Discussion
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- Question
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
- Correct Answer
- selective medium
- 1. Plate counts are often reported as
Options- A. cfu
- B. cfu/ml
- C. Both (a) and (b)
- D. thousands/ml Discuss
- 2. 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
- 3. 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
- 4. All bacteria that inhabit the human body are
Options- A. heterotrophs
- B. chemolithotrophs
- C. autotrophs
- D. phototroph Discuss
- 5. 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
- 6. 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
- 7. The solidifying agent commonly used in preparation of media is/are
Options- A. agar
- B. silica gel
- C. both (a) and (b)
- D. none of these Discuss
- 8. Protein portion of an enzyme when it is combined with organic molecule is termed as
Options- A. apoenzyme
- B. co-enzyme
- C. holoenzyme
- D. co-factors Discuss
- 9. Many enzymes consists of a protein combined with low molecular weight organic molecule called as
Options- A. apoenzyme
- B. co-enzyme
- C. holoenzyme
- D. co-factors Discuss
- 10. The inactive protein from of enzyme is
Options- A. apoenzyme
- B. enzyme
- C. haloenzyme
- D. cofactor Discuss
Cell Cultures and Characteristics problems
Search Results
Correct Answer: cfu/ml
Correct Answer: Dilution and plating
Correct Answer: None of these
Correct Answer: heterotrophs
Correct Answer: cell size and motility
Correct Answer: coulter counter
Correct Answer: both (a) and (b)
Correct Answer: apoenzyme
Correct Answer: co-enzyme
Correct Answer: apoenzyme
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