microbiology biol 230 dr kaiser ccbc Micro Final (Exams 1,
2, 3)Questions With Complete Solutions
a clear area against a confluent "lawn" of bacteria
phage
pock
cell lysis
plaque Correct Answers d
A gene is best defined as
segment of DNA
3 nucleotides that code for amino acid
sequence of nucleotides in DNA that code for
functional product
sequence of nucleotides in RNA that codes for a
functional product Correct Answers c, DNA ->
functional product
a lab tech wants to encourage growth of specific
org, which select?
nutritional
reducing
selective
enrichment Correct Answers d
a pleomorphic organism
,has one shape
can have multiple shapes
is gP org
is gN org Correct Answers b, multiple shapes
a technician noticed that their anaerobic jar
indicator turned blue, this indicates
oxygen oxidized
oxygen reduced
nothing, normal
lid was tightly sealed Correct Answers a, oxygen
oxidized
a viroid is a
complete, infectioous virus particle
infectious piece of ran without a capsid
capsid without nucleic acid
provirus Correct Answers b
a, 1,4,5,6,7 Correct Answers
According to operon model, for synthesis of
inducible enzyme to occur
end product must not be in excess
substrate must bind enzyme
substrate must bind repressor
repressor must bind operator Correct Answers c
,acid fast cell walls contain
mycolic acids
techie acid
cellulose
chitin Correct Answers mycolic acids
acid fast oocysts in fecal sample from diarrhea
means
cryptosporidum
diatoms
entamoeba
giardia Correct Answers a
Activation energy best described
-frequency of collisions made in a molecule
-to get reactions started
-that chemical reactions react with other atoms
and molecules by colliding with each other
-an element Correct Answers b, get reactions
started
addition of what to culture medium will neutralize
acids
buffers
sugars
, pH
heat Correct Answers a, buffers
advantage of direct microscopic count Correct
Answers requires no incubation time
advantage of pentose phosphate pathway is that it
produces all of following except
-precursors for nucleic acids
precursors for synthesis of glucose
three ATPs
NADPH Correct Answers c, just one ATP
aerotolerant anaerobe refers to org that
does not use O2 but tolerates
killed by O2
uses O2 or goes without O2
requires less O2 than is present in ar Correct
Answers a
agent used to reduce number of bacteria on a
toilet
disinfectant
antiseptic
aseptic
fungicide Correct Answers a, disinfectant
2, 3)Questions With Complete Solutions
a clear area against a confluent "lawn" of bacteria
phage
pock
cell lysis
plaque Correct Answers d
A gene is best defined as
segment of DNA
3 nucleotides that code for amino acid
sequence of nucleotides in DNA that code for
functional product
sequence of nucleotides in RNA that codes for a
functional product Correct Answers c, DNA ->
functional product
a lab tech wants to encourage growth of specific
org, which select?
nutritional
reducing
selective
enrichment Correct Answers d
a pleomorphic organism
,has one shape
can have multiple shapes
is gP org
is gN org Correct Answers b, multiple shapes
a technician noticed that their anaerobic jar
indicator turned blue, this indicates
oxygen oxidized
oxygen reduced
nothing, normal
lid was tightly sealed Correct Answers a, oxygen
oxidized
a viroid is a
complete, infectioous virus particle
infectious piece of ran without a capsid
capsid without nucleic acid
provirus Correct Answers b
a, 1,4,5,6,7 Correct Answers
According to operon model, for synthesis of
inducible enzyme to occur
end product must not be in excess
substrate must bind enzyme
substrate must bind repressor
repressor must bind operator Correct Answers c
,acid fast cell walls contain
mycolic acids
techie acid
cellulose
chitin Correct Answers mycolic acids
acid fast oocysts in fecal sample from diarrhea
means
cryptosporidum
diatoms
entamoeba
giardia Correct Answers a
Activation energy best described
-frequency of collisions made in a molecule
-to get reactions started
-that chemical reactions react with other atoms
and molecules by colliding with each other
-an element Correct Answers b, get reactions
started
addition of what to culture medium will neutralize
acids
buffers
sugars
, pH
heat Correct Answers a, buffers
advantage of direct microscopic count Correct
Answers requires no incubation time
advantage of pentose phosphate pathway is that it
produces all of following except
-precursors for nucleic acids
precursors for synthesis of glucose
three ATPs
NADPH Correct Answers c, just one ATP
aerotolerant anaerobe refers to org that
does not use O2 but tolerates
killed by O2
uses O2 or goes without O2
requires less O2 than is present in ar Correct
Answers a
agent used to reduce number of bacteria on a
toilet
disinfectant
antiseptic
aseptic
fungicide Correct Answers a, disinfectant
