Imvic - Study guides, Class notes & Summaries

Microbiology Lab - IMViC and SIM

IMViC

What does IMViC stand for? - Answer-Indole, Methyl Red, Voges-Proskauer, and Citrate test. What is the IMViC test used for? - Answer-Used to identify if gut bacteria to ensure water doesn't have pathogens such as salmanella. Indole test - Answer-Detects the presence of tryptophanase to break down tryptophan into indole. Indole test indicator - Answer-Kovac's reagent Positive indole test result - Answer-Produces red top layer Negative indole test result - Answer-Produces colo...

MIP 302 Final Test with Correct Answers What is Pseudosel selective for? - Answer-Pseudomonas Aerugionosa What is Pseudosel Differential for? - Answer-Isolation and identification of Pseudomonas aeruginosa What is in Pseudosel agar that makes it selective? - Answer-Cetrimide What pigments does P. Aeruginosa produce - Answer-Pyocynanin Is Pseudomonas Agar F selective or differential? - Answer-It is a differential medium, based on ability to produce fluorescein. What medium is the...

Why is the catalytic activity of enzymes essential to ensure and regulate cellular metabolism? correct answer: enzymes lower the activation energy for chemical rxn. Why are microorganisms able to cause diary products, such as milk, to sour or curdle? correct answer: microorganisms can break down the nutrients in the milk and cause it to sour or curdle. Give a reason why it is necessary for polysaccharides, such as starch or cellulose, to be digested outside of the cell even though di-sac...

Which of the following can be examined with an ordinary bright-field microscope? Wet mounts Heat-fixed specimens Chemical-fixed specimens All of the choices are correct. - Answer-All of the choices are correct. The most common method used by clinical microbiology labs for identifying bacteria are _________. - Answer-biochemical Which of the following tests can be used to distinguish Escherichia from Enterobacter? - Answer-IMViC Chlorination of water supplies represents an epidemiolo...

TSI correct answer: Triple Sugar Iron Yellow= acid production or fermentation of the sugars in the slant or butt. Gas production= indicated by the agar lifting up or breaking Red= negative or uninoculated Black= H2S production due to FeS precipitation (think salmonella or proteus) The source of Sulfur for H2S production by bacteria is the amino acid Cysteine TSI additional correct answer: Triple Sugar-Iron agar slants. is a differential medium containing 3 sugars called glucose...

Tests for Gram-negative bacteria Question and answer rated A+Name the three tests we did in lab IMViC test, TSI test, and Urea test What does the acronym IMViC stand for? Indole Methyl red Voges-Proskauer Citrate When performed together, what family of bacteria do the four tests of the IMViC test differentiate? Enterobacteriaceae Name four major bacteria in the family Enterobacteriaceae 1. Escherichia coli 2. Enterobacter aerogenes 3. Proteus vulgaris 4. Serratia m...

NDSU Microbiology Lab Final Exam Study Guide ...

MICRO REVIEW – ENTEROBACTERIACEAE Question and answer 100% solvedList some advantages and disadvantages of the use of the rapid identification systems. Advantages: fast, tests an expanded number of biochemical characteristics in a single multi-compartmented strip or tube Disadvantages: expensive, need computer program to identify What piece of information about your unknown should you have prior to using the rapid identification system? make sure it is gram negative, not gram positiv...