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Questions and Answers

Which of the following is true about culture media?

Culture media is a natural nutrient source for microorganisms.

Culture media is not used for growing and cultivating microorganisms.

Culture media is prepared artificially in the laboratory. (correct)

Culture media does not contain essential elements needed by microorganisms.

What are the basic elements needed by microorganisms in culture media?

C, H, O, N, P, S (correct)

C, H, O, N, P

C, H, O, N

C, H, O, N, S

What is the purpose of culture media in the laboratory?

To provide artificial nutrients for microorganisms (correct)

To cultivate microorganisms in their natural environments

To study microorganisms

To determine the effect of pH and sterilization on microorganisms

What are the expected learning outcomes of this exercise?

To describe and perform the major steps in culture media preparation Signup and view all the answers

Why do ingredients vary in different types of culture media?

To meet the specific nutrient requirements of different microorganisms Signup and view all the answers

Which of the following is NOT a basic element needed by microorganisms in culture media?

Calcium (Ca) Signup and view all the answers

What is the purpose of preparing culture media in the laboratory?

To provide nutrients for microorganisms to grow and survive Signup and view all the answers

Which of the following is a major step in culture media preparation?

Sterilizing the nutrient materials Signup and view all the answers

What is the effect of pH on the gelling power of the culture medium?

Lower pH increases the gelling power of the culture medium Signup and view all the answers

Why do ingredients vary from one type of culture media to another?