is it possible to observe an aerobe with a negative oxidase test
Homework Answers
No it is not possible
Because oxidase negative mean that organism does'nt have cytochrome c oxidase which oxidases the reagent
Oxidase test is not related to type of respiration it is related to cytochrome c oxidase.
Use the dichotomous key below to find a Gram-negative organism that is oxidase negative, does not...
Use the dichotomous key below to find a Gram-negative organism that is oxidase negative, does not produce acid from lactose, and is urease negative. Staphylococcus . Micrococcus Streptococcus . Lactobacillus 1. Gram-positive A. Catalase+ 1. Acid from glucose... 2. Glucose- B. Catalase 1. Coccus. 2. Rod. II. Gram-negative A. Oxidase- 1. Acid from lactose a. Uses citric acid.. b. Citric acid 2. Lactose- a. Urease positive. b. Urease negative B. Oxidase 1. Rod. 2 Coccus Citrobacter Escherichia Proteus Salmonella Pseudomonas...
need help QUESTIONS All members of the family Enterobacteriaceae are oxidase negative (You may need to...
need help
QUESTIONS All members of the family Enterobacteriaceae are oxidase negative (You may need to review your IMVIC notes for this-don't worry, you have plenty of time to look at thosel) True False QUESTION 6 Both the catalase and oxidase tests work best when using fresh, solid culture and your metal loop for transferring your test organisms True False QUESTION 7 You just performed the oxidase test and observed a blue/purple color change only at 45 seconds. This would...
can someone tell me the results for these organisms in a gram test, oxidase test, 6%...
can someone tell me the results for these organisms in a gram test, oxidase test, 6% naCl test, and phenol red sucrose test : (just indicate if positive or negative) Vibrio parahaemolyticus, Plesiomonas shigelloides, Shigella flexneri, Yersinia enterocolitica, Vibrio cholerae, Aeromonas hydrophila, Alcaligenes faecalis, Salmonella choleraesuis
1. Which organisms are oxidase positive and negative 2. Which gram negative bacilli is the most...
1. Which organisms are oxidase positive and negative 2. Which gram negative bacilli is the most important in regards to foodborne outbreaks 3. What large family of gram bacilli are found in our intestines
The cultures of a set of patients grow gram-negative, oxidase-positive, urease positive and H2S- positive bacteria....
The cultures of a set
of patients grow gram-negative, oxidase-positive, urease positive
and H2S- positive bacteria. Using the key bellow, what
is the causative agent of these infections?
Gram reaction? Oxidase? Morphology? Yes No Rods Cocci Urea hydrolyzed? Citrate utilized? Yes Erysipelothrix Staphylococcus rhusiopathiae aureus No Yes No Klebsiella Yersinia pneumoniae enterocolitica H S produced? Yes No Indole produced? Bordetella bronchiseptica Brucella ceti Acetoin produced? (V-P test) Mannheimia haemolytica Yes No Aeromonas hydrophila Pasteurella multocida
BIOL2516K Spring 2020 Week 9 Results and Homework Name 2. What does the oxidase test determine?...
BIOL2516K Spring 2020 Week 9 Results and Homework Name 2. What does the oxidase test determine? Would you expect positive results in both aerobic and anaerobic species? 3. You accidentally mixed up the labeling of 2 pure cultures you incubated overnight. One is a Staphylococcus species and the other is a Streptococcus species. What could you do to identify the 2 tubes? Staphylococcus species are facultative anaerobes and Streptococcus species are aerotolerant anaerobes could you do to identibus species and...
Upon performing a nitrate test, you observe the following: No gas in the Durham tube, sediment,...
Upon performing a nitrate test, you observe the following: No gas in the Durham tube, sediment, and after addition of the nitrate reagents A & B, the media remained clear/yellow. The next step would be to add ______ to the tube. A. Bacteria B. Oxidase reagent C. Zinc D. Kovacs reagent
aeruginosa 4. Which families of organisms are differentiated by the Oxidase test? What reagent is used...
aeruginosa 4. Which families of organisms are differentiated by the Oxidase test? What reagent is used to test for Oxidase? 5. Which families of organisms are differentiated by the Catalase test? What is a positive test for catalase? 6. What substrate is used to test for the presence of the Coagulase enzyme? What does Coagulase do for a bacteria that has it?
What are the Selective Agents in the followings Micro Biology Tests * Oxidase Test *Catalase Test...
What are the Selective Agents in the followings Micro Biology Tests * Oxidase Test *Catalase Test *Methyl Red Test *Voges-Proskaurer Test *Sulfur Reduction Test *Citrate Utilization Test *Nitrate Reduction Test *Motility Test *Indole Production Test
The results of the following unknown bacteria sample would be: A B. Select one: a. Oxidase...
The results of the following unknown bacteria sample would be: A B. Select one: a. Oxidase positive and catalase positive b. Oxidase negative and catalase positive c. Oxidase positive and catalase negative d. Oxidase negative and catalase negative
Use the dichotomous key below to find a Gram-negative organism that is oxidase negative, does not produce acid from lactose, and is urease negative. Staphylococcus . Micrococcus Streptococcus . Lactobacillus 1. Gram-positive A. Catalase+ 1. Acid from glucose... 2. Glucose- B. Catalase 1. Coccus. 2. Rod. II. Gram-negative A. Oxidase- 1. Acid from lactose a. Uses citric acid.. b. Citric acid 2. Lactose- a. Urease positive. b. Urease negative B. Oxidase 1. Rod. 2 Coccus Citrobacter Escherichia Proteus Salmonella Pseudomonas...
need help
QUESTIONS All members of the family Enterobacteriaceae are oxidase negative (You may need to review your IMVIC notes for this-don't worry, you have plenty of time to look at thosel) True False QUESTION 6 Both the catalase and oxidase tests work best when using fresh, solid culture and your metal loop for transferring your test organisms True False QUESTION 7 You just performed the oxidase test and observed a blue/purple color change only at 45 seconds. This would...
The cultures of a set
of patients grow gram-negative, oxidase-positive, urease positive
and H2S- positive bacteria. Using the key bellow, what
is the causative agent of these infections?
Gram reaction? Oxidase? Morphology? Yes No Rods Cocci Urea hydrolyzed? Citrate utilized? Yes Erysipelothrix Staphylococcus rhusiopathiae aureus No Yes No Klebsiella Yersinia pneumoniae enterocolitica H S produced? Yes No Indole produced? Bordetella bronchiseptica Brucella ceti Acetoin produced? (V-P test) Mannheimia haemolytica Yes No Aeromonas hydrophila Pasteurella multocida
BIOL2516K Spring 2020 Week 9 Results and Homework Name 2. What does the oxidase test determine? Would you expect positive results in both aerobic and anaerobic species? 3. You accidentally mixed up the labeling of 2 pure cultures you incubated overnight. One is a Staphylococcus species and the other is a Streptococcus species. What could you do to identify the 2 tubes? Staphylococcus species are facultative anaerobes and Streptococcus species are aerotolerant anaerobes could you do to identibus species and...
aeruginosa 4. Which families of organisms are differentiated by the Oxidase test? What reagent is used to test for Oxidase? 5. Which families of organisms are differentiated by the Catalase test? What is a positive test for catalase? 6. What substrate is used to test for the presence of the Coagulase enzyme? What does Coagulase do for a bacteria that has it?
The results of the following unknown bacteria sample would be: A B. Select one: a. Oxidase positive and catalase positive b. Oxidase negative and catalase positive c. Oxidase positive and catalase negative d. Oxidase negative and catalase negative
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