Question 1

If a friend at the next lab bench was working on an unknown fungus and shouted "I've found zygospores," you would tell your friend that the fungus was probably a member of the

Accepted Answer

A)  chytridiomycotA.
B)  ascomycota.
C)  zygomycota.
D)  basidiomycota.
E)  glomeromycota.F) B) and C)
G) D) and E)

Question 2

The first multicellular organisms probably arose about

Accepted Answer

A)  1.2 billion years ago.
B)  500 million years ago.
C)  two billion years ago.
D)  3.5 billion years ago.
E)  six billion years ago.F) None of the above
G) B) and D)

Question 3

The Irish potato famine in the mid-1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

Accepted Answer

A)  a water mold
B)  a red alga
C)  a dinoflagellate
D)  a protozoan
E)  a fungusF) C) and D)
G) A) and B)

Question 4

Euglena and dinoflagellates have chloroplasts and flagella.This means they are which feature?

Accepted Answer

A)  photosynthetic only
B)  mobile only
C)  multicellular only
D)  both photosynthetic and mobile
E)  both multicellular and mobileF) A) and E)
G) All of the above D

Question 5

How is the ability of phospholipids to spontaneously form membranes when placed in water important in the origin of life on Earth?

Accepted Answer

A)  Membranes are used by cells to catalyze reactions.
B)  Membranes are used by cells to store genetic information.
C)  Membranes protect a cell from high temperatures and pressures in the environment.
D)  Membranes are used by cells to isolate their contents from the environment.
E)  Membranes protect a cell from gases in the atmosphereF) C) and D)
G) A) and C)

Question 6

In the ecosystems of the world,fungi act primarily as

Accepted Answer

A)  decomposers.
B)  autotrophs.
C)  primary consumers.
D)  secondary consumers.
E)  photosynthesizers.F) C) and D)
G) All of the above

Question 7

Antibiotics usually are not dangerous to use in 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

Question 8

Multicellular organisms generally consist of a large number of identical cells.

Accepted Answer

A) True 
 B)False

Question 9

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 10

The protists,though now known to have multiple origins,were first group due to their being aquatic,and,most of them,quite small.

Accepted Answer

A) True 
 B)False

Question 11

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

Question 12

The main storage carbohydrate in fungi is

Accepted Answer

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

Question 13

Saccharomyces is commonly known as

Accepted Answer

A)  an antibiotic.
B)  the "death angel."
C)  mildew.
D)  yeast for making bread,wine,and beer.
E)  the common bread mold.F) A) and E)
G) None of the above D

Question 14

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.In areas of the world where malaria is endemic,people have a relatively high incidence of the allele for

Accepted Answer

A)  sickle cell.
B)  blue eyes.
C)  cystic fibrosis.
D)  mental retardation.
E)  hemophilia.F) None of the above
G) C) and D)

Question 15

Most bacteria inside and on the human body cause disease.

Accepted Answer

A) True 
 B)False

Question 16

Yeasts are

Accepted Answer

A)  multicelled autotrophs.
B)  single-celled heterotrophs.
C)  single-celled autotrophs.
D)  multicelled heterotrophs.
E)  All answers are correct.F) D) and E)
G) C) and D)

Question 17

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) D) and E)
G) C) and E)

Question 18

The structure that assembles proteins in the prokaryote is the

Accepted Answer

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

Question 19

All protists

Accepted Answer

A)  are prokaryotes.
B)  lack a nucleus.
C)  lack membrane-bounded organelles.
D)  are eukaryotes.
E)  are multicellular.F) C) and E)
G) None of the above

Question 20

How did the first life on Earth obtain energy?

Accepted Answer

A)  photosynthesis in the presence of oxygen
B)  photosynthesis in the absence of oxygen
C)  heterotrophic consumption of organic molecules
D)  autotrophic consumption of organic molecules
E)  phototrophic consumption of inorganic moleculesF) D) and E)
G) B) and C)

Exam 15: Evolution and Diversity of Microbial Life

If a friend at the next lab bench was working on an unknown fungus and shouted "I've found zygospores," you would tell your friend that the fungus was probably a member of the

Correct Answer
verified

The first multicellular organisms probably arose about

Correct Answer
verified

The Irish potato famine in the mid-1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

Correct Answer
verified

Euglena and dinoflagellates have chloroplasts and flagella.This means they are which feature?

Correct Answer
verified
D

How is the ability of phospholipids to spontaneously form membranes when placed in water important in the origin of life on Earth?

Correct Answer
verified

In the ecosystems of the world,fungi act primarily as

Correct Answer
verified

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

Correct Answer
verified

Multicellular organisms generally consist of a large number of identical cells.

Correct Answer
verified

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 Answer
verified

The protists,though now known to have multiple origins,were first group due to their being aquatic,and,most of them,quite small.

Correct Answer
verified

The primary component making up the cell walls of bacteria is

Correct Answer
verified

The main storage carbohydrate in fungi is

Correct Answer
verified
A

Saccharomyces is commonly known as

Correct Answer
verified
D

Correct Answer
verified

Most bacteria inside and on the human body cause disease.

Correct Answer
verified

Yeasts are

Correct Answer
verified

The first life on Earth was

Correct Answer
verified

The structure that assembles proteins in the prokaryote is the

Correct Answer
verified

All protists

Correct Answer
verified

How did the first life on Earth obtain energy?

Correct Answer
verified

Exam 15: Evolution and Diversity of Microbial Life

If a friend at the next lab bench was working on an unknown fungus and shouted "I've found zygospores," you would tell your friend that the fungus was probably a member of the

Correct AnswerverifiedShow Answer

The first multicellular organisms probably arose about

Correct AnswerverifiedShow Answer

The Irish potato famine in the mid-1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

Correct AnswerverifiedShow Answer

Euglena and dinoflagellates have chloroplasts and flagella.This means they are which feature?

Correct AnswerverifiedD

How is the ability of phospholipids to spontaneously form membranes when placed in water important in the origin of life on Earth?

Correct AnswerverifiedShow Answer

In the ecosystems of the world,fungi act primarily as

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Multicellular organisms generally consist of a large number of identical cells.

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

The protists,though now known to have multiple origins,were first group due to their being aquatic,and,most of them,quite small.

Correct AnswerverifiedShow Answer

The primary component making up the cell walls of bacteria is

Correct AnswerverifiedShow Answer

The main storage carbohydrate in fungi is

Correct AnswerverifiedA

Saccharomyces is commonly known as

Correct AnswerverifiedD

Correct AnswerverifiedShow Answer

Most bacteria inside and on the human body cause disease.

Correct AnswerverifiedShow Answer

Yeasts are

Correct AnswerverifiedShow Answer

The first life on Earth was

Correct AnswerverifiedShow Answer

The structure that assembles proteins in the prokaryote is the

Correct AnswerverifiedShow Answer

All protists

Correct AnswerverifiedShow Answer

How did the first life on Earth obtain energy?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified