MICROBIOLOGY 2460 EXAM 2 2027 UPDATE WITH COMPLETE
SOLUTIONS
Question 1.
The term prokaryotes refers to which of the following?
A. very small organisms
B. unicellular organisms that have no nucleus
C. multicellular organisms
D. cells that resemble animal cells more than plant cells.
Correct Answer: B
Question 2.
The term microbiota a. all microorganisms b. all of the microorganisms relationship c. all
microorganisms body d. all microorganisms
Correct Answer: refers to which of the following? C of the same species involved
in a symbiotic in a certain region of the human in a certain geographic region
Question 3.
Which of the following between two prokaryotic population benefits a. mutualism b.
commensalism c. parasitism d. neutralism
Correct Answer: refers to the type of interaction B populations in which one and
the other is not affected?
Question 4.
Which of the following describes Proteobacteria in domain Bacteria? a. phylum b. class c.
species d. genus
Correct Answer: A
Question 5.
All Alphaproteobacteria a. oligotrophs b. intracellular c. pathogenic d. all of the above e.
none of the above
Correct Answer: A are which of the following?
Question 6.
Class Betaproteobacteria following genera? a. Neisseria. b. Bordetella. c. Leptothrix. d.
Campylobacter.
Correct Answer: includes all but which of the D
,Question 7.
Haemophilus influenzae of the following? a. influenza b. dysentery c. upper respiratory d.
hemophilia
Correct Answer: is a common cause of which C tract infections
Question 8.
Which of the following is the organelle that spirochetes use to propel themselves? a.
plasma membrane b. axial filament c. pilum d. fimbria
Correct Answer: B
Question 9.
Which of the following in the human gut? a. cyanobacteria b. staphylococci c. Borrelia d.
Bacteroides
Correct Answer: bacteria are the most prevalent D
Question 10.
Which of the following refers to photosynthesis performed by bacteria with the use of
water as the donor of electrons? a. oxygenic b. anoxygenic c. heterotrophic d.
phototrophic
Correct Answer: A
Question 11.
Which of the following high G+C gram-positive? a. Corynebacterium reus c. Bacillus
anthracis d. Streptococcus
Correct Answer: bacterial species is classified as A diphtheriae b.
Staphylococcus au- pneumoni
Question 12.
The term "deeply branching" refers to which of the following? a. the cellular shape of
deeply branching bacteria b. the position in the evolutionary tree of deeply branching
bacteria c. the ability of deeply branching bacteria to live in deep ocean waters d. the
pattern of growth in culture of deeply branching bacteria
Correct Answer: B
Question 13.
Which of these deeply branching bacteria is considered a polyextremophile? a. Aquifex
pyrophilus b. Deinococcus radiodurans c. Staphylococcus aureus d. Mycobacterium
tuberculosis
, Correct Answer: B
Question 14.
Archaea and Bacteria ________. a. genetics b. cell wall structure c. ecology d. unicellular
structure
Correct Answer: are most similar in terms of their D
Question 15.
Which of the following methane? a. They reduce carbon gen. b. They live in the c. They are
always covered on Mars.
Correct Answer: is true of archaea that produce B dioxide in the presence of
nitro- most extreme environments. anaerobes. d. They have been dis-
Question 16.
Which genus includes the causative agent for malaria? a. Euglena b. Paramecium c.
Plasmodium d. Trypanosoma
Correct Answer: C
Question 17.
Which protist is a taminate water supplies a. Plasmodium vivax b. Toxoplasma gondii c.
Giardia lamblia d. Trichomonas vaginalis
Correct Answer: concern because of its ability to con- C and cause diarrheal
illness?
Question 18.
A fluke is classified a. Nematoda b. Rotifera c. Platyhelminthes d. Annelida
Correct Answer: C within which of the following?
Question 19.
A nonsegmented worm is found during a routine colonoscopy of an individual who reported
having abdominal cramps, nausea, and vomiting. This worm is likely which of the
following? a. nematode b. fluke c. trematode d. annelid
Correct Answer: A
Question 20.
