June 11, 2017 Nisha Rijal Bacteriology, Microbiology for Beginners 12 Most Probable Number (MPN) is a method used to estimate the concentration of viable microorganisms in a sample by means of replicate liquid broth growth in ten-fold dilutions. Good Luck with this quiz! Overview. Bacterial. In a Gram stain test, these organisms yield a positive result. 207 Science Hall 2237 Osborn Dr. Ames, IA 50011. Microbiology Program. This test can find and identify the germs that cause a urinary tract infection (UTI). Supporting Laboratory Results. Bacterial. The bacteria that are typically present and on the surface of the human body, and which are typically harmless or even helpful to humans are called the "_____" microbiota A. endemic B. normal Compare various serological test results. Your doctor tells you they want to do a urine culture.It’s a test to check for germs or bacteria in your pee that can cause a urinary tract infection ().. This challenging biology test on cells is designed to test your knowledge on this topic to the extremes. A urine culture is a test that can detect bacteria in your urine. Fungal. Summarize antibiotic susceptibility testing and results. Biochemical Test of Bacteria. OF-glucose deeps contain glucose as a carbohydrate, peptones, bromothymol blue indicator for Hugh-Leifson's OF medium or phenol red for King's OF medium, and 0.5% agar. The Gram stain is a test used to identify bacteria by the composition of their cell walls, named for Hans Christian Gram, who developed the technique in 1884. Oxidative/fermentation glucose test (OF glucose test) is a biological technique utilized in microbiology to determine the way a microorganism metabolizes a carbohydrate such as glucose (dextrose). The Enterotube™ II – Procedure, Result Interpretation, Merits and Limitations. Bacteria: DNA in most is circular; bidirectional replication from single origin & replication fork is where DNA is unwound Archaea: circuar but may have more than one origin Eukaryotic: linear chromosome w/ many replication forks Phone: 515-294-1630 Contact us: microundergrad@iastate.edu Interpret various microbiology test results. Identification of bacteria. Increased WBC Count. I challenge you to score more than 60% on this quiz! Malonate test is a colorimetric test of the ability of bacteria to use malonate as a source of carbon, the endpoint of which is the production of alkaline metabolites that induce a color change. Here’s why knowing whether the result is … Viral. A cell is the basic fundamental unit of all biological organisms. Infectious Diseases. These tests depend on the presence of certain enzymes, such as catalase, oxidase, urease, gelatinase, etc., produced by the bacteria. 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