Bacteriological Media Quiz

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Questions and Answers

Which of the following is NOT an ingredient of bacteriological media?

  • Peptone
  • Blood
  • Agar
  • Protein (correct)

What is the main polysaccharide found in agar?

  • Both Agarose and Agaropectin (correct)
  • Agarose
  • Agaropectin
  • Cellulose

At what concentration is agar typically used in microbiology?

  • 20-25 g/l
  • 5-10 g/l
  • 10-15 g/l
  • 15-20 g/l (correct)

What is the melting temperature of agar?

<p>90-100°C (B)</p> Signup and view all the answers

What is the primary purpose of agar in bacteriological media?

<p>To create a gel-like consistency (D)</p> Signup and view all the answers

Flashcards

Not an ingredient of bacteriological media?

Protein is a common nutrient source, not a structural component, in bacteriological media.

Main polysaccharide in agar?

Agar consists primarily of the polysaccharides agarose and agaropectin.

Agar concentration in microbiology?

Agar is typically used at a concentration of 15-20 g/l to achieve a semi-solid gel.

Melting temperature of agar?

Agar melts at 90-100°C, a high temperature that allows for sterilization without degradation.

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Primary purpose of agar?

Agar's primary role is to provide a solid or semi-solid matrix for bacterial growth.

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