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- Question
ATPase
Options- A. synthesizes ATP, coupled to transfer of extracellular protons into the cell
- B. extrudes protons from the cell coupled to the hydrolysis of ATP to ADP
- C. is the enzyme that incorporates ATP into messenger RNA
- D. carries out each of the reactions indicated in (a) and (b)
- Correct Answer
- carries out each of the reactions indicated in (a) and (b)
- 1. The unifying feature of the archaea that distinguishes them from the bacteria is
Options- A. habitats which are extreme environments with regard to acidity
- B. absence of a nuclear membrane temperature
- C. presence of a cell wall containing a characteristic outer membrane
- D. cytoplasmic ribosomes that are 70S Discuss
- 2. The isolation of the gonorrhoea - causing organisms, Neisseria gonorrhoeae,from a clinical specimen is facilitated by the use of media containing
Options- A. cellulose
- B. certain antibiotics
- C. succinate
- D. none of these Discuss
- 3. Medium acid foods with a pH between 5.3 and 4.5 are likely to undergo
Options- A. flat sour spoilage
- B. putrefaction
- C. both (a) and (b)
- D. TA spoilage Discuss
- 4. Which of the following is the spike antigen of HIV-I?
Options- A. gp 120
- B. gp 140
- C. gp 36
- D. gp 41 Discuss
- 5. Swelling of the can is caused primarily by
Options- A. gas forming, anaerobic spore formers
- B. gas forming, aerobic spore formers
- C. both (a) and (b)
- D. none of these Discuss
- 6. In viruses with envelopes
Options- A. the envelope and the embedded proteins are encoded by the viral nucleic acid
- B. the envelope is derived from the host but it contains embedded proteins coded by the viral nucleic acid
- C. the envelope is coded by the viral nucleic acids, but the proteins come from the host's membrane proteins
- D. the envelope and its imbedded proteins are derived from the host's membranes Discuss
- 7. The death of a river by environmental pollutants ultimately results from
Options- A. the overpopulation of algae
- B. the overabundance of toxic proteins
- C. the depletion of oxygen
- D. the buildup of sediment on the river bottom Discuss
- 8. What is the colour of gram-negative bacteria on a gram staining?
Options- A. Purple
- B. Pink
- C. Green
- D. Colourless Discuss
- 9. Microcapsules are composed of
Options- A. proteins
- B. polysaccharides
- C. lipids
- D. all of these Discuss
- 10. Commercially available ELISA kits are used for the detection of
Options- A. rotavirus
- B. hepatitis B surface antigen
- C. anti-HIV antibodies
- D. all of these Discuss
More questions
Correct Answer: absence of a nuclear membrane temperature
Correct Answer: certain antibiotics
Correct Answer: TA spoilage
Correct Answer: gp 120
Correct Answer: gas forming, anaerobic spore formers
Correct Answer: the envelope is derived from the host but it contains embedded proteins coded by the viral nucleic acid
Correct Answer: the depletion of oxygen
Correct Answer: Pink
Correct Answer: all of these
Correct Answer: all of these
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