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Introduction
Food Micro Lab Final Exam
Question | Answer |
---|---|
How should lab benches be disinfected? | 10% hypochlorite followed by 70% ethanol |
T or F: Biohazards must be autoclaved prior to disposal. | True |
What is the countable colony range? | 25-250 |
What are the components of a lab report introduction? | Aim, background, previous work in the area, summary of what report will discuss, hypothesis. |
T or F: The materials and methods section in a lab report should use present-tense. | False |
What are the components of a lab report discussion? | Were your results as expected? How do results compare to previous work? What future experiments could be performed? |
What are the components of an abstract? | Motivation, hypothesis, question, method, major results, conclusion |
T or F: A biosafety cabinet is the same as a fume hood. | False |
Fume hood filter out hazardous chemicals, while biosafety cabinets filter out _____. | particulates |
Which directions does air flow in the biosafety cabinet? | Inward and downward |
T or F: Work should be done from "clean" to "dirty". | True |
T or F: Burned are allowed in the biosafety cabinet. | False |
Define standard deviation. | Describes the spread of values in a sample and how they differ from the mean. |
Define standard error. | Describes the accuracy as an estimate of the population mean. |