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- Question
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
- Correct Answer
- both (a) and (b)
- 1. 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
- 2. Which of the following shows a positive urease test?
Options- A. Proteus
- B. Klebsiella
- C. Both (a) and (b)
- D. None of these Discuss
- 3. Which of the following(s) is/ are oxidase-positive bacteria?
Options- A. Vibrio
- B. Neisseria
- C. Pseudomonas
- D. All of these Discuss
- 4. The primary stain of Gram's method is
Options- A. safranin
- B. phenolpthalene
- C. crystal violet
- D. methyl red Discuss
- 5. The gram-negative organisms is
Options- A. Actinomyces
- B. Bacillus
- C. Clostridium
- D. None of these Discuss
- 6. 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
- 7. 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 Discuss
- 8. 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
- 9. 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
- 10. Gram staining was developed accidentally in 1884 by
Options- A. Alexander Fleming
- B. Hans Christian Gram
- C. Joseph Christian Gram
- D. Robert Gram Discuss
Identification of Bacteria problems
Search Results
Correct Answer: Carbol fuchsin
Correct Answer: Both (a) and (b)
Correct Answer: All of these
Correct Answer: crystal violet
Correct Answer: None of these
Correct Answer: Both (a) and (b)
Correct Answer: Crystal violet, iodine, decolorizer, safranin
Correct Answer: Methylene blue
Correct Answer: Voges-Proskauer test
Correct Answer: Hans Christian Gram
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