Microbiology Quiz 4 (BIO 210)

Week 4, Quiz 4

Match the appropriate ==culture media== with these patient samples.

==HEKTOEN ENTERIC AGAR:== Sick patient with vomiting and diarrhea; stool sample taken

==MANNITOL SALT (MS) AGAR:== High school wrestler comes in with infected skin boils that look like Staphylococcus aureus; skin swab taken

==SABOURAUD’S AGAR:== Infant with a possible thrush (yeast) infection; mouth swab taken \n

What can you conclude from this streak plate?

It was made from a pure culture of one type of bacteria

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In the case of the sick inmates, what behaviors or practices could have prevented the outbreak?

thorough heating of leftover food used in meal preparation

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If a red blood cell is represented by the size of a cell phone (about 14-15 cm in length), which of these objects would be a good representation of the size of an average bacterial cell?

headphone earbud (1.5 cm)

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Which of the following can be used to describe/evaluate ==colony characteristics==?

Color

margin (edge)

size

texture

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What is the best explanation for why this streak plate does not have any isolated colonies

The student forgot to flame the inoculating tool in between sections

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