The solidifying agent used most successfully in bacterial nutrient media is
A) gelatin.
B) peptone.
C) agar.
D) starch.
E) agarose.

Question

Quizplus · Accepted Answer

Agar is the most commonly used solidifying agent in bacterial nutrient media due to its ability to remain solid at a wide range of temperatures, as well as its ability to be sterilized without breaking down. Gelatin and peptone both have lower melting points and can liquefy at higher temperatures, while starch and agarose do not solidify as well or as consistently as agar.

The Solidifying Agent Used Most Successfully in Bacterial Nutrient Media