Biotechnology Engineering (M.Phil./Ph.D.) 2016 Panjab University Entrance Exam With Answers

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14.

N and N0 represent the number of viable cells at time ‘t’ during sterilization and at the start of sterilization (t=0), respectively. Assuming that cell death follows first order kinetics and that k is the death rate constant, which of the following relationship(s) is/are correct? kt

A: N = N0e
B: -ln (N/N0) = k t
C: N = N kt2
D: N – N = k t

The answer is: B

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