Microbial Metabolism problems
- 1. The specific enzyme/(s) of the glyoxylate cycle is/are
Options- A. isocitrate lyase
- B. malate synthase
- C. both (a) and (b)
- D. anaplerotic Discuss
Correct Answer: both (a) and (b)
- 2. The reactions of the cell that are carried out for capturing energy are called
Options- A. catabolism
- B. metabolism
- C. anabolism
- D. activation energy Discuss
Correct Answer: catabolism
- 3. TCA cycle functions in
Options- A. catabolic reactions
- B. anabolic reactions
- C. amphibolic reactions
- D. none of these Discuss
Correct Answer: amphibolic reactions
- 4. If ?G of a chemical reaction is positive in value and keq is less than 1 then the chemical reaction will
Options- A. proceed in reverse direction
- B. proceeed in forward direction
- C. not take place in any of the direction
- D. none of these Discuss
Correct Answer: proceed in reverse direction
- 5. The bacteriochlorophylls used by the anoxygenic bacteria have absorbance maxima located in the_____portion(s) of the spectrum.
Options- A. green
- B. blue
- C. ultraviolet
- D. infrared Discuss
Correct Answer: infrared
- 6. DAHP synthetase catalyzes the condensation of
Options- A. erythrose-4-phosphate
- B. phosphoenol pyruvate
- C. both (a) and (b)
- D. phenylalanine Discuss
Correct Answer: both (a) and (b)
- 7. Bacteriochlorophyll differs from chlorophyll in what way?
Options- A. The chelated metal in bacteriochlorophyll is not Mg
- B. There are chemical differences between the two chlorophyll in their side (R) groups
- C. They have different absorption spectra
- D. Both (b) and (c) Discuss
Correct Answer: Both (b) and (c)
- 8. 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 Discuss
Correct Answer: cellular bicarbonate
- 9. During the reduction phase of the Calvin cycle, phosphoglyceric acid is reduced to______utilizing________as the reduction source.
Options- A. phosphoglyceraldehyde; NADPH+H+
- B. phosphoglyceraldehyde; NADH+H+
- C. ribulose 1,5 - bisphosphate; NADH+H+
- D. pyruvic acid; NADPH+H+ Discuss
Correct Answer: phosphoglyceraldehyde; NADPH+H+
- 10. The glyoxylate cycle is used by some microorganisms when___________ is the sole carbon source.
Options- A. acetate
- B. nitrate
- C. carbon dioxide
- D. all of these Discuss
Correct Answer: acetate
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