Question

A completely mixed continuous stirred-tank reactor for the cultivation of cells is called?

(a) Turbidostat

(b) Chemostat

(c) Haemostat

(d) Thermostat

This question was addressed to me in homework.

I want to ask this question from Kinetics of Cell Substrate Uptake in Cell Culture topic in section Homogenous Reactions of Bioprocess Engineering

Answer 1

The correct answer is:

(b) Chemostat

Explanation:

A Chemostat is a type of continuous stirred-tank reactor (CSTR) commonly used in microbiology and cell culture. It is a bioreactor where the culture medium is continuously supplied, and the culture is continuously removed at the same rate to maintain a constant volume. The supply of nutrients is controlled (usually limiting one specific nutrient) to maintain a steady state in the growth of cells or microorganisms. In this system, the growth rate of cells is regulated by the concentration of the limiting nutrient, and it allows for a stable environment where the microbial or cell population can grow in a continuous process.