Voges proskauer - Study guides, Class notes & Summaries

Biochemically, the Enterobacteriaceae are gram negative rods that: - Answer Ferment glucose, reduce nitrate to nitrite, and are oxidase negative. THe ortho-nitrophenyl-Beta-galactopyranoside (ONPG) test is most useful when differentiating: - Answer Shigella spp. from some strains of Escherichia coli The Voges-Proskauer (VP) test detects which end product of glucose fermentation? - Answer Acetoin At which pH does the methyl red(MR) test become positive? - Answer pH of 4.5 ...

Types of Tests (4) - ANSWER-TSI Citrate Carbohydrate Fermentation Test w/ Durham Tubes MR/VP TSI Test - ANSWER-Triple Sugar Iron Test (slant) both a streak and a slant Citrate test - ANSWER-typically only a streak is done but both a streak and slant may be performed MR/VP test - ANSWER-Methyl Red Voges- Proskauer TSI Composition - ANSWER-Basic T Soy Agar plus: 1. glucose, lactose, & sucrose. Lac and Suc are 10x the conc. of glucose 2. Phenol red (pH indicator) pH 6...

metabolism correct answers the sum of all chemical reactions that occur in a cell acid correct answers staph aureus ferments mannitol and produces salmonella correct answers typhoid fever, gastroenteritis, and osteomyelitis are all caused by which of the following bacteria lysogenic cycle correct answers which viral infection cycle includes a step where their DNA integrates into host cell DNA mixed-acid fermentation correct answers what is the methyl red test testing for antisepti...

Simmons citrate test: enzyme correct answer: citrate permease Simmons citrate test: pH indicator correct answer: Brothymol blue Results of a positive Simmons citrate test correct answer: Turns blue can use sodium citrate as sole carbon source Results of a negative Simmons citrate test correct answer: Stays green color --> pH doesn't change doesn't contain the enzyme Malonate test: enzyme correct answer: Succinate dehydrogenase What does the Malonate test do? correct an...

Enterobacteriaceae Exam Questions With Complete Solutions.

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...

MicL 224 Final Luquette Question and answer 2023What enzyme does C. Freundii have that allows it to produce hydrogen sulfide (H2S) in the deamination of cysteine? cysteine desulfurase If a bacteria is using a sugar by oxidative means and not fermentation in the carbohydrate test the phenol red indicator will cause the media to be what color? Red Oxidative means Respiration TSI media contains all of the following except 1.0% maltose TSI media contains 0.1% glucose...

Identifies organisms that can synthesis the enzyme Phenylalanine Deaminase correct answer: Phenylalanine Deaminase Test To see if Amylase will break down starch (amylose: long chains of glucose) into individual glucose units. correct answer: Starch Hydrolysis Test Identifies organisms that can synthesis and secrete the enzyme Gelatinase correct answer: Gelatin Hydrolysis Test Identifies organisms that can synthesize and secrete the enzyme Deoxyribonuclease (DNase) correct answer: DN...

LAB FINAL STUDY GUIDE Exercise 23 – Bio chemical tests 1. Experiment: CATALASE PRODUCTION a. Type of Medium: Nutrient Agar Slant b. Enzymes: Catalase c. Substrate: Hydrogen Peroxide d. Potenital Products: H20, 02 e. Reagents: 3% Hydrogen Peroxide - Expected Results: S. auerus will produce a positive result for catalase and will produce bubble. If negative no bubbles present - Positive Control: Staphylococcus aureus - Color Change: No color change 2. Experiment: DURHAM TUBE SUGAR FE...

This well-organized folder will help medical students systematically study clinical microbiology, understand the clinical implications of infections, and prepare for exams and clinical practice.