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- Question
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
- Correct Answer
- ribulose 1,5 - bisphosphate
- 1. Incorporation of atmospheric N2to NH4+ occurs via the process of
Options- A. assimilatory nitrate reduction
- B. transamination
- C. deamination
- D. nitrogen fixation Discuss
- 2. The major route for incorporation of ammonia (NH4+) into organic compounds is via
Options- A. reduction of pyruvate or alpha-ketoglutarate by enzymes
- B. atmospheric nitrogen fixation
- C. oxidation of pyruvate
- D. all of these Discuss
- 3. Dolichol phosphate is
Options- A. a complex lipid involved in docking vesicles with the plasma membrane
- B. the anchor on which sugars assemble before transfer to proteins
- C. a chaperone used in protein folding
- D. a product of phospholipase C activation Discuss
- 4. 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
- 5. 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
- 6. Phosphate regulation has been observed in the production of
Options- A. alkaloids
- B. antibiotics
- C. gibberelins
- D. all of these Discuss
- 7. 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) Discuss
- 8. The mechanism of passive or facilitated diffusion require
Options- A. metabolic energy
- B. concentration of solute against an electrochemical gradient
- C. accumulation of solute against an electrochemical gradient
- D. accumulation or concentration of solute against an electrochemical gradient Discuss
- 9. If ?G of a chemical reaction has a negative value, the reaction
Options- A. releases energy
- B. requires energy
- C. both (a) and (b)
- D. none of these Discuss
- 10. Which of the following statement is correct?
Options- A. Phosphate repression can not be eliminated by optimization of nutrient medium, deregulated medium must be used as production strains
- B. Phosphate repression can be eliminated by optimization of nutrient medium, deregulated medium must be used as production strains
- C. Phosphate repression can be eliminated by optimization of nutrient medium, regulated medium must be used as production strains
- D. Phosphate repression can not be eliminated by optimization of nutrient medium, regulated medium must be used as production strains Discuss
Microbial Metabolism problems
Search Results
Correct Answer: nitrogen fixation
Correct Answer: reduction of pyruvate or alpha-ketoglutarate by enzymes
Correct Answer: the anchor on which sugars assemble before transfer to proteins
Correct Answer: 12
Correct Answer: enzymes
Correct Answer: all of these
Correct Answer: carries out each of the reactions indicated in (a) and (b)
Correct Answer: metabolic energy
Correct Answer: releases energy
Correct Answer: Phosphate repression can not be eliminated by optimization of nutrient medium, deregulated medium must be used as production strains
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