Straighterline Microbiology Final BIO250 Microbiology
Final Questions With Complete Solutions
"Gold Standard" Taxonomic Methods Correct Answers -
DNA-DNA hybridization (DDH)
- Melting temperature of the DNA (a reflection of the G + C
content)
- Average nucleotide identity
1% Correct Answers Less than ____% off all microbial
species have been cultured, identified, and studied.
10-400 nm Correct Answers Virion size range
450X Correct Answers A 45x objective and a 10x ocular
produce a total magnification of _________.
99.9% inactivation of microbes prosent Correct Answers
Target threshold to meet EPA maximum containment level
goals.
A sulfate reducing chemoautotroph Correct Answers An
organism found in the deep hot biosphere that used hydrogen as
an electron donor and sulfate as a terminal electron acceptor
would be categorized as ______________.
Active Site Correct Answers The substrate of an enzyme binds
at the __________.
Amphipathic Correct Answers Lipids with polar and nonpolar
ends
,Anagenesis Correct Answers Small, random genetic changes
that occur over generations
Antitoxin and antibiotics Correct Answers Treatment for
diphtheria
Aspergillus Correct Answers A major fungal genus that
produces aflatoxin.
Aspergillus niger Correct Answers The major organism used
in the microbial production of citric acid is
____________________.
Aspergillus oryzae Correct Answers The fungus used in the
production of saki and soy sauce.
Attenuation Correct Answers What is used to control
transcription of some anabolic pathways involved in amino acid
biosynthesis?
Autophagosome Correct Answers A special type of lysosome
used by a cell to selectively digest and recycle cytoplasmic
contents, such as mitochondria.
Bacterial Cells Correct Answers Commonality between
experiments done by Avery and colleagues as well as Hershey
and Chase
Bacterial plasmids...... Correct Answers - Can replicate
independently of the chromosome
, - May carry genes for drug resistance
- May carry genes that enhance survival of the bacterium under
certain conditions
Bacterial Promotor Correct Answers The nontranscribed
region of the DNA to which RNA polymerase binds in order to
initiate transcription.
Beta-Oxidation Pathway Correct Answers Metabolizes fatty
acids
Burkholderia Correct Answers The toxin that allows Rhizopus
to cause the rise disease known as seedling blight is actually
produced by ____________ growing within the fungus.
Calvin-Benson Cycle Correct Answers The pathway used by
eukaryotic microorganisms to fix carbon dioxide
Cardinal growth temperatures Correct Answers Minimum,
maximum and optimum
Characteristics of Active Transport Correct Answers -
Saturable uptake rate
- Use of ATP or a proton gradient as a source of metabolic
energy
- Can move materials against a concentration gradient
Cobalt (Co) Correct Answers Not considered a macronutrient
Contractile vacuole Correct Answers A unique organelle
found within some protists but not in higher animal cells
Final Questions With Complete Solutions
"Gold Standard" Taxonomic Methods Correct Answers -
DNA-DNA hybridization (DDH)
- Melting temperature of the DNA (a reflection of the G + C
content)
- Average nucleotide identity
1% Correct Answers Less than ____% off all microbial
species have been cultured, identified, and studied.
10-400 nm Correct Answers Virion size range
450X Correct Answers A 45x objective and a 10x ocular
produce a total magnification of _________.
99.9% inactivation of microbes prosent Correct Answers
Target threshold to meet EPA maximum containment level
goals.
A sulfate reducing chemoautotroph Correct Answers An
organism found in the deep hot biosphere that used hydrogen as
an electron donor and sulfate as a terminal electron acceptor
would be categorized as ______________.
Active Site Correct Answers The substrate of an enzyme binds
at the __________.
Amphipathic Correct Answers Lipids with polar and nonpolar
ends
,Anagenesis Correct Answers Small, random genetic changes
that occur over generations
Antitoxin and antibiotics Correct Answers Treatment for
diphtheria
Aspergillus Correct Answers A major fungal genus that
produces aflatoxin.
Aspergillus niger Correct Answers The major organism used
in the microbial production of citric acid is
____________________.
Aspergillus oryzae Correct Answers The fungus used in the
production of saki and soy sauce.
Attenuation Correct Answers What is used to control
transcription of some anabolic pathways involved in amino acid
biosynthesis?
Autophagosome Correct Answers A special type of lysosome
used by a cell to selectively digest and recycle cytoplasmic
contents, such as mitochondria.
Bacterial Cells Correct Answers Commonality between
experiments done by Avery and colleagues as well as Hershey
and Chase
Bacterial plasmids...... Correct Answers - Can replicate
independently of the chromosome
, - May carry genes for drug resistance
- May carry genes that enhance survival of the bacterium under
certain conditions
Bacterial Promotor Correct Answers The nontranscribed
region of the DNA to which RNA polymerase binds in order to
initiate transcription.
Beta-Oxidation Pathway Correct Answers Metabolizes fatty
acids
Burkholderia Correct Answers The toxin that allows Rhizopus
to cause the rise disease known as seedling blight is actually
produced by ____________ growing within the fungus.
Calvin-Benson Cycle Correct Answers The pathway used by
eukaryotic microorganisms to fix carbon dioxide
Cardinal growth temperatures Correct Answers Minimum,
maximum and optimum
Characteristics of Active Transport Correct Answers -
Saturable uptake rate
- Use of ATP or a proton gradient as a source of metabolic
energy
- Can move materials against a concentration gradient
Cobalt (Co) Correct Answers Not considered a macronutrient
Contractile vacuole Correct Answers A unique organelle
found within some protists but not in higher animal cells
