Question 1

The early report that Stanley Miller had created "Life in a Test Tube" in his experiment to re-create chemical conditions on Earth before life arose was correct.

Accepted Answer

A) True 
 B)False

Question 2

The primary component making up the cell walls of bacteria is

Accepted Answer

A)  peptidoglycan.
B)  glucose.
C)  All answers are correct.
D)  cellulose.
E)  chitin.F) C) and D)
G) A) and B)

Question 3

The "endosymbiont theory" states that eukaryotic cells work together to form a multicellular organism.

Accepted Answer

A) True 
 B)False

Question 4

Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the bloodstream,these microtubules are used to attach to red blood cells.Plasmodium falciparum is which of the following?

Accepted Answer

A)  a protozoan
B)  an alga
C)  a slime mold
D)  a diatom
E)  an apicomplexanF) A) and B)
G) None of the above

Question 5

Mitochondria in algae are thought to have arisen from which source?

Accepted Answer

A)  cyanobacteria
B)  anaerobic bacteria
C)  photosynthetic viruses
D)  aerobic bacteria
E)  Algae lack mitochondria.F) C) and D)
G) B) and D)

Question 6

The domain (domains) that contain prokaryotes is (are)

Accepted Answer

A)  ArchaeA.
B)  Bacteria.
C)  both Archaea and Bacteria.
D)  Eukarya.
E)  both Bacteria and Eukarya.F) A) and B)
G) All of the above

Question 7

A prokaryote that occupies a habitat that is characterized by extreme heat (above 50 degrees Celsius) is a(an)

Accepted Answer

A)  thermophile.
B)  acidophile.
C)  halophile.
D)  basophile.
E)  hydrophilE.F) A) and E)
G) C) and D)

Question 8

Chloroplasts arose by endosymbiosis of ______.

Accepted Answer

A)  an aerobic bacterium
B)  a photosynthetic bacterium
C)  an anaerobic bacterium
D)  an aerobic archaeon
E)  a photosynthetic archaeonF) C) and D)
G) D) and E)

Question 9

The structures of prokaryotes that are used to transfer DNA from one cell to another are

Accepted Answer

A)  sex pili.
B)  flagella.
C)  endospores.
D)  calcium carbonate threads.
E)  cilia.F) A) and E)
G) A) and D)

Question 10

Mitochondria arose by endosymbiosis of ______.

Accepted Answer

A)  an anaerobic bacterium
B)  a photosynthetic bacterium
C)  an aerobic bacterium
D)  an aerobic archaeon
E)  a photosynthetic archaeonF) A) and E)
G) B) and D)

Question 11

DNA that is separate and apart from the chromosome in a prokaryote is a(n)

Accepted Answer

A)  ribosome.
B)  endospore.
C)  nucleus.
D)  nucleoiD.
E)  plasmid.F) A) and E)
G) A) and B)

Question 12

Fungi and plants are similar because they both

Accepted Answer

A)  carry out photosynthesis.
B)  have cellulose as the main component of their cell walls.
C)  have glycogen as the main storage carbohydrate.
D)  All answers are correct.
E)  have cell walls.F) B) and E)
G) None of the above

Question 13

Euglena and dinoflagellates have chloroplasts and flagella.This means they are which of the following?

Accepted Answer

A)  photosynthetic only
B)  mobile only
C)  multicellular only
D)  both photosynthetic and mobile
E)  both multicellular and mobileF) B) and E)
G) B) and D)

Question 14

Vibrio cholera is the cause of cholera,and has a single flagellum from one end like a tail.A characteristic of this organism is

Accepted Answer

A)  an ability to avoid ingestion by cells in the immune system.
B)  an ability to induce a large antibody response.
C)  an ability to move in the direction opposite the flagellum.
D)  an ability to transmit DNA to other bacteria.
E)  an ability to attach to cells in the host organism's intestines.F) B) and D)
G) B) and E)

Question 15

Pili are bacterial structures used primarily for motility.

Accepted Answer

A) True 
 B)False

Question 16

Because archaea were first found in environments that lacked oxygen or were very hot,acidic,or salty,they were nicknamed "extremophiles."

Accepted Answer

A) True 
 B)False

Question 17

Where did the first life on Earth evolve?

Accepted Answer

A)  in the ocean
B)  Scientists do not know.
C)  on land
D)  somewhere else in the universe
E)  in a freshwater habitatF) C) and D)
G) None of the above

Question 18

Cytoplasmic extensions by which some protozoa move are

Accepted Answer

A)  ciliA.
B)  flagella.
C)  pseudopodia.
D)  All answers are correct.
E)  pili.F) B) and C)
G) C) and D)

Question 19

The region of a prokaryotic cell where the bacterial chromosome (DNA) is located in the

Accepted Answer

A)  cell membrane.
B)  nucleus.
C)  cell wall.
D)  nucleoiD.
E)  ribosomE.F) D) and E)
G) B) and E)

Question 20

The structure that assembles proteins in the prokaryote is the

Accepted Answer

A)  plasmid.
B)  ribosome.
C)  cell membrane.
D)  endospore.
E)  nucleoid.F) B) and E)
G) B) and D)

Exam 15: Evolution and Diversity of Microbial Life

The primary component making up the cell walls of bacteria is

Correct AnswerverifiedShow Answer

Fungi and plants are similar because they both

Correct AnswerverifiedShow Answer

Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the bloodstream,these microtubules are used to attach to red blood cells.Plasmodium falciparum is which of the following?

Correct AnswerverifiedShow Answer

A prokaryote that occupies a habitat that is characterized by extreme heat (above 50 degrees Celsius) is a(an)

Correct AnswerverifiedShow Answer

Chloroplasts arose by endosymbiosis of ______.

Correct AnswerverifiedShow Answer

Vibrio cholera is the cause of cholera,and has a single flagellum from one end like a tail.A characteristic of this organism is

Correct AnswerverifiedShow Answer

The "endosymbiont theory" states that eukaryotic cells work together to form a multicellular organism.

Correct AnswerverifiedShow Answer

Pili are bacterial structures used primarily for motility.

Correct AnswerverifiedShow Answer

The domain (domains) that contain prokaryotes is (are)

Correct AnswerverifiedShow Answer

Mitochondria in algae are thought to have arisen from which source?

Correct AnswerverifiedShow Answer

The region of a prokaryotic cell where the bacterial chromosome (DNA) is located in the

Correct AnswerverifiedShow Answer

Where did the first life on Earth evolve?

Correct AnswerverifiedShow Answer

The structure that assembles proteins in the prokaryote is the

Correct AnswerverifiedShow Answer

Cytoplasmic extensions by which some protozoa move are

Correct AnswerverifiedShow Answer

Euglena and dinoflagellates have chloroplasts and flagella.This means they are which of the following?

Correct AnswerverifiedShow Answer

Because archaea were first found in environments that lacked oxygen or were very hot,acidic,or salty,they were nicknamed "extremophiles."

Correct AnswerverifiedShow Answer

Mitochondria arose by endosymbiosis of ______.

Correct AnswerverifiedShow Answer

DNA that is separate and apart from the chromosome in a prokaryote is a(n)

Correct AnswerverifiedShow Answer

The structures of prokaryotes that are used to transfer DNA from one cell to another are

Correct AnswerverifiedShow Answer

The early report that Stanley Miller had created "Life in a Test Tube" in his experiment to re-create chemical conditions on Earth before life arose was correct.

Correct AnswerverifiedShow Answer

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