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10 Questions

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The Microbial Culture Challenge

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Questions and Answers

Which substance is commonly used as a medium for gelling microbial cultures?

Guar gum

Gelatin

Seaweed

Agarose gel (correct)

What is the purpose of isolating a pure culture of microorganisms?

To determine the type of organism

To determine the cause of infectious disease

To grow a specific kind of microorganism (correct)

To screen for harmful microorganisms

Which diagnostic method of microbiology involves letting the agent multiply in a predetermined medium?

Molecular biology

Bacterial culture

Throat culture

Microbial culture (correct)

Which technique is commonly used to isolate individual cells and produce a pure culture in microbiology?

Streak plate method Signup and view all the answers

What is the purpose of maintaining stock cultures in microbiology?

To preserve the biological, immunological, and cultural characters of microorganisms Signup and view all the answers

Which organisms are more easily isolated by picking out a single individual to initiate a culture?

Fungi Signup and view all the answers

Which method of bacterial culture is ideal for preparation of an antimicrobial assay in which the liquid broth is inoculated with bacteria and let to grow overnight?

Broth cultures Signup and view all the answers

What is the purpose of storing agar plates upside down in a refrigerator for an extended period of time?

To prevent contamination from airborne bacteria Signup and view all the answers

Which type of culture is most commonly used for short-term storage or shipment of cultures?

Stab cultures Signup and view all the answers

What is the purpose of the streak plate method in microbial culture?

To physically separate the microbial population Signup and view all the answers