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.
thermoduric
B.
resistant
C.
mesophilic
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.
thermal death time.
B.
thermal death point.
C.
decimal reduction time.
D.
point of saturation.
Question #3
Disinfectants are chemical compounds that reduce and inhibit the growth of microorganisms on
A.
inanimate objects.
B.
skin and mucus membranes.
C.
eyes.
D.
hair.
Question #4
Which of the following is considered non-ionizing radiation?
A.
x-ray
B.
gamma
C.
UV
Question #5
Light with wavelengths between 250-260 nM affects __________ in cells.
A.
protein structure
B.
DNA purines
C.
DNA pyrimidines
D.
RNA
Question #6
Exoenzymes
A.
are synthesized outside the cells and transported inside.
B.
are only produced by eukaryotic cells.
C.
are synthesized inside the cell and transported outside.
D.
are biosynthetic enzymes that join organic molecules together.
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.
iodine
B.
phenol red
C.
spirit blue
D.
sodium hydroxide
Question #9
Gelatinase and caseinase are both examples of
A.
proteases.
B.
DNases.
C.
lipases.
D.
amylases.
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