Which of the Following Organisms Has Clear Colonies on MacConkey

question 8

Multiple Choice

Which of the following organisms has clear colonies on MacConkey agar,oxidizes glucose and xylose,and has the ability to hydrolyze esculin?

• A)Alcaligenes xylosoxidans
• B)Paracoccus yeei
• C)Rhizobium radiobacter
• D)Shewanella putrefaciens

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Definitions:

Chemical Analyses

The process of examining materials by various techniques to determine their chemical composition.

Alteration Minerals

Minerals that form as a result of chemical changes in rocks, often due to hydrothermal fluid activity.

Iron Ore

A natural mineral or rock from which iron can be profitably extracted, typically rich in iron oxides.

Caldera

A large volcanic crater typically formed by a major eruption leading to the collapse of the mouth of the volcano.