Question 1

What did Stanley Miller's simulation of Earth's early conditions produce?

Accepted Answer

A)  living cells
B)  amino acids
C)  plants
D)  DNA molecules
E)  RNA moleculesF) C) and D)
G) A) and B)

Question 2

Dictyostelium discoideum straddles the boundary between unicellular and multicellular.Its feeding phase consists of individual amoeba-like cells that move independently,feeding on bacteria.When the food runs out,cells begin to aggregate into a multicelled structure.The cells differentiate into a base,stalk,and spores;only the spores survive to colonize a new habitat.Dictyostelium discoideum is which of the following?

Accepted Answer

A)  a protozoan
B)  an apicomplexan
C)  an alga
D)  a diatom
E)  a slime moldF) A) and B)
G) A) and C)

Question 3

The three most common shapes of bacteria are

Accepted Answer

A)  spirillum,endospore,and peptidoglycan.
B)  bacillus,spirillum,and coccus.
C)  cubical,spiral,and thread-like.
D)  spirillum,nucleiod,and peptidoglycan.
E)  cubical,spherical,and rod-shaped.F) C) and D)
G) A) and E)

Question 4

In fungi,a mass of aggregated hyphae is called a(n)

Accepted Answer

A)  mycelium.
B)  pilus.
C)  gill.
D)  spore.
E)  ascus.F) None of the above
G) C) and D)

Question 5

A dinoflagellate has two flagella.

Accepted Answer

A) True 
 B)False

Question 6

Photosynthesis probably originated during the __________ eon and most likely used _____________ as an electron donor.

Accepted Answer

A)  Proterozoic,water
B)  Archean,water
C)  Archean,hydrogen sulfide
D)  Proterozoic,hydrogen sulfide
E)  Paleozoic,waterF) All of the above
G) A) and C)

Question 7

Dictyostelium discoideum straddles the boundary between unicellular and multicellular.Its feeding phase consists of individual amoeba-like cells that move independently,feeding on bacteria.When the food runs out,cells begin to aggregate into a multicelled structure.The cells differentiate into a base,stalk,and spores;only the spores survive to colonize a new habitat.What is the advantage of forming spores?

Accepted Answer

A)  The spores will eat the other cells.
B)  The spores are photosynthetic.
C)  Spores are smaller and can be transported to new habitats.
D)  Spores can mate with other species.
E)  Spores have flagella and can swim to new habitats.F) B) and C)
G) D) and E)

Question 8

Which protists produce much of the Earth's oxygen?

Accepted Answer

A)  amoeba
B)  slime molds
C)  algae
D)  protozoa
E)  radiolariansF) A) and C)
G) D) and E)

Question 9

All protists are single-celled.

Accepted Answer

A) True 
 B)False

Question 10

A mushroom is a dikaryotic structure of Basidiomycota.

Accepted Answer

A) True 
 B)False

Question 11

Fungi that do not reproduce sexually and have large asexual spores are

Accepted Answer

A)  glomeromycotA.
B)  basidiomycota.
C)  ascomycota.
D)  zygomycota.
E)  chytridiomycota.F) A) and E)
G) A) and D)

Question 12

After a haploid spore germinates,it then completes mitosis,forming hyphae.The resulting hyphae are

Accepted Answer

A)  diploid.
B)  dikaryotic.
C)  zygotes.
D)  gametes.
E)  haploid.F) All of the above
G) A) and E)

Question 13

Where in a diatom would you find its yellowish photosynthetic pigment?

Accepted Answer

A)  in the plasma membrane
B)  in the cytoplasm
C)  in the cell wall
D)  in the nucleus
E)  in chloroplastsF) C) and D)
G) A) and D)

Question 14

The structure that aids in locomotion of some bacteria is a

Accepted Answer

A)  pilus.
B)  flagellum.
C)  cell wall.
D)  cilium.
E)  All answers are correct.F) C) and D)
G) A) and B)

Question 15

Protists can be heterotrophs.

Accepted Answer

A) True 
 B)False

Question 16

Eukaryotes probably originated about

Accepted Answer

A)  four billion years ago.
B)  two billion years ago.
C)  four million years ago.
D)  three billion years ago.
E)  three million years ago.F) A) and C)
G) A) and B)

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

Exam 15: Evolution and Diversity of Microbial Life

Protists can be heterotrophs.

Correct Answer
verified

The structure that aids in locomotion of some bacteria is a

Correct Answer
verified

Correct Answer
verified

After a haploid spore germinates,it then completes mitosis,forming hyphae.The resulting hyphae are

Correct Answer
verified

A dinoflagellate has two flagella.

Correct Answer
verified

Fungi that do not reproduce sexually and have large asexual spores are

Correct Answer
verified

Eukaryotes probably originated about

Correct Answer
verified

The three most common shapes of bacteria are

Correct Answer
verified

All protists are single-celled.

Correct Answer
verified

What did Stanley Miller's simulation of Earth's early conditions produce?

Correct Answer
verified

The first life on Earth was

Correct Answer
verified

A mushroom is a dikaryotic structure of Basidiomycota.

Correct Answer
verified

In fungi,a mass of aggregated hyphae is called a(n)

Correct Answer
verified

Which protists produce much of the Earth's oxygen?

Correct Answer
verified

Photosynthesis probably originated during the eon and most likely used ___ as an electron donor.

Correct Answer
verified

Correct Answer
verified

Where in a diatom would you find its yellowish photosynthetic pigment?

Correct Answer
verified

Exam 15: Evolution and Diversity of Microbial Life

Protists can be heterotrophs.

Correct AnswerverifiedShow Answer

The structure that aids in locomotion of some bacteria is a

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

After a haploid spore germinates,it then completes mitosis,forming hyphae.The resulting hyphae are

Correct AnswerverifiedShow Answer

A dinoflagellate has two flagella.

Correct AnswerverifiedShow Answer

Fungi that do not reproduce sexually and have large asexual spores are

Correct AnswerverifiedShow Answer

Eukaryotes probably originated about

Correct AnswerverifiedShow Answer

The three most common shapes of bacteria are

Correct AnswerverifiedShow Answer

All protists are single-celled.

Correct AnswerverifiedShow Answer

What did Stanley Miller's simulation of Earth's early conditions produce?

Correct AnswerverifiedShow Answer

The first life on Earth was

Correct AnswerverifiedShow Answer

A mushroom is a dikaryotic structure of Basidiomycota.

Correct AnswerverifiedShow Answer

In fungi,a mass of aggregated hyphae is called a(n)

Correct AnswerverifiedShow Answer

Which protists produce much of the Earth's oxygen?

Correct AnswerverifiedShow Answer

Photosynthesis probably originated during the __________ eon and most likely used _____________ as an electron donor.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Where in a diatom would you find its yellowish photosynthetic pigment?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Photosynthesis probably originated during the eon and most likely used ___ as an electron donor.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified