them. The cells of the mucous membranes, much(prenominal) as those lining the respiratory passages that we breathe through, argon particularly open to virus attacks be curtilage they are not covered by protective peel off. bacterium bacteria are beings made up of just integrity cell. They are capable of multiplying by themselves, as they have the power to divide. Their shapes vary, and doctors use these characteristics to break away them into groups. Bacteria exist everywhere, inside and on our bodies. Most of them are completely harm less and some of them are very useful. besides some bacteria can cause diseases, either because they discontinue up in the wrong repoint in the bole or simply because they are designed to invade us.

Fungi all of a diverse group of eukaryotic single-celled or multinucleate organisms that live by decomposing and take up the organic material in which they grow, comprising the mushrooms, molds, mildews, smuts, rusts, and yeasts, and classified in the country Fungi. Parasites; Organisms obtaining nourishment from or living one another organism (the host) for survival and ordinarily harming it and causi ng disease. Some parasites are in computeent! and some depend entirely on their hosts and separate sole(prenominal) when either one of them dies. Human parasites include bacteria, fungi, lice, viruses, and worms These are organism that feed on their hosts for example worms in the gut. 1.2 Viruses cause illnesses such as flue, HIv, Bacteria can cause food intoxication eg staphylococcus A .and fungi can cause skin diseases eg athletes foot infection, and parasites can use infection eg in humans...If you take to get a full essay, order it on our website: OrderCustomPaper.com

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