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Pathogenic and Non-Pathogenic Microorganisms - Term Paper Example

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The term paper “Pathogenic and Non-pathogenic Microorganisms” explores categorization of bacteria, yeast, protozoa, and algae which are useful (help to maintain the balance and regulate chemicals in an ecosystem) and harmful (have a potential of provoking diseases) for the human body…
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Pathogenic and Non-Pathogenic Microorganisms
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Download file to see previous pages Like any other kind of organism, microorganisms exhibit similar characteristics such as reproduction, nutrition, movement, respiration, response to stimuli and growth. Pathogenic microorganisms are capable of causing diseases in two ways. The first and common way is when the pathogenic microorganism gains access to the host and is able to adhere to and damage the host tissues. Another form of pathogenic microorganism may not damage the host tissues. This form is capable of causing disease through the accumulation of waste products.
Principally, the pathogenic microorganism has some distinct features that distinguish them from the non-pathogenic microorganism. Research has found out that most of the pathogenic microorganisms possess distinct anatomical features that curb them from being digested by host’s enzymes. Others have distinct external attachments that help them during penetrating to the host. It has been found that most of the pathogenic microorganisms such as Shigella species possess protein called actin that helps them penetrate the host.
Research conducted by Haug, et al, 2010   reveals that some pathogenic microorganism such as salmonella strains and E. coli are capable of producing surface protein termed as an invasion. Invasion is a protein that has the potential of disrupting the plasma membrane of the host cell. Following the disruption, the microorganism can get access into the system. Furthermore, other pathogenic microorganisms such as Shigella species and Listeria species have been found that they possess protein called actin that enables them to move through the cytoplasm.
Possession of these distinct features is one of the ways in which the pathogenic microorganisms differ from the non-pathogenic microorganism. Another aspect distinguishing the pathogenic microorganism from the non-pathogenic microorganism is the fact that they have special enzymes that protect them from the phagocytosis. ...Download file to see next pagesRead More
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