MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
phylogeny - ANSWER--The study of evolutionary relationships
among organisms is called ______.
Last Universal Common Ancestor - ANSWER--The three cell
types discussed, eukaryotes, archaea, and bacteria, all derived
from ______.
always harmful to their host - ANSWER--Organisms called
parasites are ______.
Thermal hot springs warmed by heat from earth's interior -
ANSWER--Which of the following does not indicate microbe
involvement in energy and nutrient flow?
Electrons - ANSWER--The subatomic particles that surround the
nucleus are the ______.
respiratory disease - ANSWER--The number one worldwide
infectious diseases are ______.
saturated - ANSWER--A fat is called _____ if all carbons of the
fatty acid chain are single-bonded to 2 other carbons and 2
hydrogens.
lipid - ANSWER--One technique for staining bacteria for viewing
under the microscope is called the Gram stain. In this technique,
alcohol is used as a decolorizer because it degrades the outer
membrane found in some bacteria. What chemical component of
the cell does alcohol affect?
, MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
95X - ANSWER--If a microbiologist is studying a specimen at a
total magnification of 950X, what is the magnifying power of the
objective lens if the ocular lens is 10X?
cell size of 0.5 to 2 microns - ANSWER--NASA has published a
list of criteria for identifying fossil bacteria in samples from Mars,
as part of a search for evidence of life. Which of the following is
good evidence for the presence of bacterial cells?
electron - ANSWER--Which type of microscope achieves the
greatest resolution and highest magnification?
a solid medium - ANSWER--Which of the following is produced by
adding 1% to 5% agar to nutrient broth that is then boiled and
cooled?
Creutzfeldt-Jacob disease - ANSWER--a spongiform
encephalopathy of humans
amphitrichous - ANSWER--The term that refers to flagella at both
poles of the cell is ______.
saprobe - ANSWER--In the condition called athlete's foot, the
fungus Trichophyton consumes the keratin protein found in hair,
nails, and dead skin. Which of the following descriptors does not
apply to Trichophyton?
gram-negative - ANSWER--During the Gram stain, the application
of alcohol results in the decolorization of ______ cells.
80s - ANSWER--The size of a eukaryotic ribosome is ______
, MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
Bacterial cells are typically between 1-10 μm and are blocked by
the filter, whereas most viruses are between 20 and 200 nm and
therefore pass through. - ANSWER--Sterilizing filters have a pore
size of 0.22 μm. Which of the following statements is true?
icosahedral - ANSWER--One of the principal viral capsid shapes
is a 20-sided figure with 12 evenly spaced corners referred to as
a/an _____ capsid.
fecal oral - ANSWER--Amoebic dysentery is most commonly
contracted through
lysogeny - ANSWER--the viral genome inserting into bacterial
host chromosome
envelope - ANSWER--Which of the following is not associated
with every virus?
palisade - ANSWER--When bacilli in a chain fold back upon each
other like a hinge, this cellular arrangement is termed a ______.
histones - ANSWER--proteins associated with DNA in the
nucleus.
tropisms - ANSWER--Viral tissue specificities are called ______.
lophotrichous - ANSWER--the term that refers to the presence of
a tuft of flagella emerging from a single site is ______.
mutualistic - ANSWER--E. coli bacteria normally live in the human
gut and produce vitamin K that the body uses. This is best termed
a ______ relationship.
, MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
mutualistic - ANSWER--Termites are insects that require the
protozoan Trichonympha in their gut to synthesize the enzyme
cellulase to degrade the cellulose in wood. The protozoan uses
the end products of the cellulose breakdown (glucose). This is
a(n) ______ relationship.
lag phase - ANSWER--The phase of the bacterial growth curve in
which newly inoculated cells are adjusting to their new
environment, metabolizing but not growing at an exponential rate,
is the ______.
hypotonic - ANSWER--The cell wall will help prevent the cell from
bursting in ______ conditions.
photoheterotroph - ANSWER--This microbe is photosynthetic, but
in the absence of light it can use organic compounds as an
energy source. Its carbon source is an organic compound. The
appropriate classification for this organism would be ______.
thermoduric microbe - ANSWER--A microorganism that has an
optimum growth temperature of 37°C, but can survive short
exposure to high temperatures is called a(n) ______.
Noncompetitive inhibition - ANSWER--the end product binding to
enzyme in noncompetitive site
catalysts for RNA splicing - ANSWER--Ribozymes are ______.
coenzymes - ANSWER--Most electron carriers are ______.
2 - ANSWER--what is the usual net production of ATP?
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
phylogeny - ANSWER--The study of evolutionary relationships
among organisms is called ______.
