Lecithinase Test | Theory & Results

Lecithinase Test | Theory & Results

Assessment

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Science, Biology, Chemistry

University

Hard

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The video tutorial explains the less athenase test, which detects bacteria expressing the enzyme less athenase. It covers the theory of lecithins and phospholipids, detailing how less athenase enzymes break down lecithins into diacylglycerol and head groups. The video also describes how to interpret test results, identifying positive results by the presence of a white, opaque precipitate. The practical application of the test using egg yolk agar is discussed, highlighting its role in identifying bacteria.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the presence of diacylglycerol affect the interpretation of the less athenase test?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the role of egg yolk in the less athenase test.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the white opaque precipitate observed in a positive less athenase test?

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