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final exam straighterline microbiology exam with correct answers 2024
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In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? correct answers Nitrogen Fixation If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what i...

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  • November 5, 2024
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final exam straighterline microbiology

In the nitrogen cycle, which of the following steps involves removal of
nitrogen from
atmosphere bythe
bacteria? correct answers Nitrogen
Fixation
If enough H+ ions are added to pure water to raise the H+ concentration of
theten
to solution
times higher than the original concentration, what is the
resulting OH- of the solution? correct answers
concentration
10-8 M
Fungi are able to reproduce asexually by creating conidiospores and
sporangiospores.
Which of the following is an accurate explanation for why it is
advantageous
are also capable that
of they
sexual reproduction? correct answers Offspring from
two parents
may have variations in form and function that contribute to survival of
the species.
In a laboratory bacterial cell culture that has been infected by a virus,
plaques
in which...arecorrect
areas answers the virus has spread and left behind the
remains of dead
cells
.
The sun's energy is delivered as discrete packets that travel as waves and
are called
correct answers
Photons
What is a characteristic of aerobic respiration? correct answers The
process includes
glycolysis, the Krebs cycle, and the electron
transport chain.
In completing protein synthesis in a prokaryote, what basic message is
carried by acodon that has no corresponding tRNA? correct answers
specialized
"Terminate here."
Microbial drug resistance can be caused by mutations or by introduction of
new agenes
into population. Which of the following can only be caused by the
introduction
genes into a of new
population? correct answers new enzymes that inactivate
the drug are
synthesize
d
Why do the hands, feet, and breasts have more lymphatic vessels for host
defense
other areas
thanof the human body? correct answers They have a high risk for
infection
to frequentdue
contact.
Penicillin functions as an antimicrobial agent by inhibiting bacterial...
correct
cell wallanswers
synthesis.
Which class of eukaryotic microorganisms can be subdivided into
groups such asSarcodina, Ciliophora, and Apicomplexa? correct answers
Mastigophora,
Protozoa

, Genetic material can be excised from one chromosome and directly
integrated
another intocorrect answers
via...
transposons
What immune cell secretes numerous cytokines that help to coordinate the
response
other of
immune cells? correct answers
TH cell
What enzymes are used to amplify DNA during PCR? correct
answers DNA
polymeras
e
Which of the following is a scientific name? correct answers Streptococcus
pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological
medium gram-negative
growing for bacteria from complex environments. It contains two
dyes,methylene
and eosin 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-
positive bacteria. If an organism consumes lactose, acid will be produced,
causing the
bacterial colonies to change
color.
Based upon this description, this medium is correct answers differential
and
selectiv
e
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding
from the Last
Universal Common Ancestor would show Archaea correct answers
branching off the
Domain
Eukarya.
In the cell cytoplasm, molecules of ATP are a correct
answers solute
The of the microscope holds and allows selection of the objective
lenses.
answers correct
nosepiece
Characteristics shared by all cells include correct answers the presence of
cellular
the possession
fluid, of genetic information, and a membrane serving as a cell
boundary.
Anything that occupies space and mass is called... correct
answers matter
Trees of life illustrate the phylogenetic relationships of all organisms were
traditionally
based on ; newer methods for determining phylogeny rely on .
answers Morphology; nucleic acid
correct
sequences
Covalent bonds correct answers result from sharing
electrons
One nucleotide contains one correct answers phosphate, pentose sugar,
nitrogen base
Among the types of microorganisms, the . are noncellullar correct answers
viruses
Using microbes to detoxify a site contaminated with heavy metals is an
exampleanswers
correct of
Bioremediation

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