Question 1

Vacuoles for ingesting food and regulating their water balance are characteristic of

Accepted Answer

A)  sporozoans.
B)  trypanosomes.
C)  ciliates.
D)  algae.
E)  spirochetes.F) None of the above
G) A) and E)

Question 2

How do protists provide evidence for the step-wise evolution of mitosis?

Accepted Answer

A)  In some protists the nuclear membrane fails to break down during mitosis.
B)  Protists use conjugation instead of mitosis.
C)  Only meiosis occurs in protists.
D)  Mitosis has not been observed in any protist species.E) B) and D)
F) B) and C)

Question 3

The tropical diseases such as African sleeping sickness,Chagas disease,and leishmaniasis are caused by

Accepted Answer

A)  foraminifera.
B)  sporozoans.
C)  phytomastigotes.
D)  trypanosomes.
E)  oomycetes.F) A) and E)
G) A) and B) D

Question 4

The most diverse of the four eukaryotic kingdoms is the

Accepted Answer

A)  Protista Kingdom.
B)  Bacteria Kingdom.
C)  Plantae Kingdom.
D)  Animalia Kingdom.E) B) and C)
F) A) and B)

Question 5

Which one of the following statements about the trypanosome causing African sleeping sickness does not explain why the disease has been difficult to control?

Accepted Answer

A)  Trypanosomes have a protective glycoprotein coat.
B)  Trypanosomes have many variable antigen genes.
C)  Rearrangement of antigen genes takes place during the asexual cycle.
D)  By infesting the red blood cells,trypanosomes can "hide" from the immune system.
E)  Only one gene determining the antigenic nature of the glycoprotein coat is expressed at a time.F) A) and B)
G) A) and C)

Question 6

Trypanosomiasis is spread by

Accepted Answer

A)  mosquitoes.
B)  airborne droplets.
C)  tsetse flies.
D)  fleas on rats.
E)  contaminated water.F) C) and E)
G) A) and B)

Question 7

A common characteristic of Choanoflagellida is

Accepted Answer

A)  a single,unique mitochondria.
B)  space beneath the plasma membrane.
C)  silica covering.
D)  funnel-shaped,contractile collar.
E)  presence of a plasmodium.F) A) and B)
G) D) and E)

Question 8

What would be strong evidence to suggest a protist is phototrophic?

Accepted Answer

A)  Many lysosomes
B)  Locomotion via several flagella
C)  The presence of chloroplasts
D)  Silicon dioxide cell walls
E)  A benthic lifestyleF) A) and D)
G) B) and E)

Question 9

Conjugation in most ciliates involves a series of steps that leads to increased genetic diversity.Which one of the following choices is not one of those steps?

Accepted Answer

A)  mitosis of a haploid nucleus
B)  mitosis of a diploid nucleus
C)  meiosis of a haploid nucleus
D)  meiosis of a diploid nucleus
E)  sexual reproductionF) B) and E)
G) A) and B)

Question 10

Protist locomotion is accomplished by the contraction of muscle fibers.

Accepted Answer

A) True 
 B)False

Question 11

Some protist cell surfaces have ________,including silica or calcium carbonate.

Accepted Answer

ECM (extracellular material)

Question 12

The members of ________ include dinoflagellates,apicomplexans,and ciliates.

Accepted Answer

The answer of The members of ________ include dinoflagellates,apicomplexans,and ciliates....

Question 13

Members of the Euglenozoa move within their habitats with the aid of

Accepted Answer

A)  tests.
B)  pseudopodia.
C)  cilia.
D)  flagella.
E)  pellicles.F) B) and C)
G) B) and D)

Question 14

The ________ are a group within the Euglenozoa that have a unique,single mitochondrion.

Accepted Answer

The answer of The ________ are a group within the...

Question 15

What would be strong evidence to suggest a protist is phagotrophic?

Accepted Answer

A)  An abundance of lysosomes
B)  Locomotion using polar flagella
C)  Silicon dioxide cell walls
D)  Benthic lifestyle
E)  Presence of chloroplastsF) A) and B)
G) C) and E)

Question 16

The common characteristic of Alveolata is

Accepted Answer

A)  a single,unique mitochondria.
B)  a layer of flattened vesicles beneath the plasma membrane.
C)  silica covering.
D)  funnel-shaped,contractile collar.
E)  presence of a plasmodium.F) C) and E)
G) None of the above

Question 17

Which of the following statements would not be consistent with the theory for the endosymbiotic origin of mitochondria and chloroplasts?

