Question 1

At which temperature would you incubate microbes collected at Lost City?

Accepted Answer

A)   100°C,boiling point
B)   2°C,seawater temperature
C)   37°C,body temperature
D)   would vary,depending on collection point
E)   150°C to 170°C,vent-fluid temperatureF) A) and B)
G) C) and E)

Question 2

Which of the following statements about the domain Archaea is TRUE?

Accepted Answer

A)   Their genetic material is RNA.
B)   Their genetic material is housed in a nucleus.
C)   Many archaea can survive in the absence of oxygen.
D)   They have cell walls made of peptidoglycan.
E)   They are only found in extreme environments.F) C) and D)
G) B) and E)

Question 3

Hiking in the Himalayas,you have discovered a new high-elevation valley surrounded by towering mountain peaks.You obviously expect to find prokaryotes in the hospitable environments,such as meadows and streams.Where else would you expect to find them?

Accepted Answer

A)   living in glacial ice on the mountainsides
B)   inside the intestines of the mammals that live in the valley
C)   deep underground in mountain caves
D)   in salt-evaporation ponds
E)   All of the answers are correct.F) A) and D)
G) A) and C)

Question 4

Prokaryotes lack which of these organelles?

Accepted Answer

A)   nucleus
B)   mitochondria
C)   endoplasmic reticulum
D)   Golgi bodies
E)   all of theseF) B) and C)
G) A) and E)

Question 5

The research from Lost City and its inhabitants has scientists thinking about

Accepted Answer

A)   the evolution of life at deep-sea underwater hydrothermal vents.
B)   Earth's primordial past environment.
C)   life without oxygen.
D)   a possibility of life in outer space.
E)   All of the answers are correct.F) A) and B)
G) A) and C)

Question 6

Lost City microbial samples must be processed in an anaerobic glove bag because

Accepted Answer

A)   they are potentially harmful,and the anaerobic glove bag keeps scientists from being exposed to them.
B)   the glove bag keeps samples of individual species from contaminating one another,which would make the microbes impossible to culture.
C)   the anaerobic glove bag maintains a sterile environment that prevents any harmful microbes from growing.
D)   the microbes are anaerobic and might be damaged if exposed to oxygen;the anaerobic glove bag eliminates oxygen.
E)   All of the answers are correct.F) A) and D)
G) A) and E)

Question 7

Which does NOT describe members of the domain Archaea?

Accepted Answer

A)   They are genetically close to eukaryotes.
B)   Some live in extreme environments.
C)   They are prokaryotes.
D)   They do not have a nucleus.
E)   Their cell walls made of peptidoglycan.F) B) and C)
G) A) and E)

Question 8

Which statement is NOT true of archaea?

Accepted Answer

A)   They are prokaryotes.
B)   They are the first colonizers of earth.
C)   They are more closely related to eukaryotes than bacteria.
D)   They do not have a nucleus.
E)   They are not all extremophiles.F) A) and E)
G) None of the above

Question 9

Most of the organisms found at Lost City are

Accepted Answer

A)   1-cm-long animals.
B)   fish.
C)   eukaryotes.
D)   prokaryotes.
E)   archaea.F) A) and C)
G) All of the above

Question 10

How are samples collected from Lost City?

Accepted Answer

A)   by an underwater coring apparatus
B)   by using a deep-sea drilling machine
C)   by using remotely controlled machines
D)   by using high-pressurized scuba gear
E)   by snorkeling graduate studentsF) C) and D)
G) B) and C)

Question 11

All of the following are TRUE of eukaryotes,EXCEPT

Accepted Answer

A)   they are larger than prokaryotic cells.
B)   they are the types of cells found in humans.
C)   they have membrane-bound organelles.
D)   their DNA is found in the cytoplasm.
E)   they cannot live in as many habitats as prokaryotic cells.F) C) and D)
G) B) and C)

Question 12

Malaria is a mosquito-borne disease that can be deadly when transmitted to humans.Malaria is caused by a parasite.Knowing this,you expect the parasite to be a member of domain

Accepted Answer

A)   Bacteria.
B)   Archaea.
C)   Eukarya.
D)   Bacteria or Archaea equally.
E)   Archaea or Eukarya equally.F) B) and D)
G) B) and E)

Question 13

Which is NOT true of prokaryotes?

Accepted Answer

A)   They are found on you.
B)   They are found in you.
C)   They are the first colonizers of Earth.
D)   They are exclusive to land.
E)   They can inhabit extreme environments.F) C) and D)
G) A) and C)

Question 14

You have just identified an Archaea species that lives on the scales of a deep-water fish.You find that when you have a pure culture of the new species,it will not survive.Which statement could explain the inability to replicate the natural environment of the bacteria?

