Question

The exponential phase may be described by the equation _______

(a) dx/dt = µx

(b) dt/dx = µ

(c) dx/dt = µt

(d) dx^2/dt^2 = µ

The question was posed to me by my school principal while I was bunking the class.

This question is from Microbial Growth Kinetics topic in division Microbial Growth Kinetics of Fermentation Technology

Answer 1

The correct choice is (a) dx/dt = µx

Best explanation: The exponential phase is described by equation,

                                  dx/dt = µx

Where, x is concentration of microbial biomass, t is time in hours and µ is the specific growth rate, in hours^-1.