Question

Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium?

(a) Crowded plate technique

(b) Auxanographic technique

(c) Enrichment Culture technique

(d) Indicator dye technique

The question was asked by my school teacher while I was bunking the class.

Question is taken from Isolation and Screening of Industrially Important Microbes in section The Isolation, Preservation and Improvement of Industrial Microorganisms of Fermentation Technology

Answer 1

Correct answer is (c) Enrichment Culture technique

The best I can explain: The Enrichment culture technique is useful for the detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium. For e.g., cellulose producers grow on nutrient medium supplied with cellulose.