Last Universal Common Ancestor - ANSWER--The three cell
types discussed, eukaryotes, archaea, and bacteria, all derived
from ______.
always harmful to their host - ANSWER--Organisms called
parasites are ______.
Thermal hot springs warmed by heat from earth's interior -
ANSWER--Which of the following does not indicate microbe
involvement in energy and nutrient flow?
Electrons - ANSWER--The subatomic particles that surround the
nucleus are the ______.
respiratory disease - ANSWER--The number one worldwide
infectious diseases are ______.
saturated - ANSWER--A fat is called _____ if all carbons of the
fatty acid chain are single-bonded to 2 other carbons and 2
hydrogens.
lipid - ANSWER--One technique for staining bacteria for viewing
under the microscope is called the Gram stain. In this technique,
alcohol is used as a decolorizer because it degrades the outer
membrane found in some bacteria. What chemical component of
the cell does alcohol affect?
, MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
95X - ANSWER--If a microbiologist is studying a specimen at a
total magnification of 950X, what is the magnifying power of the
objective lens if the ocular lens is 10X?
cell size of 0.5 to 2 microns - ANSWER--NASA has published a
list of criteria for identifying fossil bacteria in samples from Mars,
as part of a search for evidence of life. Which of the following is
good evidence for the presence of bacterial cells?
electron - ANSWER--Which type of microscope achieves the
greatest resolution and highest magnification?
a solid medium - ANSWER--Which of the following is produced by
adding 1% to 5% agar to nutrient broth that is then boiled and
cooled?
Creutzfeldt-Jacob disease - ANSWER--a spongiform
encephalopathy of humans
amphitrichous - ANSWER--The term that refers to flagella at both
poles of the cell is ______.
saprobe - ANSWER--In the condition called athlete's foot, the
fungus Trichophyton consumes the keratin protein found in hair,
nails, and dead skin. Which of the following descriptors does not
apply to Trichophyton?
gram-negative - ANSWER--During the Gram stain, the application
of alcohol results in the decolorization of ______ cells.
80s - ANSWER--The size of a eukaryotic ribosome is ______
, MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
Bacterial cells are typically between 1-10 μm and are blocked by
the filter, whereas most viruses are between 20 and 200 nm and
therefore pass through. - ANSWER--Sterilizing filters have a pore
size of 0.22 μm. Which of the following statements is true?
icosahedral - ANSWER--One of the principal viral capsid shapes
is a 20-sided figure with 12 evenly spaced corners referred to as
a/an _____ capsid.
fecal oral - ANSWER--Amoebic dysentery is most commonly
contracted through
lysogeny - ANSWER--the viral genome inserting into bacterial
host chromosome
envelope - ANSWER--Which of the following is not associated
with every virus?
palisade - ANSWER--When bacilli in a chain fold back upon each
other like a hinge, this cellular arrangement is termed a ______.
histones - ANSWER--proteins associated with DNA in the
nucleus.
tropisms - ANSWER--Viral tissue specificities are called ______.
lophotrichous - ANSWER--the term that refers to the presence of
a tuft of flagella emerging from a single site is ______.
mutualistic - ANSWER--E. coli bacteria normally live in the human
gut and produce vitamin K that the body uses. This is best termed
a ______ relationship.
, MICROBIOLOGY STRAIGHTERLINE FINAL EXAM 300+
QUESTIONS WITH 100% CORRECT ANSWERS 2023-2024
COMPLETE SOLUTION/A+ GRADE
mutualistic - ANSWER--Termites are insects that require the
protozoan Trichonympha in their gut to synthesize the enzyme
cellulase to degrade the cellulose in wood. The protozoan uses
the end products of the cellulose breakdown (glucose). This is
a(n) ______ relationship.
lag phase - ANSWER--The phase of the bacterial growth curve in
which newly inoculated cells are adjusting to their new
environment, metabolizing but not growing at an exponential rate,
is the ______.
hypotonic - ANSWER--The cell wall will help prevent the cell from
bursting in ______ conditions.
photoheterotroph - ANSWER--This microbe is photosynthetic, but
in the absence of light it can use organic compounds as an
energy source. Its carbon source is an organic compound. The
appropriate classification for this organism would be ______.
thermoduric microbe - ANSWER--A microorganism that has an
optimum growth temperature of 37°C, but can survive short
exposure to high temperatures is called a(n) ______.
Noncompetitive inhibition - ANSWER--the end product binding to
enzyme in noncompetitive site
catalysts for RNA splicing - ANSWER--Ribozymes are ______.
coenzymes - ANSWER--Most electron carriers are ______.
2 - ANSWER--what is the usual net production of ATP?
