Question 1

Intestinal gas is evidence of active _ in one's digestive tract.

Accepted Answer

A)  halophiles
B)  thermophiles
C)  yeast cultures
D)  methanogensE) A) and C)
F) B) and D)

Question 2

Which of the following organisms first introduced oxygen into Earth's atmosphere?

Accepted Answer

A)  green algae
B)  cyanobacteria
C)  early protozoans
D)  plantsE) B) and D)
F) A) and B)

Question 3

Barry Marshall and his collaborators showed that

Accepted Answer

A)  Helicobacter pylori bacteria are protective against peptic ulcers.
B)  Helicobacter pylori bacteria cause chronic gastritis and stomach ulcers.
C)  lab animals are easily infected by Helicobacter pylori.
D)  lifestyle factors such as stress,diet,and smoking cause chronic gastritis and stomach ulcers.E) B) and D)
F) A) and D)

Question 4

Plasmodial slime molds

Accepted Answer

A)  are photoautotrophic.
B)  are primitive fungi.
C)  contain many nuclei in one mass of cytoplasm.
D)  are marine decomposers.E) All of the above
F) C) and D)

Question 5

The largest group of prokaryotes is the ,which obtain both energy and carbon from .

Accepted Answer

A)  photoautotrophs ...light
B)  chemoheterotrophs ...organic molecules
C)  chemoautotrophs ...decaying organic material
D)  autotrophs ...inorganic moleculesE) A) and B)
F) A) and C)

Question 6

A bacterium living in an underground septic tank thrives by absorbing organic compounds from decomposing wastes.What is it?

Accepted Answer

A)  a chemoautotroph
B)  a photoheterotroph
C)  a chemoheterotroph
D)  a photoautotrophE) B) and C)
F) C) and D)

Question 7

Chemoautotrophic bacteria obtain their carbon from and their energy from .

Accepted Answer

A)  CO2 ...sunlight
B)  CO2 ...reactions involving inorganic chemicals
C)  organic molecules ...sunlight
D)  methane ...sunlightE) A) and B)
F) A) and C)

Question 8

The main ingredient of oil is

Accepted Answer

A)  algae
B)  diatoms
C)  bacteria
D)  dinoflagellatesE) None of the above
F) A) and B)

Question 9

Which of the following options correctly pairs a structure with its function in prokaryote cells?

Accepted Answer

A)  endospore = food digestion vacuole
B)  capsule = rigid protective structure enclosing cell
C)  flagella = feeding appendages
D)  fimbriae = help prokaryotes stick to each other and to surfacesE) None of the above
F) C) and D)

Question 10

are chromalveolates that commonly are found decomposing dead animals in freshwater habitats.

Accepted Answer

A)  Plasmodial slime molds
B)  Water molds
C)  Cellular slime molds
D)  Brown algaeE) A) and C)
F) None of the above

Exam 16: Microbial Life: Prokaryotes and Protists

The main ingredient of oil is

Correct Answer
verified

Plasmodial slime molds

Correct Answer
verified

A bacterium living in an underground septic tank thrives by absorbing organic compounds from decomposing wastes.What is it?

Correct Answer
verified

Which of the following options correctly pairs a structure with its function in prokaryote cells?

Correct Answer
verified

Barry Marshall and his collaborators showed that

Correct Answer
verified

Chemoautotrophic bacteria obtain their carbon from and their energy from .

Correct Answer
verified

Intestinal gas is evidence of active _ in one's digestive tract.

Correct Answer
verified

Which of the following organisms first introduced oxygen into Earth's atmosphere?

Correct Answer
verified

are chromalveolates that commonly are found decomposing dead animals in freshwater habitats.

Correct Answer
verified

The largest group of prokaryotes is the ,which obtain both energy and carbon from .

Correct Answer
verified

Exam 16: Microbial Life: Prokaryotes and Protists

The main ingredient of oil is

Correct AnswerverifiedShow Answer

Plasmodial slime molds

Correct AnswerverifiedShow Answer

A bacterium living in an underground septic tank thrives by absorbing organic compounds from decomposing wastes.What is it?

Correct AnswerverifiedShow Answer

Which of the following options correctly pairs a structure with its function in prokaryote cells?

Correct AnswerverifiedShow Answer

Barry Marshall and his collaborators showed that

Correct AnswerverifiedShow Answer

Chemoautotrophic bacteria obtain their carbon from and their energy from .

Correct AnswerverifiedShow Answer

Intestinal gas is evidence of active _ in one's digestive tract.

Correct AnswerverifiedShow Answer

Which of the following organisms first introduced oxygen into Earth's atmosphere?

Correct AnswerverifiedShow Answer

are chromalveolates that commonly are found decomposing dead animals in freshwater habitats.

Correct AnswerverifiedShow Answer

The largest group of prokaryotes is the ,which obtain both energy and carbon from .

Correct AnswerverifiedShow Answer

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