Question 1

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. 
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.

Question 2

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. 
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.

Question 3

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. 
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.

Question 4

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)  eukaryotic 
A)  lack of motility 
B)  chemoheterotrophism 
C)  unicellular 
D)  lack of light-absorbing pigment 
E)  eukaryotic

Question 5

Which of the following is unique to the lysogenic cycle?

Accepted Answer

A)  attachment 
B)  penetration 
C)  integration 
D)  biosynthesis 
E)  maturation 
A)  attachment 
B)  penetration 
C)  integration 
D)  biosynthesis 
E)  maturation

Question 6

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. 
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.

Question 7

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. 
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.

Question 8

Which of the following are acellular?

Accepted Answer

A)  prions 
B)  protozoans 
C)  archaea 
D)  algae 
E)  bacteria 
A)  prions 
B)  protozoans 
C)  archaea 
D)  algae 
E)  bacteria

Question 9

Naked strands of RNA not covered by a capsid are

Accepted Answer

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

Question 10

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)  dry 
A)  hot, acidic 
B)  high salt concentration 
C)  anaerobic 
D)  aerobic 
E)  dry

Question 11

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. 
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.

Question 12

Which of these is mismatched?

Accepted Answer

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

Question 13

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)  photosynthetic 
A)  chemoheterotrophs 
B)  have a means of locomotion 
C)  are eukaryotes 
D)  were previously classified as animals 
E)  photosynthetic

Question 14

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 Volvox 
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 Volvox

Question 15

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

Exam 17: Viruses, Bacteria, and Protists

Which statement about bacteria is incorrect?

Which of the following provides support for the endosymbiotic hypothesis?

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

Which sporozoan characteristic is most consistent with a parasitic lifestyle?

Which of the following is unique to the lysogenic cycle?

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?

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?

Which of the following are acellular?

Naked strands of RNA not covered by a capsid are

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

Which statement about slime molds is incorrect?

Which of these is mismatched?

Which of the following applies to algae but not protozoans?

Which species are representatives of the green algae?

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

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