Agar Replaced Gelatin as the Gelling (Solidifying) Agent for Media

question 50

Multiple Choice

Agar replaced gelatin as the gelling (solidifying) agent for media because

• A) agar provides nutrients for rapid bacterial growth.
• B) fewer bacteria can break down agar compared with gelatin.
• C) agar is solid at temperatures as high as 90°C.
• D) agar provides a pH range from 4-11.
• E) agar is much easier to obtain than gelatin.

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Definitions:

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