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Why is the blood brain barrier considered both good and bad.
How does an organism with a capsule such as K. pneumoniae, provide the organism with pathogenic abilities to avoid destruction by the host cell.
Lab mice are immunized with a measles vaccine. When the mice are challenged with the measles virus to test the strength of their immunity.
How does an active infection occur in the urinary tract? Which factors in the urinary tract predispose humans toward urinary tract infections.
Take the following list of eight cells, or components of cells, and: (a) list them in order from largest to smallest; (b) say whether each is best viewed with the naked eye, light microscope, electr
There are six characteristics of infectious disease agents which determine whether or not an infectious disease will be transmitted to and infect a host.
For each method listed, indicate the mode of action.
Pathogens, toxins, infections, and disease; Microbial Applications and Industrial Use; Biotransformations; Microbial decomposition and global recycling.
You have to use your knowledge of microbes from studying this topic to produce the text of an information leaflet about nv for nursing staff who work in care homes.
Give a description of the process of bacterial transduction and give specific details on how you would prove that transduction had occurred between bacteria.
Microbiology was a study of living organisms that scientists had some trouble proving to the general public that they even existed. One of the reasons for this was that people could not see the orga
What kind of vaccine (live, dead, whole, viral protein, etc) would be the best for a virus that causes a mild disease in individuals with a heavy cytolytic response.
What are three reasons one might a situation in which bacterial colonies are found on the first section of a streak plate, but not on sections two and three.
Some species of bacteria that live at the surface of sediment on the bottom of lakes are facultative anaerobes; that is, they are capable of either aerobic or anaerobic respiration.
List 20 antimicrobials used in food manufacturing and specify the maximum allowance of each one in food.
One-hundred grams of fresh tomatoes were placed in a stomacher and blended for 45 seconds. A 1 mL sample of blended tomatoes was placed in tube containing 9 mL of Trypticase Soy Broth.
Bacteria have three basic recognizable shapes. Name and describe the shapes, discuss differences in the groups physiologically and biologically and give examples of each type that may be found in yo
What are the most common microorganisms found in the nose? Oropharyx, Nasopharynx? Tonsillar crypts? Lower respiratory tract? Oral cavity? Eye? External ear? Stomach? Small intestine? Colon? Genitou
What are the functions of the following pharmaceuticals: growth hormone, human rennin, interferons, tissue plasminogen activator, and interleukin-2.
Using Streptococcus pneumoniae as an example, this solution describes how serological tests can distinguish between multiple different serotypes of a bacterial species.
Compare and contrast the mechanisms of pathogenicity developed by foodborne enteropathagenic E. coli, Salmonella and Shigella species that cause infections in the human host. Include : adherence, in
Define the term "quorum sensing" and describe (at the cellular/biochemical level) the mechanism by which microbes participate in this phenomenon.
Compare and contrast gram-positive and gram-negative cell walls with regard to (a) sensitivity to antimicrobial agents, (b) resistance to phagocytosis, (c) chemical composition, and (d) decolorizati
Explain how culturing and organism on several different types of media can help identify an organism in a relatively short period of time.
Explain why anaerobic organisms are generally not the enteric pathogens seen in a routine fecal specimen. Why are these anaerobic organisms not seen in a routine fecal culture.