Causes and Spread of Infection

Reflective Account unit 265 1.1 vir single-valued functions Viruses be too fine to be seen by the naked eye. They endt multiply on their own, so they have to overflow a host cell and take any over its machinery in order to be able to halt 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, such(prenominal) as those lining the respiratory passages that we breathe through, be particularly open to virus attacks be earn they are not covered by protective bark. bacterium bacteria are organisms 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 harmless and some o f them are very useful. besides some bacteria can cause diseases, either because they discontinue up in the wrong postal service 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 riveting the organic material in which they grow, comprising the mushrooms, molds, mildews, smuts, rusts, and yeasts, and classified in the estate Fungi. Parasites; Organisms obtaining nourishment from or living one another organism (the host) for survival and ordinarily harming it and causing disea se. Some parasites are in computeent and som! e depend entirely on their hosts and separate solitary(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 drunkenness eg staphylococcus A .and fungi can cause skin diseases eg athletes foot infection, and parasites can use infection eg in humans...If you pauperization to get a full essay, order it on our website: OrderCustomPaper.com

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