Discussion
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- Question
All bacteria that inhabit the human body are
Options- A. heterotrophs
- B. chemolithotrophs
- C. autotrophs
- D. phototroph
- Correct Answer
- heterotrophs
- 1. Treponema species from human oral cavity can be selected by using
Options- A. pH of the medium
- B. incubation temperature
- C. cell size and motility
- D. all of these Discuss
- 2. Peptone water and nutrient broth are
Options- A. selective media
- B. enriched media
- C. basal media
- D. none of these Discuss
- 3. When a substance is added to a liquid medium which inhibits the growth of unwanted bacteria and favors the growth of wanted bacteria, it is known as
Options- A. differential medium
- B. enriched medium
- C. enrichment medium
- D. selective medium Discuss
- 4. A disease producing species occurring in a mixed culture can often be selected on the basis of its
Options- A. pathogenic properties
- B. special carbon source
- C. special nitrogen source
- D. none of these Discuss
- 5. Which of the following hint(s) suggest/s that a given specimen is likely to contain anaerobic bacteria?
Options- A. Gas in specimen
- B. Foul odour
- C. Presence of sulphur granules
- D. All of these Discuss
- 6. Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni?
Options- A. Vacomycin
- B. Polymyxin
- C. Trimethoprim
- D. None of these Discuss
- 7. Which of the following methods is most likely to be quantitative?
Options- A. Dilution and plating
- B. Gram staining
- C. Wet mount
- D. None of these Discuss
- 8. Plate counts are often reported as
Options- A. cfu
- B. cfu/ml
- C. Both (a) and (b)
- D. thousands/ml Discuss
- 9. When a substance is added to a solid medium which inhibits the growth of unwanted bacteria but permits the growth of wanted bacteria, it is known as
Options- A. differential medium
- B. enriched medium
- C. enrichment medium
- D. selective medium Discuss
- 10. Cell size and cell number can be measured using
Options- A. hemocytometer
- B. coulter counter
- C. petroff-hausser counting chamber
- D. none of these Discuss
Cell Cultures and Characteristics problems
Search Results
Correct Answer: cell size and motility
Correct Answer: basal media
Correct Answer: enrichment medium
Correct Answer: pathogenic properties
Correct Answer: All of these
Correct Answer: None of these
Correct Answer: Dilution and plating
Correct Answer: cfu/ml
Correct Answer: selective medium
Correct Answer: coulter counter
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