Question 1

If you sample prokaryotes from a kitchen faucet,there are likely to be bacteria,not archaea.

Accepted Answer

A) True 
 B)False

Question 2

Molecular evidence places fungi closer to plants than animals.

Accepted Answer

A) True 
 B)False

Question 3

Euglena and dinoflagellates have chloroplasts and flagella.This means they have what characteristic(s) ?

Accepted Answer

A)   photosynthetic only
B)   motile only
C)   multicellular only
D)   Both are photosynthetic and motile.
E)   Both are multicellular and motile.F) D) and E)
G) B) and E) D

Question 4

Chloroplasts arose by endosymbiosis of a(an)

Accepted Answer

A)   aerobic bacterium.
B)   photosynthetic bacterium.
C)   anaerobic bacterium.
D)   aerobic archaeon.
E)   photosynthetic archaeon.F) B) and C)
G) A) and E)

Question 5

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) None of the above
G) B) and E)

Question 6

The main storage carbohydrate in fungi is

Accepted Answer

A)   glycogen.
B)   glucose.
C)   starch.
D)   cellulose.
E)   chitin.F) A) and B)
G) A) and C)

Question 7

Microscopic reproductive cells produced by most fungi are

Accepted Answer

A)   hyphae.
B)   fruiting bodies.
C)   mycelia.
D)   gills.
E)   spores.F) All of the above
G) B) and D)

Question 8

RNA was the first molecule carrying genetic information.

Accepted Answer

A) True 
 B)False

Question 9

Antibiotics usually are not dangerous to humans when treating bacterial infections because most antibiotics exploit structures and functions in bacteria that are not present in host cells.

Accepted Answer

A) True 
 B)False  True

Question 10

The first life on Earth was

Accepted Answer

A)   prokaryotic.
B)   eukaryotic.
C)   prokaryotic and multicellular.
D)   eukaryotic and multicellular.
E)   eukaryotic and unicellular.F) C) and E)
G) A) and B) A

Question 11

Protists can be heterotrophs.

Accepted Answer

A) True 
 B)False

Question 12

Why do scientists hypothesize that RNA was the first form of genetic material?

Accepted Answer

A)   RNA can use genetic information to make proteins.
B)   RNA can catalyze reactions.
C)   RNA can store genetic information.
D)   RNA can self-replicate.
E)   All answers are correct.F) A) and B)
G) A) and C)

Question 13

Cooperation between or among cells could have been a key step in the evolution of multicellularity.

Accepted Answer

A) True 
 B)False

Question 14

Most bacteria inside and on the human body cause disease.

Accepted Answer

A) True 
 B)False

Question 15

A lichen is made up of which two types of organisms?

Accepted Answer

A)   a fungus and a plant
B)   a plant and a cyanobacterium
C)   a fungus and an alga or cyanobacterium
D)   an alga and a bacterium
E)   an alga and a plantF) A) and B)
G) D) and E)

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

A prokaryote that occupies a habitat consisting of a low pH is a(n)

Accepted Answer

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

Question 18

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except

Accepted Answer

A)   oxygen.
B)   water.
C)   ammonia.
D)   methane.
E)   hydrogen.F) A) and D)
G) A) and E)

Question 19

Which of the following is true of prokaryotes?

Accepted Answer

A)   Prokaryotes have a nucleus.
B)   Prokaryotes are single-celled.
C)   Prokaryotes do not have a chromosome.
D)   Prokaryotes have membrane-bounded organelles.
E)   Prokaryotes do not have ribosomes.F) A) and C)
G) All of the above

Question 20

In prokayotes,the structure that assembles proteins by using information in RNA a(an)

Accepted Answer

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

Exam 15: Evolution and Diversity of Microbial Life

If you sample prokaryotes from a kitchen faucet,there are likely to be bacteria,not archaea.

Correct AnswerverifiedShow Answer

Molecular evidence places fungi closer to plants than animals.

Correct AnswerverifiedShow Answer

Euglena and dinoflagellates have chloroplasts and flagella.This means they have what characteristic(s) ?

Correct AnswerverifiedD

Chloroplasts arose by endosymbiosis of a(an)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The main storage carbohydrate in fungi is

Correct AnswerverifiedShow Answer

Microscopic reproductive cells produced by most fungi are

Correct AnswerverifiedShow Answer

RNA was the first molecule carrying genetic information.

Correct AnswerverifiedShow Answer

Antibiotics usually are not dangerous to humans when treating bacterial infections because most antibiotics exploit structures and functions in bacteria that are not present in host cells.

Correct AnswerverifiedTrue

The first life on Earth was

Correct AnswerverifiedA

Protists can be heterotrophs.

Correct AnswerverifiedShow Answer

Why do scientists hypothesize that RNA was the first form of genetic material?

Correct AnswerverifiedShow Answer

Cooperation between or among cells could have been a key step in the evolution of multicellularity.

Correct AnswerverifiedShow Answer

Most bacteria inside and on the human body cause disease.

Correct AnswerverifiedShow Answer

A lichen is made up of which two types of organisms?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A prokaryote that occupies a habitat consisting of a low pH is a(n)

Correct AnswerverifiedShow Answer

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except

Correct AnswerverifiedShow Answer

Which of the following is true of prokaryotes?

Correct AnswerverifiedShow Answer

In prokayotes,the structure that assembles proteins by using information in RNA a(an)

Correct AnswerverifiedShow Answer

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D

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True

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A

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