Question

Blood agar is an example of which type of media?

(a) Selective

(b) Differential

(c) Enriched

(d) Enrichment

This question was posed to me in an interview for internship.

My enquiry is from Medium Optimization in portion Introduction to Fermentation Processes & Media for Industrial Fermentation of Bioprocess Engineering

Answer 1

The correct answer is:

(c) Enriched

Explanation:

Blood agar is a type of enriched medium, which provides extra nutrients that support the growth of a wide range of microorganisms, including those that might not grow well on standard media. Blood agar contains red blood cells, typically from sheep, which provide nutrients like heme and other growth factors that are necessary for the growth of fastidious organisms (those with specific nutritional requirements).

• Enriched media like blood agar support the growth of a wide variety of organisms, including those with special growth requirements.