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Microbiology

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Microbiology
Microorganisms are classified according to their structure. By means of flow charts, diagrams and tables explain the differences between Viruses, Bacteria, Cyanobacteria, Achaea and Fungi.
Bacteria or bacterium are unicellular microorganisms. They are essentially only a few micrometres long and form of various shapes including the spheres, rods and spirals.
A BACTERIAL CELL

Illustration courtesy of Wikipedia.

A Virus (from the Latin noun virus, meaning toxic or poison) is a sub-microscopic particle that infect the cells of a biological organism.

Illustration courtesy of mc3cb.com.

BACTERIA
VIRUS
STRUCTURE
Bacteria are unicellular organisms which are prokaryotic in nature due to the absence of a nucleus. Bacterium do not have organelles within their structure like the Endoplasmic Reticulem, The Golgi Apparatus or Vacuoles. Bacteria consist of ribosomes, a nucleoid that houses a strand of DNA material. (Extra loose DNA called plasmids can be found present for replication and reproduction.) Bacteria have a rigid wall and a cell membrane surrounding cytoplasm inside the cell. Some bacterium contains structures called flagella which aid in movement.
A virus is not a cell as it is not considered as living. All viruses have a protein coat that holds a coiled string of nucleic acid. (The genetic material either RNA or DNA.) A virus has no internal cellular structure, absent of both a cell wall and membrane.
OBJECTIVE
&
TREATMENTS
Dependent on the type of bacterium, bacteria can do both good and bad things to and for the human body. Bacteria can be responsible for the cause of a disease. Pathogenic bacteria cause infectious diseases like Mycobacterium Tuberculosis and Streptococcus Salmonella, though we need certain types of bacteria in order to stay alive. Human bacterial flora is a friendly bacterium that’s beneficial to the body. Gut flora is the term for the many bacteria living in our digestive tracts. To eliminate an infectious



References: Diffen.com. 2014.Bacteria vs Virus - Difference and Comparison | Diffen. [online] Available at: http://www.diffen.com/difference/Bacteria_vs_Virus [Accessed: 04 Feb 2014] Microbeworld.org. Deena T Kochunni, J. H. 2014. Differencebetween Bacteria and Cyanobacteria ~ Biology Exams 4 U. [online] Available at: http://www.biologyexams4u.com/2012/10/difference-between-bacteria-and.html [Accessed: 04 Feb2014].

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