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- Question
If radioactive bicarbonate was supplied to bacterial cells, which were actively synthesizing fatty acids, it is expected to find the bulk of the radioactivity in
Options- A. cellular bicarbonate
- B. the fatty acids
- C. the cytoplasmic membrane
- D. nucleic acids
- Correct Answer
- cellular bicarbonate
- 1. Most microbial structures and enzymes are composed of
Options- A. lipids
- B. proteins
- C. carbohydrates
- D. lipids and carbohydrates Discuss
- 2. Transmission of bubonic plague is by
Options- A. rat flea
- B. inhalation
- C. ingestion
- D. all of these Discuss
- 3. Which one is not studied in microbiology?
Options- A. Bacteria
- B. Animal behaviour
- C. Fungi
- D. Algae Discuss
- 4. Which is not a function of IgA?
Options- A. Protect mucosal surfaces
- B. Fix complement
- C. Protect eyes
- D. Agglutinate antigen Discuss
- 5. Cell wall protein of Streptococcus pyogenes crossreacts with human
Options- A. synovial fluid
- B. cardiac valves
- C. myocardium
- D. vascular intima Discuss
- 6. Transmission of pneumonic plague from man to man is through
Options- A. inoculation
- B. ingestion
- C. droplet infection
- D. all of these Discuss
- 7. All the following are considered eukaryotes except
Options- A. archaea
- B. fungi
- C. protozoa
- D. humans Discuss
- 8. 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
- 9. Which of the following organisms typically get their carbon for biosynthesis from carbon dioxide?
Options- A. Glucose-fermenting bacteria (fermentation)
- B. Anaerobic, glucose-respiring bacteria (anaerobic respiration)
- C. Aerobic, glucose-respiring bacteria (aerobic respiration)
- D. Ammonia-oxidizing bacteria (chemolithotrophic bacteria) Discuss
- 10. During DNA replication in prokaryotes, synthesis begins on the circular chromosome
Options- A. always at the same place
- B. at any stretch of DNA that is high in AT pairs
- C. randomly on the chromosome
- D. at the promoter Discuss
More questions
Correct Answer: proteins
Correct Answer: rat flea
Correct Answer: Animal behaviour
Correct Answer: Fix complement
Correct Answer: myocardium
Correct Answer: droplet infection
Correct Answer: archaea
Correct Answer: pathogenic properties
Correct Answer: Ammonia-oxidizing bacteria (chemolithotrophic bacteria)
Correct Answer: always at the same place
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