Question 1

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 E

Question 2

Citrus tristeza virus CTV) damages and kills susceptible citrus trees around the world. It can be spread by grafting of infected plants, and by aphids, insects with piercing mouthparts that they use to suck fluid from plants. Which of the following would not limit the spread of CTV?

Accepted Answer

A)  use of insecticides to control the aphids 
B)  destruction of infected plants 
C)  production of transgenic citrus lines using genes from resistant plants 
D)  quarantine of fields with infected plants 
E)  application of antibiotic drugs to citrus plants 
A)  use of insecticides to control the aphids 
B)  destruction of infected plants 
C)  production of transgenic citrus lines using genes from resistant plants 
D)  quarantine of fields with infected plants 
E)  application of antibiotic drugs to citrus plants E

Question 3

What feature enables the paramecium to move?

Accepted Answer

A)  cilia 
B)  contractile vacuole 
C)  flagella 
D)  nucleus 
E)  pseudopodia 
A)  cilia 
B)  contractile vacuole 
C)  flagella 
D)  nucleus 
E)  pseudopodia A

Question 4

Which of these is mismatched?

Accepted Answer

A)  cilia - bacteria 
B)  flagella - bacteria 
C)  flagella - slime molds 
D)  flagella - water molds 
E)  pseudopods - amoebas 
A)  cilia - bacteria 
B)  flagella - bacteria 
C)  flagella - slime molds 
D)  flagella - water molds 
E)  pseudopods - amoebas

Question 5

Which of the following is not a characteristic of Paramecium?

Accepted Answer

A)  a macronucleus produces mRNA and directs metabolic functions 
B)  motile with cilia 
C)  a micronucleus functions in reproduction 
D)  engulfs prey with pseudopods 
E)  chemoheterotrophic 
A)  a macronucleus produces mRNA and directs metabolic functions 
B)  motile with cilia 
C)  a micronucleus functions in reproduction 
D)  engulfs prey with pseudopods 
E)  chemoheterotrophic

Question 6

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 7

Which statement about slime molds and water molds is incorrect?

Accepted Answer

A)  Both are eukaryotes. 
B)  Both have flagellated cells at some time in their life cycles. 
C)  Both form spores. 
D)  Both are chemoheterotrophs. 
E)  Both are fungi. 
A)  Both are eukaryotes. 
B)  Both have flagellated cells at some time in their life cycles. 
C)  Both form spores. 
D)  Both are chemoheterotrophs. 
E)  Both are fungi.

Question 8

Archaea

Accepted Answer

A)  have plasma membranes but lack cell walls. 
B)  have plasma membranes, and most have cell walls. 
C)  lack plasma membranes, but most have cell walls. 
D)  have neither plasma membranes nor cell walls. 
E)  have double plasma membranes and no cell walls. 
A)  have plasma membranes but lack cell walls. 
B)  have plasma membranes, and most have cell walls. 
C)  lack plasma membranes, but most have cell walls. 
D)  have neither plasma membranes nor cell walls. 
E)  have double plasma membranes and no cell walls.

Question 9

A virus is specific to a particular type of host cell because

Accepted Answer

A)  only certain hosts enter the environment inhabited by the virus. 
B)  not every virus contains metabolic machinery which can replace that of the host cell. 
C)  a glycoprotein on the viral capsid is a specific match to a receptor on the surface of a compatible host cell. 
D)  a host cell must be malfunctioning, or a virus cannot infect it. 
E)  the genome of the virus must be similar to that of its potential host. 
A)  only certain hosts enter the environment inhabited by the virus. 
B)  not every virus contains metabolic machinery which can replace that of the host cell. 
C)  a glycoprotein on the viral capsid is a specific match to a receptor on the surface of a compatible host cell. 
D)  a host cell must be malfunctioning, or a virus cannot infect it. 
E)  the genome of the virus must be similar to that of its potential host.

Question 10

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)  prokaryotes only 
E)  protists, bacteria, and archaea 
A)  protists only 
B)  bacteria only 
C)  archaea only 
D)  prokaryotes only 
E)  protists, bacteria, and archaea

Question 11

Which means of genetic recombination in bacteria often make use of pili?

