Growth and Nutrition of Bacteria problems
- 1. 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
Correct Answer: reciprocal of generation time
- 2. 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
Correct Answer: greater than that produces three generations per hour
- 3. Which of the following is used to grow bacterial cultures continuously?
Options- A. Chemostat
- B. Coulter Counter
- C. Hemostat
- D. Petroff-Hausser chamber Discuss
Correct Answer: Chemostat
- 4. The straightforward method of binary fission explains how bacteria
Options- A. grow in nutrient agar
- B. evolve
- C. move
- D. reproduce Discuss
Correct Answer: reproduce
- 5. 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 Discuss
Correct Answer: intrinsic factor
- 6. Organisms, using organic compounds as electron donors are called
Options- A. lithotrophs
- B. phototrophs
- C. chemotrophs
- D. organotrophs Discuss
Correct Answer: organotrophs
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