Title: Experiment 5 Quiz
Course: Lab Applications of Microbiology > Section: Course Content

1. Description: Quiz over the Experiment 5 Objectives
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3. Multiple Attempts: This test allows two attempts. The highest grade will be recorded.

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1. Description: Quiz over the Experiment 5 Objectives
2. Force Completion: This test can be saved and resumed later
3. Multiple Attempts: This test allows two attempts. The highest grade will be recorded.

Click Begin to start: Quiz 5. Click Cancel to go back.

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Q: Why do we perform viable cell plate counts?
- Because they can tell us how much bacteria is in a sample, and whether or not that bacteria is coliform.
- Because they can tell us how much salt is in our food sample.
- Because they can tell us whether or not our idea is 'viable'.
- None of the above.
A: Because they can tell us how much bacteria is in a sample, and whether or not that bacteria is coliform.

Q: Why do we want to calculate the number of colony forming units (CFU) in a sample?
- It tells us how many bacteria are in the sample.
- It helps us determine whether the sample is safe to eat, drink, or use.
- It could be required, for example, as part of a government regulation, to be performed prior to sale - for example, as it is for raw milk.
- All of the above.
A: All of the above.

Q: If a plate appears to have more than 250 colonies, the colony count should be recorded as  Too Many To Count (TMTC).
- True
- False
A: True

Q: A normal, countable, plate would have between 25-250 colonies.
- True
- False
A: True

Q: MacConkey Agar can be used to distinguish coliform and non-coliform bacteria. On this media, the coliform bacteria would appear to have the color red.
- True
- False
A: True