Question

. What is a typical pattern of growth of a bacterial population? An exponential phase followed...

. What is a typical pattern of growth of a bacterial population?

  1. An exponential phase followed by a stasis phase.
  2. A lag phase, followed by the log phase, followed by a stationary phase.
  3. An exponential phase followed by a slow-growth phase.
  4. An exponential phase, followed by a decline phase.
  5. A lag phase, followed by a stationary phase, followed by the log phase\
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Answer #1

The correct answer is - B-

Explanation- The bacterial growth kinetics shows 4 stages- the lag phase(when the bacteria divides very less and also are less in number), followed by log phase(where the bacteria has all become very activeStationary phase Log phase Death phase Log (number of bacteria) Lag phase Time — and starts dividing by binary fission vigorously), followed by stationary phase(when the bacteria divide, but they also die-such that the death rate and division rate are same) and finally death phase(the bacterial population decreases--due to the accumulation of toxic products in the medium).

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