Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?

 Q. Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?

(a) Bioreactor 

(b) BOD incubator 

(c)  Sludge digester 

(d) Industrial oven 

Answer (a) Bioreactor