Question 1

Which of the following provides support for the endosymbiotic hypothesis?

Accepted Answer

A)   Double membranes are around mitochondria and chloroplasts.
B)   Mitochondria and chloroplasts have their own genomes.
C)   Mitochondria and chloroplasts can synthesize proteins.
D)   Mitochondria and chloroplasts contain genes that are strikingly similar to bacterial genes.
E)   All of the above statements provide support for the endosymbiotic hypothesis.F) C) and D)
G) B) and E)

Question 2

Which of the following groups contains at least some members that have cell walls?

Accepted Answer

A)   protists only
B)   bacteria only
C)   archaea only
D)   protists, bacteria and archaea
E)   None of the members of the above groups have cell walls.F) B) and D)
G) B) and C)

Question 3

Which of the following applies to algae but not protozoans?

Accepted Answer

A)   chemoheterotrophs
B)   have a means of locomotion
C)   are eukaryotes
D)   were previously classified as animals
E)   photosyntheticF) A) and B)
G) All of the above

Question 4

Which statement about bacteria is incorrect?

Accepted Answer

A)   All bacteria are pathogenic to humans.
B)   Bacteria are prokaryotes.
C)   Most bacteria are chemoheterotrophs.
D)   Bacterial cells reproduce by binary fission.
E)   A bacterial cell has one chromosome.F) A) and D)
G) A) and C)

Question 5

Which sporozoan characteristic is most consistent with a parasitic lifestyle?

Accepted Answer

A)   lack of motility
B)   chemoheterotrophism
C)   unicellular
D)   lack of light-absorbing pigment
E)   eukaryoticF) B) and C)
G) A) and D)

Question 6

Naked strands of RNA not covered by a capsid are

Accepted Answer

A)   viroids.
B)   archaea.
C)   prions.
D)   retroviruses.
E)   viruses.F) A) and B)
G) B) and C)

Question 7

Which of these is mismatched?

Accepted Answer

A)   Paramecium - ciliate
B)   Chlamydomonas - green alga
C)   Plasmodium - sporozoan
D)   Giardia - zooflagellate
E)   Salmonella - amoebaF) A) and B)
G) B) and D)

Question 8

Penicillin is an antibiotic drug that interferes with peptidoglycan synthesis in bacteria, eventually resulting in cell death. What effect would you predict if you applied penicillin to archaea?

Accepted Answer

A)   The archaea would die due to the weakening of their cell walls.
B)   The archaea would not be affected, since they do not contain peptidoglycan.
C)   The archaea would not be affected, since none of the archaea have cell walls.
D)   The archaea would die due to their inability to synthesize protein for their cell walls.
E)   None of the choices are correct.F) B) and C)
G) A) and E)

Question 9

In which type of environment would you be most likely to find methanogenic archaea?

Accepted Answer

A)   hot, acidic
B)   high salt concentration
C)   anaerobic
D)   aerobic
E)   dryF) A) and B)
G) A) and C)

Question 10

As a result of drinking contaminated water, a patient contracts amoebic dysentery. Would an antibiotic drug that inhibits peptidoglycan synthesis be beneficial in treating the amoeba infection?

Accepted Answer

A)   Yes, because it would weaken the cell walls of the amoebas and cause them to die.
B)   No, because amoeba are not bacteria and do not have peptidoglycan.
C)   Yes, because antibiotics are always beneficial in treating infectious diseases.
D)   No, because the cell walls of the amoeba that causes dysentery contain calcium carbonate, not peptidoglycan.
E)   Yes, because the amoeba would not be able to reproduce.F) A) and E)
G) A) and D)

Question 11

Some species of pathogenic bacteria are able to attack specific cells in the human body due to structures called

Accepted Answer

A)   adhesion factors.
B)   bioremediaton factors.
C)   flagella.
D)   conjugation pili.
E)   cilia.F) D) and E)
G) A) and E)

Question 12

Which of the following is unique to the lysogenic cycle?

Accepted Answer

A)   attachment
B)   penetration
C)   integration
D)   biosynthesis
E)   maturationF) None of the above
G) B) and E)

Question 13

Which statement about slime molds is incorrect?