Accepted Answer

A)  transformation 
B)  transduction 
C)  conjugation 
D)  both transformation and transduction 
E)  translocation 
A)  transformation 
B)  transduction 
C)  conjugation 
D)  both transformation and transduction 
E)  translocation

Question 12

Cyanobacteria are important producers, more specifically called

Accepted Answer

A)  photoautotrophs. 
B)  saprotrophs. 
C)  chemoautotrophs. 
D)  saproautotrophs. 
E)  photoheterotrophs. 
A)  photoautotrophs. 
B)  saprotrophs. 
C)  chemoautotrophs. 
D)  saproautotrophs. 
E)  photoheterotrophs.

Question 13

Bacteria that secrete digestive enzymes into their surroundings in order to decompose nonliving organic matter are called

Accepted Answer

A)  chemoautotrophs. 
B)  symbiotes. 
C)  saprotrophs. 
D)  parasites. 
E)  photoautotrophs. 
A)  chemoautotrophs. 
B)  symbiotes. 
C)  saprotrophs. 
D)  parasites. 
E)  photoautotrophs.

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

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 16

Penicillin is an antibiotic drug that interferes with cell wall 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 17

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 18

Algae are commonly grouped by their type of

Accepted Answer

A)  motility. 
B)  sexual reproduction. 
C)  pigment. 
D)  habitat. 
E)  feeding. 
A)  motility. 
B)  sexual reproduction. 
C)  pigment. 
D)  habitat. 
E)  feeding.

Question 19

Retroviruses

Accepted Answer

A)  contain DNA. 
B)  contain the enzyme reverse transcriptase. 
C)  produce RNA from DNA. 
D)  only invade plants. 
E)  produce protein directly from DNA. 
A)  contain DNA. 
B)  contain the enzyme reverse transcriptase. 
C)  produce RNA from DNA. 
D)  only invade plants. 
E)  produce protein directly from DNA.

Question 20

What structure enables a plant virus to move from one plant cell to the next?

Accepted Answer

A)  plasmodesmata 
B)  bacteriophages 
C)  capsids 
D)  insect vectors 
E)  recognition proteins 
A)  plasmodesmata 
B)  bacteriophages 
C)  capsids 
D)  insect vectors 
E)  recognition proteins

Exam 17: The Microorganisms: Viruses, Bacteria, and Protists

Which of these is mismatched?

Citrus tristeza virus CTV) damages and kills susceptible citrus trees around the world. It can be spread by grafting of infected plants, and by aphids, insects with piercing mouthparts that they use to suck fluid from plants. Which of the following would not limit the spread of CTV?

What feature enables the paramecium to move?

Which of these is mismatched?

Which of the following is not a characteristic of Paramecium?

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 statement about slime molds and water molds is incorrect?

Archaea

A virus is specific to a particular type of host cell because

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

Which means of genetic recombination in bacteria often make use of pili?

Cyanobacteria are important producers, more specifically called

Bacteria that secrete digestive enzymes into their surroundings in order to decompose nonliving organic matter are called

Which species are representatives of the green algae?

Which of the following are acellular?

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

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

Algae are commonly grouped by their type of

Retroviruses

What structure enables a plant virus to move from one plant cell to the next?

A View of Life

The Chemical Basis of Life

The Organic Molecules of Life

Inside the Cell

The Dynamic Cell

Energy for Life

Energy for Cells

Cellular Reproduction

Meiosis and the Genetic Basis of Sexual Reproduction

Patterns of Inheritance

DNA Biology and Technology

Biotechnology and Genomics

Genetic Counseling

Darwin and Evolution

Evolution on a Small Scale

Evolution on a Large Scale

The Plants and Fungi

The Animals

Plant Anatomy and Growth

Plant Responses and Reproduction

Being Organized and Steady

The Transport Systems

The Maintenance Systems

Digestion and Human Nutrition

Defenses Against Disease

The Control Systems

Sensory Input and Motor Output

Reproduction and Embryonic Development

Ecology of Populations

Communities and Ecosystems

Human Impact on the Biosphere

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