Accepted Answer

A)   The culture on the scales is being kept at high pressure.
B)   The new species lives in symbiosis with other organisms not present.
C)   The culture is not being kept at high temperatures.
D)   The new species requires an aerobic environment.
E)   all of theseF) A) and B)
G) C) and E)

Question 15

Bacteria living in the digestive tract of termites digest the cellulose of plant-cell walls,enabling the termite to feed on wood.The bacteria rely on the termite for food,and without these bacteria,the termites would starve.This relationship is an example of

Accepted Answer

A)   symbiosis.
B)   biosis.
C)   parasitism.
D)   anabolism.
E)   fraternization.F) B) and E)
G) B) and D)

Question 16

Which statement about prokaryotes is FALSE?

Accepted Answer

A)   Prokaryotes are diverse.
B)   All prokaryotes are bacteria.
C)   Prokaryotes are usually single celled.
D)   Prokaryotes are found in two domains.
E)   Prokaryotes cannot be seen by the naked eye.F) A) and B)
G) A) and C)

Question 17

Which statement regarding extremophiles is false?

Accepted Answer

A)   All extremophiles are in the Archaea domain.
B)   All Archaea are considered extremophiles.
C)   Extremophiles can survive without oxygen.
D)   Extremophiles are a type of prokaryote.
E)   Extremophiles may have been some of the earliest living organisms on Earth.F) All of the above
G) B) and E)

Question 18

Which is an adaptation for the survival of Helicobacter pylori in the intestinal gut?

Accepted Answer

A)   cilium
B)   capsule
C)   flagellum
D)   pili
E)   ribosomesF) A) and C)
G) B) and D)

Question 19

Where would a scientist most likely find an Archaean when sampling carbonate hydrothermal vents?

Accepted Answer

A)   at the outside base of a chimney
B)   midway up the outside of a chimney
C)   at the outside top of a chimney
D)   inside the chimney beside the warm vent flow
E)   inside the chimney far away from the warm vent flowF) None of the above
G) B) and D)

Question 20

All of the following are true of prokaryotes,EXCEPT

Accepted Answer

A)   they are unicellular.
B)   they have no membrane-bound organelles.
C)   their DNA floats freely in the cytoplasm.
D)   they are microscopic.
E)   they are less numerous than eukaryotes.F) C) and E)
G) A) and D)

Exam 17: Prokaryotic Diversity

All of the following are true of prokaryotes,EXCEPT

Correct AnswerverifiedShow Answer

At which temperature would you incubate microbes collected at Lost City?

Correct AnswerverifiedShow Answer

Which statement about prokaryotes is FALSE?

Correct AnswerverifiedShow Answer

You have just identified an Archaea species that lives on the scales of a deep-water fish.You find that when you have a pure culture of the new species,it will not survive.Which statement could explain the inability to replicate the natural environment of the bacteria?

Correct AnswerverifiedShow Answer

Bacteria living in the digestive tract of termites digest the cellulose of plant-cell walls,enabling the termite to feed on wood.The bacteria rely on the termite for food,and without these bacteria,the termites would starve.This relationship is an example of

Correct AnswerverifiedShow Answer

How are samples collected from Lost City?

Correct AnswerverifiedShow Answer

Which statement regarding extremophiles is false?

Correct AnswerverifiedShow Answer

Most of the organisms found at Lost City are

Correct AnswerverifiedShow Answer

Which is an adaptation for the survival of Helicobacter pylori in the intestinal gut?

Correct AnswerverifiedShow Answer

Which does NOT describe members of the domain Archaea?

Correct AnswerverifiedShow Answer

Which is NOT true of prokaryotes?

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Lost City microbial samples must be processed in an anaerobic glove bag because

Correct AnswerverifiedShow Answer

All of the following are TRUE of eukaryotes,EXCEPT

Correct AnswerverifiedShow Answer

The research from Lost City and its inhabitants has scientists thinking about

Correct AnswerverifiedShow Answer

Where would a scientist most likely find an Archaean when sampling carbonate hydrothermal vents?

Correct AnswerverifiedShow Answer

Which statement is NOT true of archaea?

Correct AnswerverifiedShow Answer

Hiking in the Himalayas,you have discovered a new high-elevation valley surrounded by towering mountain peaks.You obviously expect to find prokaryotes in the hospitable environments,such as meadows and streams.Where else would you expect to find them?

Correct AnswerverifiedShow Answer

Prokaryotes lack which of these organelles?

Correct AnswerverifiedShow Answer

Which of the following statements about the domain Archaea is TRUE?

Correct AnswerverifiedShow Answer

Malaria is a mosquito-borne disease that can be deadly when transmitted to humans.Malaria is caused by a parasite.Knowing this,you expect the parasite to be a member of domain

Correct AnswerverifiedShow Answer

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