Microbial Metabolism problems
- 1. 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
Correct Answer: carries out each of the reactions indicated in (a) and (b)
- 2. 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
Correct Answer: metabolic energy
- 3. 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
Correct Answer: releases energy
- 4. 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
Correct Answer: Phosphate repression can not be eliminated by optimization of nutrient medium, deregulated medium must be used as production strains
- 5. Which of the following is responsible for phosphate solubilization?
Options- A. Streptococcus
- B. Streptomyces
- C. Bacillus
- D. Clostridium Discuss
Correct Answer: Bacillus
- 6. As the electron flow through the chains, much of their free energy is conserved in the form of ATP. This process is called
Options- A. oxidative phosphorylation
- B. electromotive potential
- C. dehydrogenations
- D. none of these Discuss
Correct Answer: oxidative phosphorylation
- 7. Free energy change (?G) of a reaction is referred as the amount of energy
Options- A. liberated during reaction
- B. taken up during reaction
- C. liberated or taken up during reaction
- D. none of these Discuss
Correct Answer: liberated or taken up during reaction
- 8. Phosphate is considered to restrict the induction of
Options- A. primary metabolites
- B. secondary metabolites
- C. both (a) and (b)
- D. none of these Discuss
Correct Answer: secondary metabolites
- 9. Which of the following groups contain(s) many unique coenzymes, such as coenzyme M and coenzyme F420?
Options- A. Sulfate-reducing bacteria
- B. Methanotrophs (methane-oxidizing microbes)
- C. Methanogens (methane-producing microbes)
- D. Acetogens (acetigens; acetate-producing microbes) Discuss
Correct Answer: Methanogens (methane-producing microbes)
- 10. Digestive reactions where large molecules are broken down into smaller ones are referred as
Options- A. anabolism
- B. catabolism
- C. metabolism
- D. biosynthesis Discuss
Correct Answer: catabolism
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