Accepted Answer

A)   Slime molds are eukaryotic.
B)   Slime molds are classified in supergroup Ameobozoa.
C)   Slime molds produce spores.
D)   Slime molds are chemoheterotrophs.
E)   Slime molds are most commonly found in coastal areas.F) A) and D)
G) D) and E)

Question 14

Which of the following are acellular?

Accepted Answer

A)   prions
B)   protozoans
C)   archaea
D)   algae
E)   bacteriaF) B) and E)
G) None of the above

Question 15

Which species are representatives of the green algae?

Accepted Answer

A)   diatoms, Volvox, and Spirogyra
B)   coralline algae, Volvox, and Spirogyra
C)   Chlamydomonas, Volvox, and Spirogyra
D)   Chlamydomonas, Volvox, and coralline
E)   diatoms, Chlamydomonas, and VolvoxF) B) and C)
G) A) and C)

Exam 17: Viruses, Bacteria, and Protists

Which of the following groups contains at least some members that have cell walls?

Correct Answer
verified

Which of the following applies to algae but not protozoans?

Correct Answer
verified

Naked strands of RNA not covered by a capsid are

Correct Answer
verified

Which statement about slime molds is incorrect?

Correct Answer
verified

Which sporozoan characteristic is most consistent with a parasitic lifestyle?

Correct Answer
verified

Which of the following are acellular?

Correct Answer
verified

Some species of pathogenic bacteria are able to attack specific cells in the human body due to structures called

Correct Answer
verified

Which statement about bacteria is incorrect?

Correct Answer
verified

Which species are representatives of the green algae?

Correct Answer
verified

As a result of drinking contaminated water, a patient contracts amoebic dysentery. Would an antibiotic drug that inhibits peptidoglycan synthesis be beneficial in treating the amoeba infection?

Correct Answer
verified

In which type of environment would you be most likely to find methanogenic archaea?

Correct Answer
verified

Which of these is mismatched?

Correct Answer
verified

Which of the following provides support for the endosymbiotic hypothesis?

Correct Answer
verified

Penicillin is an antibiotic drug that interferes with peptidoglycan synthesis in bacteria, eventually resulting in cell death. What effect would you predict if you applied penicillin to archaea?

Correct Answer
verified

Which of the following is unique to the lysogenic cycle?

Correct Answer
verified

Exam 17: Viruses, Bacteria, and Protists

Which of the following groups contains at least some members that have cell walls?

Correct AnswerverifiedShow Answer

Which of the following applies to algae but not protozoans?

Correct AnswerverifiedShow Answer

Naked strands of RNA not covered by a capsid are

Correct AnswerverifiedShow Answer

Which statement about slime molds is incorrect?

Correct AnswerverifiedShow Answer

Which sporozoan characteristic is most consistent with a parasitic lifestyle?

Correct AnswerverifiedShow Answer

Which of the following are acellular?

Correct AnswerverifiedShow Answer

Some species of pathogenic bacteria are able to attack specific cells in the human body due to structures called

Correct AnswerverifiedShow Answer

Which statement about bacteria is incorrect?

Correct AnswerverifiedShow Answer

Which species are representatives of the green algae?

Correct AnswerverifiedShow Answer

As a result of drinking contaminated water, a patient contracts amoebic dysentery. Would an antibiotic drug that inhibits peptidoglycan synthesis be beneficial in treating the amoeba infection?

Correct AnswerverifiedShow Answer

In which type of environment would you be most likely to find methanogenic archaea?

Correct AnswerverifiedShow Answer

Which of these is mismatched?

Correct AnswerverifiedShow Answer

Which of the following provides support for the endosymbiotic hypothesis?

Correct AnswerverifiedShow Answer

Penicillin is an antibiotic drug that interferes with peptidoglycan synthesis in bacteria, eventually resulting in cell death. What effect would you predict if you applied penicillin to archaea?

Correct AnswerverifiedShow Answer

Which of the following is unique to the lysogenic cycle?

Correct AnswerverifiedShow Answer

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