MBIO 3400 Lab Exam 1 Texas Tech
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20 Terms
A smear prep is used for
Staining procedures
At what temperature does water boil in the autoclave?
121 degrees celcius
Dry sterilization is used for what type of materials?
glassware
What color is Serratia Marcescens
Red
Fungal plates should be incubated.....
Lid side up
A student used a light microscope to observe Staphylococcus epidermidis. She used 40X objective lens. If the ocular magnification is 10X, what is the total magnification?
400
Which is NOT a criterion we considered when describing colonies?
a. Form
b. Elevation
c. Boundary
d. Margin
c. Boundary
What is the counter stain in a gram stain?
Safrinin
What is stained in a capsule stain?
Everything but the capsule
To what genus do acid-fast bacteria belong?
Mycobacterium
What will be the best technique for observing mobility of microorganisms in a water sample?
Wet mount
What shape do bacilli-shaped bacteria assume?
Rod shaped
Fungi belong to which taxonomical domain?
Eukaryota
The TSA medium which you used to pour your plates is what kind of media?
a. Chemically defined
b. Complex/rich
c. living media
d. all of the above
Complex/rich
What is the purpose of a streak plate?
To isolate individual colonies
A bacterial ______ is a cluster of identical organisms on an agar plate derived from a singular parental cell
colony
__________ is the method of completely destroying all viable cells and endospores
sterilization
A _______ dilution is the stepwise dilution of a substance in solution
serial
__________ is the solidifying agent used to make plates
Agar
A _________ preparation utilizes heat to fix cells to the slide
smear