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- Question
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
- Correct Answer
- acetate
- 1. 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
- 2. 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
- 3. 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
- 4. DAHP synthetase catalyzes the condensation of
Options- A. erythrose-4-phosphate
- B. phosphoenol pyruvate
- C. both (a) and (b)
- D. phenylalanine Discuss
- 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
- 6. Which of the following nucleoside diphosphates is used most often in carbohydrate anabolism?
Options- A. Uridine diphosphate
- B. Adenosine diphosphate
- C. Guanine diphosphate
- D. Thymine diphosphate Discuss
- 7. Assimilatory sulfate reduction involves the nucleotide __________ during the incorporation of H2S in the production of __________ .
Options- A. ATP; methionine
- B. ATP; cytosine
- C. UTP; cytosine
- D. GTP; cytosine Discuss
- 8. Most of the energy in aerobic respiration of glucose is captured by
Options- A. substrate-level phosphorylation
- B. electron transport of electrons from NADH
- C. long-chain fatty acid oxidation
- D. the enzyme formic-hydrogen lyase Discuss
- 9. Radioisotopes are frequently used in the study of cells. Assume a culture of E. coli is grown in a culture medium containing radioactive sulphur. At the end of 48 hours, it is expected to find the radioactive label located in
Options- A. DNA
- B. enzymes
- C. RNA
- D. all of these Discuss
- 10. For each glucose molecule broken down, there are______________number of reduced coenzymes to be oxidized.
Options- A. 12
- B. 8
- C. 6
- D. 4 Discuss
Microbial Metabolism problems
Search Results
Correct Answer: phosphoglyceraldehyde; NADPH+H+
Correct Answer: cellular bicarbonate
Correct Answer: Both (b) and (c)
Correct Answer: both (a) and (b)
Correct Answer: infrared
Correct Answer: Uridine diphosphate
Correct Answer: ATP; cytosine
Correct Answer: electron transport of electrons from NADH
Correct Answer: enzymes
Correct Answer: 12
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