You've Just Isolated a New Bacterium in Pure Culture, and You

question 56

Multiple Choice

You've just isolated a new bacterium in pure culture, and you culture it on a general purpose medium where its cells have a coccobacillus morphology.When you examine the cells after culturing on a variety of differential media, you find that in some cases, the cells appear as coccobacillus, but in others, they can be filamentous, cocci, or club-shaped.The best explanation for this observation is that

• A)the media were incubated at an incorrect temperature.
• B)the differential media are contaminated.
• C)the microscope is out of adjustment.
• D)the bacterium is pleomorphic.
• E)your culture has become contaminated.

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Definitions:

Cognitive Impairment

A decline in mental functions such as memory, attention, and decision-making, which may affect an individual's day-to-day activities.

Financially Exploited

Refers to being taken advantage of in a financial aspect, often through manipulation or deceit.

Cortical Thickness

A measure of the thickness of the cortex, the outer layer of the brain, which is related to cognitive functioning.

Insula

A region of the brain involved in consciousness, emotion, and the regulation of the body's homeostasis.