Discussion
Home ‣ Microbiology ‣ Physical and Chemical Agents See What Others Are Saying!
- Question
Preservation of foods by using salts and sugars works by
Options- A. raising pH
- B. lowering osmotic pressure
- C. creating a hypertonic environment
- D. creating a hypotonic environment
- Correct Answer
- creating a hypertonic environment
- 1. Both penicillin and fluoroquinolones
Options- A. bind to and inactivate a bacterial protein
- B. inhibit the cross-linking of peptidoglycan
- C. are inactivated by ?-lactamase
- D. must be transported into the cytoplasm in order to act Discuss
- 2. With which of the following aminoglycosides interfere?
Options- A. Protein synthesis
- B. DNA function
- C. Cell wall synthesis
- D. Cell membrane function Discuss
- 3. Laminarin is an energy storage material characteristic of
Options- A. chlorophyta
- B. chrysophyta
- C. phaeophyta
- D. pyrrophyta Discuss
- 4. Which of the following virus is transmitted by the respiratory route?
Options- A. Rhinovirus
- B. Coronavirus
- C. Measles virus
- D. All of these Discuss
- 5. The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of
Options- A. cell growth
- B. cell autolysis
- C. cell permeation
- D. cell damage Discuss
- 6. In an oxygenic photosynthesis, the green and the purple bacteria do not use which of the following one as an electron source?
Options- A. H2O
- B. H2
- C. H2S
- D. S (elemental sulphur) Discuss
- 7. Carl Woese and his colleague are best known for establishing
Options- A. the five kingdom system
- B. the three domain system
- C. the prokaryote-eukaryote system
- D. the plant-animal system Discuss
- 8. Which of the following is not a member of the division Ascomycota?
Options- A. Aspergillus
- B. Claviceps
- C. Penicillium
- D. Rhizopus Discuss
- 9. Which of the following bacteria is/are known as coliform bacilli?
Options- A. Escherichia
- B. Klebsiella
- C. Enterobacter
- D. All of these Discuss
- 10. Which of the following property(ies) is/are seen in the members of family Enterobacteriaceae?
Options- A. They are catalase-positive
- B. They are oxidase-negative
- C. They ferment glucose
- D. They reduce nitrates to nitrites Discuss
More questions
Correct Answer: bind to and inactivate a bacterial protein
Correct Answer: Protein synthesis
Correct Answer: phaeophyta
Correct Answer: All of these
Correct Answer: cell autolysis
Correct Answer: H2O
Correct Answer: the three domain system
Correct Answer: Rhizopus
Correct Answer: All of these
Correct Answer: They are oxidase-negative
Comments
There are no comments.More in Microbiology:
Programming
Copyright ©CuriousTab. All rights reserved.