Enrichment medium – Microbiology MCQ

Which of the following is an enrichment medium?
A. Alkaline peptone water
B. Loeffler serum slope
C. Deoxycholate citrate agar
D. MacConkey’s agar

Correct answer : A. Alkaline peptone water

Enrichment medium is a liquid medium which selectively favours the growth of certain pathogenic bacteria and inhibits commensal bacteria.
Loeffler’s serum slope is an enriched medium.
Deoxycholate citrate agar is a selective medium.
MacConkey’s agar is a differential medium.

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