Discussion
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- Question
Antimicrobial constituents for the microbial growth in foods are
Options- A. intrinsic factor
- B. extrinsic factor
- C. both (a) and (b)
- D. none of these
- Correct Answer
- intrinsic factor
- 1. The straightforward method of binary fission explains how bacteria
Options- A. grow in nutrient agar
- B. evolve
- C. move
- D. reproduce Discuss
- 2. Which of the following is used to grow bacterial cultures continuously?
Options- A. Chemostat
- B. Coulter Counter
- C. Hemostat
- D. Petroff-Hausser chamber Discuss
- 3. The generation time of a culture that produces two generations per hour is
Options- A. greater than that produces three generations per hour
- B. lesser than that produces three generations per hour
- C. equal to that produces three generations per hour
- D. none of the above Discuss
- 4. During exponential growth, the growth rate is
Options- A. number of generations per unit time
- B. reciprocal of generation time
- C. both (a) and (b)
- D. none of these Discuss
- 5. Lag phase is also known as
Options- A. period of initial adjustment
- B. transitional period
- C. generation time
- D. none of these Discuss
- 6. Organisms, using organic compounds as electron donors are called
Options- A. lithotrophs
- B. phototrophs
- C. chemotrophs
- D. organotrophs Discuss
- 7. If the free energy change (?G) in a reaction is a negative value, it indicates that the
Options- A. reaction releases energy
- B. reaction absorbs energy
- C. reaction is in negative direction
- D. reaction is in positive direction Discuss
- 8. Oxidation is the
Options- A. loss of proton
- B. gain of electron
- C. loss of electron
- D. gain of protons Discuss
- 9. An enzyme that is always produced, regardless of the presence of substrates or the end products, is called
Options- A. a constitutive enzyme
- B. an isoenzyme
- C. a repressible enzyme
- D. an allosteric enzyme Discuss
- 10. The affinity of an enzyme for its substrate, when the enzyme has a Km of 0.50 M will be __________ than the affinity of an enzyme for its substrate when the enzyme has a Km of 0.05 M.
Options- A. greater
- B. lesser
- C. approximately equal
- D. half Discuss
Growth and Nutrition of Bacteria problems
Search Results
Correct Answer: reproduce
Correct Answer: Chemostat
Correct Answer: greater than that produces three generations per hour
Correct Answer: reciprocal of generation time
Correct Answer: period of initial adjustment
Correct Answer: organotrophs
Correct Answer: reaction releases energy
Correct Answer: loss of electron
Correct Answer: a constitutive enzyme
Correct Answer: lesser
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