Question

Which type of medium is able to distinguish different species or types of microorganisms based on an observable change in the colonies or in the medium?

1) Selective medium
2) Differential medium
3) Enrichment medium
4) Indicator medium

Answer 1

Differential medium is able to distinguish different species or types of microorganisms based on observable changes in the colonies or the medium.

Step-by-step explanation:

The type of medium that is able to distinguish different species or types of microorganisms based on an observable change in the colonies or in the medium is differential medium.

Differential media contain additional compounds that allow us to differentiate between bacterial types based on differences in growth patterns or specific biochemical reactions. For example, MacConkey agar is a differential medium that contains a pH indicator that turns pink when lactose fermenting bacteria are present.

Therefore, the answer to your question is option 2) Differential medium.