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Straighterline Micro 250 final prep Flashcards _ 100- SURE ANWSERS.pdf
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8/31/24, 2:16 PMStraighterline Micro 250 final prep
Jeremiah
Terms in this set (227)
Which class of eukaryotic microorganisms Protozoa
can be subdivided into groups such as
Mastigophora, Sarcodina, Ciliophora, and
Apicomplexa?
A. Helminths
B. Algae
C. Protozoa
D. Fungi
Genetic material can be excised from one transposons.
chromosome and directly integrated into
another via
A. conjugation.
B. transformation.
C. transduction.
D. transposons.
1/19
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Which immune cell secretes numerous TH cell
cytokines that help to coordinate the
response of other immune cells?
A. B cell
B. TH cell
C. TC cell
D. Platelets
Which of the following enzymes are used to DNA polymerase
amplify DNA during PCR?
A. restriction endonuclease
B. DNA polymerase
C. reverse transcriptase
D. DNA ligase
In the nitrogen cycle, which of the following nitrogen fixation, In nitrogen fixation, nitrogen is removed from the atmosphere by
steps involves removal of nitrogen from the nitrogen-fixing bacteria and converted to ammonia.
atmosphere by bacteria?
If enough h+ ions are added to pure water to 10 -8M
raise the H+ concentration of the solution to
ten times higher than the original
concentration, what is the resulting OH-
concentration of the solution?
Fungi are able to reproduce asexually by Offspring from two parents may have variations in form and function that contribute to
creating conidiospores and survival of the species.
sporangiospores. Which of the following is
an accurate explanation for why it is
advantageous that they are also capable of
sexual reproduction?
Select one:
a. Asexually produced offspring are more
likely to compete for resources and will kill
off the parental fungi.
b. Fungi normally produce sexually but
produce asexually in harsh conditions such
as severe drought.
c. Offspring from two parents may have
variations in form and function that
contribute to survival of the species.
d. Sexual reproduction produces more
offspring at a faster rate than spore
formation.
2/19
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In a laboratory bacterial cell culture that has the virus has spread and left behind the remains of dead cells.
been infected by a virus, plaques are areas in
which
Select one:
a. bacterial cells are resistant to the virus and
have not been infected.
b. there is no nutrient available for the
bacteria to grow.
c. the virus has spread and left behind the
remains of dead cells.
d. the virus has not yet spread to that area of
cells.
The sun's energy is delivered as discrete photons.
packets that travel as waves and are called
Select one:
a. ATP.
b. carotenoids.
c. NADP.
d. photons.
Which of the following is a characteristic of The three stages of aerobic respiration are glycolysis, the Krebs cycle, and the electron
aerobic respiration? transport chain.
Select one:
a. Oxygen-containing ions act as the final
electron acceptors in electron transport.
b. The process includes glycolysis, the Krebs
cycle, and the electron transport chain.
c. Aerobic respiration produces a total of 2
ATP molecules.
d. Aerobic respiration produces lactic acid.
n completing protein synthesis in a "Terminate here." The specialized codon signals the end of protein synthesis; there is
prokaryote, what basic message is carried by not RNA because it is only needed if the process is to continue.
a specialized codon that has no
corresponding tRNA?
Select one:
a. "Fold peptide chain."
b. "Terminate here."
c. "Add cofactor."
d. "Clip starting amino acid."
Microbial drug resistance can be caused by new enzymes that inactivate the drug are synthesized. This can only occur if new genes
mutations or by introduction of new genes are introduced into the population.
into a population. Which of the following can
only be caused by the introduction of new
genes into a population?
Select one:
a. a metabolic pathway in the bacterium is
shut down
b. binding sites for the drug are reduced in
number or affinity to the drug
c. new enzymes that inactivate the drug are
synthesized
d. uptake of the drug into the bacterium is
diminished
Straighterline Micro 250 final prep
3/19
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