Accepted Answer

A)  Mitochondria and chloroplasts have their own DNA enclosed within a nuclear envelope.
B)  The composition of the outer membrane of chloroplasts and mitochondria is similar to the plasma membrane of eukaryotic cells.
C)  The composition of the inner membrane of chloroplasts and mitochondria is similar to the plasma membrane of prokaryotic cells.
D)  Mitochondria and chloroplasts have some enzymes unique to them.
E)  Genes encoded within mitochondria and chloroplasts indicate a closer relationship to prokaryotes than do most nuclear genes.F) B) and E)
G) A) and C)

Question 18

Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells.These cells have a central flagellum surrounded by a collar of microvilli.The collar filters organic matter out of the water column.Which protist shares a more recent common ancestor with the poriferans?

Accepted Answer

A)  Ciliates
B)  Rhodophyta
C)  Choanoflagellates
D)  Radiolarians
E)  MyxomycotaF) All of the above
G) A) and D)

Question 19

Organisms that are characterized by being unicellular,photosynthetic,and having double shells made of silica are known as

Accepted Answer

A)  dinoflagellates.
B)  diatoms.
C)  kelps.
D)  euglenoids.
E)  foraminifera.F) A) and E)
G) C) and D) B

Question 20

In addition to the true amoebas (Rhizopoda) ,another group with pseudopods are the

Accepted Answer

A)  Euglenozoa.
B)  Stramenopila.
C)  Radiolarians.
D)  Diplomonads.
E)  Alveolata.F) B) and E)
G) B) and C)

Exam 28: Protists

Vacuoles for ingesting food and regulating their water balance are characteristic of

Correct AnswerverifiedShow Answer

How do protists provide evidence for the step-wise evolution of mitosis?

Correct AnswerverifiedShow Answer

The tropical diseases such as African sleeping sickness,Chagas disease,and leishmaniasis are caused by

Correct AnswerverifiedD

The most diverse of the four eukaryotic kingdoms is the

Correct AnswerverifiedShow Answer

Which one of the following statements about the trypanosome causing African sleeping sickness does not explain why the disease has been difficult to control?

Correct AnswerverifiedShow Answer

Trypanosomiasis is spread by

Correct AnswerverifiedShow Answer

A common characteristic of Choanoflagellida is

Correct AnswerverifiedShow Answer

What would be strong evidence to suggest a protist is phototrophic?

Correct AnswerverifiedShow Answer

Conjugation in most ciliates involves a series of steps that leads to increased genetic diversity.Which one of the following choices is not one of those steps?

Correct AnswerverifiedShow Answer

Protist locomotion is accomplished by the contraction of muscle fibers.

Correct AnswerverifiedShow Answer

Some protist cell surfaces have ________,including silica or calcium carbonate.

Correct AnswerverifiedECM (extracellular material)

The members of ________ include dinoflagellates,apicomplexans,and ciliates.

Correct AnswerverifiedShow Answer

Members of the Euglenozoa move within their habitats with the aid of

Correct AnswerverifiedShow Answer

The ________ are a group within the Euglenozoa that have a unique,single mitochondrion.

Correct AnswerverifiedShow Answer

What would be strong evidence to suggest a protist is phagotrophic?

Correct AnswerverifiedShow Answer

The common characteristic of Alveolata is

Correct AnswerverifiedShow Answer

Which of the following statements would not be consistent with the theory for the endosymbiotic origin of mitochondria and chloroplasts?

Correct AnswerverifiedShow Answer

Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells.These cells have a central flagellum surrounded by a collar of microvilli.The collar filters organic matter out of the water column.Which protist shares a more recent common ancestor with the poriferans?

Correct AnswerverifiedShow Answer

Organisms that are characterized by being unicellular,photosynthetic,and having double shells made of silica are known as

Correct AnswerverifiedB

In addition to the true amoebas (Rhizopoda) ,another group with pseudopods are the

Correct AnswerverifiedShow Answer

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D

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ECM (extracellular material)

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B

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