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Microbes and diseases by mairasadiq
 

Microbes and diseases by mairasadiq

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    Microbes and diseases by mairasadiq Microbes and diseases by mairasadiq Presentation Transcript

    • icrobes & iseases
    • Microbes  A microorganism or microbe is a microscopic organism, which may be a single cell or multicellular organism. The study of microorganisms is called microbiology
    • Diseases  A disease is an abnormal condition that affects the body of an organism. It is often construed as a medical condition associated with specific signs. It may be caused by factors originally from an external source, such as infectious disease, or it may be caused by pain, dysfunction, distress, social problems, or death to the person afflicted, or similar problems for those in contact with the person. In this broader sense, it sometimes includes injuries, disabilities, disorders
    • Bacteria bacteria are very small living cells with no nucleus. They come in various shapes and sizes. Viruses viruses are not cells, they just reproduce inside other living cells. They can take over a cell and make it produce more viruses. Microscopic fungi(moulds) moulds are made up of lots of tiny threads which grow over and inside their food. Moulds feed on dead things. They reproduce by releasing spores into the air.
    • Useful Microbes  Not all microbes turn food into nasty substances, but the result may be pleasant. Like cheese and yogurt
    • Harmful Microbes  Diseases occurs when harmful microbes enter in our body. Such diseases are called Infection.
    • Defence against disease  Dead and weakened microbes are injected into the body.tis is called vaccine.