A segmented worm organs in each segment. the intestinal wall. a. fluke b. nematode c.
cestode d. annelid
SOLUTIONS
Question 1.
The term prokaryotes refers to which of the following?
A. very small organisms
B. unicellular organisms that have no nucleus
C. multicellular organisms
D. cells that resemble animal cells more than plant cells.
Correct Answer: B
Question 2.
The term microbiota a. all microorganisms b. all of the microorganisms relationship c. all
microorganisms body d. all microorganisms
Correct Answer: refers to which of the following? C of the same species involved
in a symbiotic in a certain region of the human in a certain geographic region
Question 3.
Which of the following between two prokaryotic population benefits a. mutualism b.
commensalism c. parasitism d. neutralism
Correct Answer: refers to the type of interaction B populations in which one and
the other is not affected?
Question 4.
Which of the following describes Proteobacteria in domain Bacteria? a. phylum b. class c.
species d. genus
Correct Answer: A
Question 5.
All Alphaproteobacteria a. oligotrophs b. intracellular c. pathogenic d. all of the above e.
none of the above
Correct Answer: A are which of the following?
Question 6.
Class Betaproteobacteria following genera? a. Neisseria. b. Bordetella. c. Leptothrix. d.
Campylobacter.
Correct Answer: includes all but which of the D
,Question 7.
Haemophilus influenzae of the following? a. influenza b. dysentery c. upper respiratory d.
hemophilia
Correct Answer: is a common cause of which C tract infections
Question 8.
Which of the following is the organelle that spirochetes use to propel themselves? a.
plasma membrane b. axial filament c. pilum d. fimbria
Correct Answer: B
Question 9.
Which of the following in the human gut? a. cyanobacteria b. staphylococci c. Borrelia d.
Bacteroides
Correct Answer: bacteria are the most prevalent D
Question 10.
Which of the following refers to photosynthesis performed by bacteria with the use of
water as the donor of electrons? a. oxygenic b. anoxygenic c. heterotrophic d.
phototrophic
Correct Answer: A
Question 11.
Which of the following high G+C gram-positive? a. Corynebacterium reus c. Bacillus
anthracis d. Streptococcus
Correct Answer: bacterial species is classified as A diphtheriae b.
Staphylococcus au- pneumoni
Question 12.
The term "deeply branching" refers to which of the following? a. the cellular shape of
deeply branching bacteria b. the position in the evolutionary tree of deeply branching
bacteria c. the ability of deeply branching bacteria to live in deep ocean waters d. the
pattern of growth in culture of deeply branching bacteria
Correct Answer: B
Question 13.
Which of these deeply branching bacteria is considered a polyextremophile? a. Aquifex
pyrophilus b. Deinococcus radiodurans c. Staphylococcus aureus d. Mycobacterium
tuberculosis
, Correct Answer: B
Question 14.
Archaea and Bacteria ________. a. genetics b. cell wall structure c. ecology d. unicellular
structure
Correct Answer: are most similar in terms of their D
Question 15.
Which of the following methane? a. They reduce carbon gen. b. They live in the c. They are
always covered on Mars.
Correct Answer: is true of archaea that produce B dioxide in the presence of
nitro- most extreme environments. anaerobes. d. They have been dis-
Question 16.
Which genus includes the causative agent for malaria? a. Euglena b. Paramecium c.
Plasmodium d. Trypanosoma
Correct Answer: C
Question 17.
Which protist is a taminate water supplies a. Plasmodium vivax b. Toxoplasma gondii c.
Giardia lamblia d. Trichomonas vaginalis
Correct Answer: concern because of its ability to con- C and cause diarrheal
illness?
Question 18.
A fluke is classified a. Nematoda b. Rotifera c. Platyhelminthes d. Annelida
Correct Answer: C within which of the following?
Question 19.
A nonsegmented worm is found during a routine colonoscopy of an individual who reported
having abdominal cramps, nausea, and vomiting. This worm is likely which of the
following? a. nematode b. fluke c. trematode d. annelid
Correct Answer: A
Question 20.
A segmented worm organs in each segment. the intestinal wall. a. fluke b. nematode c.
cestode d. annelid
