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Food Micro Lab Final Exam

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.
Created by: goberoi