microbes and humans. The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system‚ and a few are beneficial. In fact‚ the relationship between microbes and humans is delicate and complex. Benefits of Microbes Microbes are useful for us in many ways in various industries. Production of Foods Microbes are a key component in both home and industrial food preparation. + Lactic acid bacteria are used to make yogurt‚ cheese‚ sour cream
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it was reported that the injection of DNA encoding an antigenic protein of influenza virus conferred protective immunity in mice [97]. Many papers have described and reviewed the protective immunity induced by DNA against a large variety of viruses [20]‚ bacteria [90] and protozoa [47] in murine models. DNA immunisation has also been investigated for the treatment of cancer [6] and autoimmune diseases [72]. Trials are now being developed for human DNA vaccines against several diseases such as AIDS
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|An amoeba often has two nuclei |bacteria and microalgae can also | | | |because of its size |feast on the amoeboid contents. | | |Paramecium |paramecium and other fresh |Paramecia are a key link in detritus-based food| | | |water protozoans have special |webs in aquatic ecosystems
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system of classification and how many groups does it include? Baltimore classification is a classification system which places viruses into one of seven groups depending on a combination of their nucleic acid‚ strandedness‚ and method of replication. This system indicates how to proceed with further research‚ since by classifying viruses by their genome all viruses within a certain category behave in a similar fashion. http://www.reference.com/browse/wiki/Virus_classification 2. What three
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1 Identify the differences between bacteria‚ viruses‚ fungi and parasites. Bacteria are a living cell organism that can survive inside our body and other non living objects as well. There are both good and bad bacteria’s and the good bacteria is known to helps fight against the bad bacteria that makes its way into our bodies. According to www.righthealth.com‚ less than 1% of bacteria are actually harmful to us. In fact‚ we couldn’t survive without bacteria in our body. Bacterial infection is
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Report Microbiology Introduction Bacteria can be found almost anywhere. For human life‚ some help us‚ some hurt us‚ and others are neutral. It is now known that good bacteria‚ or normal microflora‚ can reach 1014 microbial cells. This is far more than the 1013 cells that make up the human body (Tannock‚ 1995). The total number of bacteria on Earth is estimated to be around 4-6 x 1030 (Horner-Devine‚ 2004). It is important to know the extent of bacteria‚ how they live‚ and how they are transmitted
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secretions acidify the skin. pH at about 3.5-5 (discourage bacterial growth) The skin itself is a tough and intact barrier of dead skin cells that most bacteria and viruses cannot penetrate. - - 2) Protective fluids - The body secretes protective fluid tha trap foreign agents - Lysozyme - enzyme that attacks the cell wall of many bacteria - The body also excretes several body fluids such as saliva‚ tears and perspiration containing protective substance 3) Defenses of the respiratory
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multiple. Our bodies get infections from pathogenic microorganisms that cannot observe by naked eye such as • Bacteria. These one-cell organisms are accountable for diseases‚ such as urinary tract infections. • Viruses. Is an acellular agent smaller than bacteria consisting mainly of genetic material‚ that can be active in a close environments ranging from the common cold to AIDS. • Fungi. Fungus is a single celled organism. Fungus is larger than bacteria that infect superficial skin or body systems
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found in liquid feces. Occasionally trophozoites invade the wall of the colon‚ multiply‚ and pass into the circulation. III. Pathogenesis E. histolytica has a wide geographic distribution and is considered one of the most important human protozoan parasites. Amebiasis is usually
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diseases have lymphadenopahty as a secondary complication. Such as pathogenic Organisms are infections by various bacteria‚ viruses and fungus. This causes inflammation of the lymph nodes. Cancers of lymphoid system or cancers that have originated in a part of the body and metastasized to other locations may cause lymphadenophathy. However a healthy lymphatic system on the other hand gives us an excellent chance to avoid viruses‚ bacterial infections‚ parasites‚ respiratory disorders. You are in
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