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- Question
Humans become infected with Mycobacterium tuberculosis most frequently by
Options- A. inhalation
- B. ingestion
- C. contact
- D. inoculation
- Correct Answer
- inhalation
- 1. Generation time of Escherichia coli is
Options- A. 20 minutes
- B. 20 hours
- C. 20 days
- D. 200 hours Discuss
- 2. What are Blue-Green bacteria called?
Options- A. Acquaobacteria
- B. Cyanobacteria
- C. Protozoa
- D. None of the above Discuss
- 3. Which of the following toxin causing botulism is less toxic to human beings?
Options- A. Type A
- B. Type B
- C. Type C
- D. None of these Discuss
- 4. Which of the following disinfectants act by disrupting microbial membranes?
Options- A. Cationic detergents
- B. Halogens
- C. Heavy metals
- D. Aldehydes Discuss
- 5. Autotrophic bacteria are those which
Options- A. make their own food
- B. form a long chain glycocalyx
- C. are highly susceptible to penicillin
- D. produce a blue-green pigment Discuss
- 6. The number of ATP molecules produced from one glucose molecule by a bacterium producing lactic acid is
Options- A. greater than producing ethanol
- B. lesser than producing ethanol
- C. approximately equal to producing ethanol
- D. none of these Discuss
- 7. Enzymes are
Options- A. organic compounds produced by living organism
- B. inorganic compounds
- C. organic as well as inorganic compounds
- D. all of these Discuss
- 8. The thallus of a mold consists of
Options- A. mycelium
- B. spores
- C. both (a) and (b)
- D. none of these Discuss
- 9. Which of the following serotypes of Salmonella does not produce H2S?
Options- A. S choleraesuis
- B. S paratyphi A
- C. Both (a) and (b)
- D. None of these Discuss
- 10. DNA gyrase is inhibited by
Options- A. tetracycline
- B. nalidixic acid
- C. both (a) and (b)
- D. cephalosporin Discuss
More questions
Correct Answer: 20 minutes
Correct Answer: Cyanobacteria
Correct Answer: Type B
Correct Answer: Cationic detergents
Correct Answer: make their own food
Correct Answer: approximately equal to producing ethanol
Correct Answer: organic compounds produced by living organism
Correct Answer: both (a) and (b)
Correct Answer: Both (a) and (b)
Correct Answer: nalidixic acid
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