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- Question
Traveller's diarrhea is caused by
Options- A. enteropathogenic Escherichia coli (EPEC)
- B. entero invasive E. coli (EIEC)
- C. entero toxigenic E. coli (ETEC)
- D. entero haemorrhagic E. coli (EHEC)
- Correct Answer
- entero toxigenic E. coli (ETEC)
- 1. Which of the following species of Mycobacterium is positive for nitrate reduction test?
Options- A. M chelonei
- B. M fortuitum
- C. Mycobacterium tuberculosis
- D. All of these Discuss
- 2. Which of the following is used only in life-threatening situations when no other drug is adequate?
Options- A. Penicillin
- B. Tetracycline
- C. Chloramphenicol
- D. Streptomycin Discuss
- 3. Prodigiosin (red pigment) is produced by members of genus
Options- A. Hafnia
- B. Enterobacter
- C. Serratia
- D. Cirobacter Discuss
- 4. Algae are found in all of the following places except
Options- A. oceans
- B. soils
- C. lakes and streams
- D. associates with fungi Discuss
- 5. As the electron flow through the chains, much of their free energy is conserved in the form of ATP. This process is called
Options- A. oxidative phosphorylation
- B. electromotive potential
- C. dehydrogenations
- D. none of these Discuss
- 6. Which of the following is responsible for a musty or earthy flavor?
Options- A. Actinomycetes
- B. Flavobacterium
- C. both (a) and (b)
- D. Pseudomonas syncyanea Discuss
- 7. The greening of sausage may appear as a green ring not far from the casing, a green core, or a green surface. The cause of greening is the production of hydrogen peroxide by
Options- A. hetero-fermentative species
- B. catalase negative bacteria
- C. both (a) and (b)
- D. none of these Discuss
- 8. Which of the following is not true for the thermal resistance of the bacterial cells?
Options- A. Cocci are usually more resistant than rods
- B. Higher the optimal and maximal temperatures for growth, higher the resistance
- C. Bacteria that clump considerably or form capsules are difficult to kill
- D. Cells low in lipid content are harder to kill than other cells Discuss
- 9. The antibiotics which affords a broad spectrum of antimicrobial coverage against aerobic and anaerobic bacteria, rickettsiae, chlamydiae, and mycoplasmas is
Options- A. gentamicin
- B. tetracycline
- C. metronidazole
- D. vancomycin Discuss
- 10. The most important bacterium developing acidity in both low and high salt brines is
Options- A. L. lactis
- B. L. plantarum
- C. L. brevis
- D. B. subtilis Discuss
More questions
Correct Answer: All of these
Correct Answer: Chloramphenicol
Correct Answer: Serratia
Correct Answer: soils
Correct Answer: oxidative phosphorylation
Correct Answer: Actinomycetes
Correct Answer: both (a) and (b)
Correct Answer: Cells low in lipid content are harder to kill than other cells
Correct Answer: tetracycline
Correct Answer: L. plantarum
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