final exam straighterline microbiology With complete
solu on REVISED EDITION NEW!! 2025/2026 RATED A+
In the nitrogen cycle, which of the following steps involves removal of nitrogen from the
atmosphere by bacteria? - Ans Nitrogen Fixa on
If enough H+ ions are added to pure water to raise the H+ concentra on of the solu on to ten
mes higher than the original concentra on, what is the resul ng OH- concentra on of the
solu on? - Ans 10-8 M
Fungi are able to reproduce asexually by crea ng conidiospores and sporangiospores. Which of
the following is an accurate explana on for why it is advantageous that they are also capable of
sexual reproduc on? - Ans Offspring from two parents may have varia ons in form and func on
that contribute to survival of the species.
In a laboratory bacterial cell culture that has been infected by a virus, plaques are areas in
which... - Ans the virus has spread and le+ behind the remains of dead cells.
The sun's energy is delivered as discrete packets that travel as waves and are called - Ans
Photons
What is a characteris c of aerobic respira on? - Ans The process includes glycolysis, the Krebs
cycle, and the electron transport chain.
In comple ng protein synthesis in a prokaryote, what basic message is carried by a specialized
codon that has no corresponding tRNA? - Ans "Terminate here."
,Microbial drug resistance can be caused by muta ons or by introduc on of new genes into a
popula on. Which of the following can only be caused by the introduc on of new genes into a
popula on? - Ans new enzymes that inac vate the drug are synthesized
Why do the hands, feet, and breasts have more lympha c vessels for host defense than other
areas of the human body? - Ans They have a high risk for infec on due to frequent contact.
Penicillin func ons as an an microbial agent by inhibi ng bacterial... - Ans cell wall synthesis.
Which class of eukaryo c microorganisms can be subdivided into groups such as Mas gophora,
Sarcodina, Ciliophora, and Apicomplexa? - Ans Protozoa
Gene c material can be excised from one chromosome and directly integrated into another
via... - Ans transposons
What immune cell secretes numerous cytokines that help to coordinate the response of other
immune cells? - Ans TH cell
What enzymes are used to amplify DNA during PCR? - Ans DNA polymerase
Which of the following is a scien fic name? - Ans Streptococcus pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological medium for growing
gram-nega ve bacteria from complex environments. It contains two dyes, eosin and methylene
blue, as well as the sugar lactose. Eosin is a pH indicator that changes color when the medium is
acidic, while methylene blue inhibits the growth of most gram-posi ve bacteria. If an organism
consumes lactose, acid will be produced, causing the bacterial colonies to change color.
Based upon this descrip on, this medium is ______ - Ans differen al and selec ve
, A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last
Universal Common Ancestor would show Archaea - Ans branching off the Domain Eukarya.
In the cell cytoplasm, molecules of ATP are a - Ans solute
The _____ of the microscope holds and allows selec on of the objec ve lenses. - Ans
nosepiece
Characteris cs shared by all cells include - Ans the presence of cellular fluid, the possession of
gene c informa on, and a membrane serving as a cell boundary.
Anything that occupies space and mass is called... - Ans maBer
Trees of life illustrate the phylogene c rela onships of all organisms were tradi onally based on
_____; newer methods for determining phylogeny rely on _____. - Ans Morphology; nucleic
acid sequences
Covalent bonds - Ans result from sharing electrons
One nucleo de contains one - Ans phosphate, pentose sugar, nitrogen base
Among the types of microorganisms, the ___. are noncellullar - Ans viruses
Using microbes to detoxify a site contaminated with heavy metals is an example of ____ - Ans
Bioremedia on
C6H12O6+C6H12O6---> C12H22O11+H2O - Ans a dehydra on synthesis
solu on REVISED EDITION NEW!! 2025/2026 RATED A+
In the nitrogen cycle, which of the following steps involves removal of nitrogen from the
atmosphere by bacteria? - Ans Nitrogen Fixa on
If enough H+ ions are added to pure water to raise the H+ concentra on of the solu on to ten
mes higher than the original concentra on, what is the resul ng OH- concentra on of the
solu on? - Ans 10-8 M
Fungi are able to reproduce asexually by crea ng conidiospores and sporangiospores. Which of
the following is an accurate explana on for why it is advantageous that they are also capable of
sexual reproduc on? - Ans Offspring from two parents may have varia ons in form and func on
that contribute to survival of the species.
In a laboratory bacterial cell culture that has been infected by a virus, plaques are areas in
which... - Ans the virus has spread and le+ behind the remains of dead cells.
The sun's energy is delivered as discrete packets that travel as waves and are called - Ans
Photons
What is a characteris c of aerobic respira on? - Ans The process includes glycolysis, the Krebs
cycle, and the electron transport chain.
In comple ng protein synthesis in a prokaryote, what basic message is carried by a specialized
codon that has no corresponding tRNA? - Ans "Terminate here."
,Microbial drug resistance can be caused by muta ons or by introduc on of new genes into a
popula on. Which of the following can only be caused by the introduc on of new genes into a
popula on? - Ans new enzymes that inac vate the drug are synthesized
Why do the hands, feet, and breasts have more lympha c vessels for host defense than other
areas of the human body? - Ans They have a high risk for infec on due to frequent contact.
Penicillin func ons as an an microbial agent by inhibi ng bacterial... - Ans cell wall synthesis.
Which class of eukaryo c microorganisms can be subdivided into groups such as Mas gophora,
Sarcodina, Ciliophora, and Apicomplexa? - Ans Protozoa
Gene c material can be excised from one chromosome and directly integrated into another
via... - Ans transposons
What immune cell secretes numerous cytokines that help to coordinate the response of other
immune cells? - Ans TH cell
What enzymes are used to amplify DNA during PCR? - Ans DNA polymerase
Which of the following is a scien fic name? - Ans Streptococcus pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological medium for growing
gram-nega ve bacteria from complex environments. It contains two dyes, eosin and methylene
blue, as well as the sugar lactose. Eosin is a pH indicator that changes color when the medium is
acidic, while methylene blue inhibits the growth of most gram-posi ve bacteria. If an organism
consumes lactose, acid will be produced, causing the bacterial colonies to change color.
Based upon this descrip on, this medium is ______ - Ans differen al and selec ve
, A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last
Universal Common Ancestor would show Archaea - Ans branching off the Domain Eukarya.
In the cell cytoplasm, molecules of ATP are a - Ans solute
The _____ of the microscope holds and allows selec on of the objec ve lenses. - Ans
nosepiece
Characteris cs shared by all cells include - Ans the presence of cellular fluid, the possession of
gene c informa on, and a membrane serving as a cell boundary.
Anything that occupies space and mass is called... - Ans maBer
Trees of life illustrate the phylogene c rela onships of all organisms were tradi onally based on
_____; newer methods for determining phylogeny rely on _____. - Ans Morphology; nucleic
acid sequences
Covalent bonds - Ans result from sharing electrons
One nucleo de contains one - Ans phosphate, pentose sugar, nitrogen base
Among the types of microorganisms, the ___. are noncellullar - Ans viruses
Using microbes to detoxify a site contaminated with heavy metals is an example of ____ - Ans
Bioremedia on
C6H12O6+C6H12O6---> C12H22O11+H2O - Ans a dehydra on synthesis
