Question

multiple choice question
which of the following polysaccharides is used commonly in the microbiology lab to prepare solid culture media?
o cellulose
o peptidoglycan
o agar
o chitin

Explanation:

Agar is a polysaccharide that is widely used in microbiology labs to solidify culture media. It remains solid at the temperatures used for culturing most microorganisms and is not readily metabolized by many microbes. Cellulose is a structural polysaccharide in plants, peptidoglycan is in bacterial cell - walls, and chitin is in the exoskeletons of arthropods and cell - walls of some fungi.

Answer:

C. Agar