Bio 2010 - Microbiology » Summer 2022 » Lab Quiz 3
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Bio 2010 - Microbiology ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Organisms that can withstand high temperatures are said to be
A.
mesophilic
B.
resistant
C.
thermoduric
D.
psychrophilic
Question #2
The temperature it takes to kill an entire population of microbes after incubation for 10 minutes at a pH of 7 is called the
A.
decimal reduction time.
B.
point of saturation.
C.
thermal death point.
D.
thermal death time.
Question #3
Disinfectants are chemical compounds that reduce and inhibit the growth of microorganisms on
A.
hair.
B.
eyes.
C.
skin and mucus membranes.
D.
inanimate objects.
Question #4
Which of the following is considered non-ionizing radiation?
A.
gamma
B.
UV
C.
x-ray
Question #5
Light with wavelengths between 250-260 nM affects __________ in cells.
A.
DNA purines
B.
protein structure
C.
RNA
D.
DNA pyrimidines
Question #6
Exoenzymes
A.
are synthesized outside the cells and transported inside.
B.
are biosynthetic enzymes that join organic molecules together.
C.
are synthesized inside the cell and transported outside.
D.
are only produced by eukaryotic cells.
Question #7
We use this agar to determine if an organism produces the exoenzyme caseinase.
A.
skim milk
B.
spirit blue
C.
nutrient gelatin
D.
starch
Question #8
This indicator solution is used to show the presence of starch.
A.
spirit blue
B.
phenol red
C.
iodine
D.
sodium hydroxide
Question #9
Gelatinase and caseinase are both examples of
A.
amylases.
B.
proteases.
C.
DNases.
D.
lipases.
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Bio 2010 - Microbiology ] course for $25 USD.
Existing Quiz Clients Login here