SCIENCE
VIRUS AND BACTERIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They cause diseases
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They do not cause diseases
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They are of no use
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They attack only plants
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Detailed explanation-1: -Non-pathogenic bacteria are the ones that are incapable of causing any disease. They are also called non-infectious agents. They do not harm their host, instead can be beneficial to some.
Detailed explanation-2: -"Almost all other tissue types in the body are exquisitely sensitive to bacteria and their products. Now we have found a mechanism by which non-pathogenic bacteria block the inflammatory pathway and prevent cells in the G.I tract from responding as any other cell would respond.
Detailed explanation-3: -Non-pathogenic and probiotic bacteria do not cause an inflammation, but are nevertheless recognised by the human immune system. The elevated production of interleukin 10 in certain immune system cells leads to anti-inflammatory reactions, which in turn creates an active immunological tolerance.
Detailed explanation-4: -Nonpathogenic: Incapable of causing disease. For example, nonpathogenic E. coli are E. coli bacteria that do not cause disease, but instead live naturally in the large intestine.