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- Question
Which of the following shows a positive urease test?
Options- A. Proteus
- B. Klebsiella
- C. Both (a) and (b)
- D. None of these
- Correct Answer
- Both (a) and (b)
- 1. Quinolones are
Options- A. antimetabolites
- B. penicillin derivatives
- C. bacteriostatic
- D. broad-spectrum Discuss
- 2. The role of molecular chaperones is to
Options- A. facilitate binding of ribosomes to mRNA
- B. degrade newly synthesized polypeptides that contain inaccurate sequences
- C. facilitate binding of RNA polymerase to DNA
- D. aid a newly synthesized polypeptide in folding to its proper shape Discuss
- 3. During the carboxylation phase of the Calvin cycle, CO2 combines with
Options- A. ribulose 1,5 - bisphosphate
- B. phosphoglyceraldehyde
- C. pyruvic acid
- D. oxaloacetic acid Discuss
- 4. Black kraut is caused by
Options- A. the plant enzymes
- B. the micro-organisms
- C. the combined actions of plant enzymes and micro-organisms
- D. none of the above Discuss
- 5. Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of
Options- A. high osmotic pressure
- B. low osmotic pressure
- C. moderate osmotic pressure
- D. high surface tension Discuss
- 6. A major difference between EHEC and EPEC is
Options- A. EHEC secretes a Shiga-like toxin and EPEC does not
- B. EHEC possesses a type III secretion system and EPEC does not
- C. EPEC rearranges host cell actin and EHEC does not
- D. EPEC passes through the placenta to infect the fetus and EHEC does not Discuss
- 7. The most selective antibiotics are those that interfere with the synthesis of
Options- A. bacterial DNA
- B. bacterial RNA
- C. bacterial cell walls
- D. bacterial plasma membrane Discuss
- 8. A parenteral route of drug administration refers to
Options- A. oral
- B. nonoral
- C. intravenously
- D. intramuscularly Discuss
- 9. Peptidoglycan is found only in the bacterial
Options- A. cell membrane
- B. glycocalyx
- C. cell wall
- D. spore Discuss
- 10. The plasmid-mediated properties is/are
Options- A. fermentation of lactose
- B. production of enterotoxin
- C. resistance to antibiotics
- D. all of these Discuss
More questions
Correct Answer: broad-spectrum
Correct Answer: aid a newly synthesized polypeptide in folding to its proper shape
Correct Answer: ribulose 1,5 - bisphosphate
Correct Answer: the combined actions of plant enzymes and micro-organisms
Correct Answer: high osmotic pressure
Correct Answer: EHEC secretes a Shiga-like toxin and EPEC does not
Correct Answer: bacterial cell walls
Correct Answer: nonoral
Correct Answer: cell wall
Correct Answer: all of these
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