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The average size of cells during exponential phase of growth is _________

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The average size of cells during exponential phase of growth is _________

(a) Greater than the lag phase

(b) Lesser than the lag phase

(c) Equal to lag phase

(d) Constant

I had been asked this question in class test.

This is a very interesting question from Cell Growth Kinetics topic in portion Homogenous Reactions of Bioprocess Engineering

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The correct answer is (b) Lesser than the lag phase

To explain I would say: During this phase bacteria divides continuously at constant rate and the number of bacteria increase exponentially. In this phase all bacteria are in their rapid stage of cell division and show balanced growth. Due to rapid cell division, bacteria have smallest size in this phase.

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