You Need to Determine If a Pure Culture of Bacteria

question 29

Multiple Choice

You need to determine if a pure culture of bacteria is gram-positive or gram-negative, but you've just spilled your only solution of crystal violet so you can't do a Gram stain. You decide to try a lysozyme treatment on a sample of each culture and then examine the samples under the microscope. The expected result is _______.

• A) gram-negatives will lyse and appears as debris; gram-positives will be unaffected
• B) gram-positives will lyse and appears as debris; gram-negatives will lose cellular morphology and appear as cocci
• C) gram-positives will lyse and appears as debris; gram-negatives will lyse but more slowly
• D) gram-positives will lyse and appears as debris; gram-negatives will be unaffected
• E) gram-negatives will lyse and appears as debris; gram-positives will lose cellular morphology and appear as cocci

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Definitions:

Reducing Information

The process of condensing data or details to make it simpler and easier to understand or manage.

Intention

A determined plan or aim to accomplish a specific purpose or to bring about a particular action.

Recall

The act of accessing and bringing into conscious thought information stored in memory.

Adult Learning Process

The methods and strategies by which adults acquire new knowledge, skills, attitudes, or values, often differing from traditional pedagogical approaches.