Discussion
Home ‣ Microbiology ‣ Identification of Bacteria Comments
- Question
What is the order of reagents used in the Gram stain?
Options- A. Crystal violet, iodine, safranin, decolorizer
- B. Crystal violet, iodine, decolorizer, safranin
- C. Safranin, crystal violet, decolorizer, iodine
- D. Crystal violet, safranin, iodine, decolorizer
- Correct Answer
- Crystal violet, iodine, decolorizer, safranin
- 1. Which of the following inference(s) indicate(s) the ability of an organism to utilize citrate as a sole source of carbon in Simmon's citrate medium?
Options- A. Blue colour
- B. Appearance of growth
- C. Both (a) and (b)
- D. None of these Discuss
- 2. The deinococci are gram-positive cocci and rods that are distinctive in their unusually great resistance to
Options- A. radiation
- B. desiccation
- C. both (a) and (b)
- D. extreme temperatures Discuss
- 3. Which of the following is a primary stain for acid fast staining of mycobacteria?
Options- A. Crystal violet
- B. Carbol fuchsin
- C. Geimsa
- D. Methylene blue Discuss
- 4. Which of the following shows a positive urease test?
Options- A. Proteus
- B. Klebsiella
- C. Both (a) and (b)
- D. None of these Discuss
- 5. Which of the following(s) is/ are oxidase-positive bacteria?
Options- A. Vibrio
- B. Neisseria
- C. Pseudomonas
- D. All of these Discuss
- 6. Which of the following is a substitute for crystal violet used in gram-staining procedure?
Options- A. Methylene blue
- B. Bromocresol green
- C. Safranin
- D. Phenolpthalene Discuss
- 7. Production of acetoin can be detected by which of the following tests?
Options- A. Citrate test
- B. Voges-Proskauer test
- C. Methyl red test
- D. Indole test Discuss
- 8. Gram staining was developed accidentally in 1884 by
Options- A. Alexander Fleming
- B. Hans Christian Gram
- C. Joseph Christian Gram
- D. Robert Gram Discuss
- 9. What is the colour of gram -postive bacteria on a gram staining?
Options- A. Purple
- B. Pink
- C. Colourless
- D. Green Discuss
- 10. The production of sufficient acid by fermentation of glucose leads to decrease in pH such that pH of the medium falls below 4.5. Which of the following test can detect it?
Options- A. Indole test
- B. Methyl red test
- C. Citrate utilization test
- D. Voges-Proskauer test Discuss
Identification of Bacteria problems
Search Results
Correct Answer: Both (a) and (b)
Correct Answer: both (a) and (b)
Correct Answer: Carbol fuchsin
Correct Answer: Both (a) and (b)
Correct Answer: All of these
Correct Answer: Methylene blue
Correct Answer: Voges-Proskauer test
Correct Answer: Hans Christian Gram
Correct Answer: Purple
Correct Answer: Methyl red test
Comments
There are no comments.More in Microbiology:
Programming
Copyright ©CuriousTab. All rights reserved.