Question 1

In addition to their characteristic cilia,most ciliates contain two types of

Accepted Answer

A)  nuclei.
B)  chloroplasts.
C)  flagella.
D)  wood-digesting enzymes.
E)  cysts.F) D) and E)
G) A) and B)

Question 2

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

Accepted Answer

ECM (extra...

Question 3

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 chloroplast indicate a closer relationship to prokaryotes than do most nuclear genes.F) A) and D)
G) None of the above

Question 4

The limestone making up the famous landmark in England,the White Cliffs of Dover,are the pore-studded shells (tests) of

Accepted Answer

A)  diatoms.
B)  dinoflagellates.
C)  brown algae.
D)  spirochetes.
E)  foraminifera.F) C) and D)
G) All of the above

Question 5

Some photosynthetic euglenoids can also ingest dissolved or particulate food.Which one of the following terms would best describe such a protist?

Accepted Answer

A)  autotrophic
B)  heterotrophic
C)  mixotrophic
D)  osmotrophic
E)  phagotrophicF) C) and E)
G) A) and E)

Question 6

Protists are classified into a single kingdom because of which of the following features?

Accepted Answer

A)  They are eukaryotes,but not fungi,plants,or animals.
B)  They are microscopic.
C)  They are unicellular.
D)  All types of nutritional modes are founD.
E)  They are monophyletic.F) B) and D)
G) B) and C)

Question 7

Which one of the following groups is not considered monophyletic?

Accepted Answer

A)  Euglenozoa
B)  amoebas
C)  Alveolata
D)  Rhodophyta
E)  StramenopilaF) B) and E)
G) B) and C)

Question 8

Choose the letter of the best match from the following:
-Exist as single cells that aggregate,migrate as a slug,and work together as a unit;encysted amoebas secrete a cellulose wall and make spores.

Accepted Answer

A)  oomycetes
B)  cellular slime molds
C)  brown algae
D)  Euglenozoa
E)  PlasmodiumF) None of the above
G) C) and D)

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) C) and D)
G) B) and C)

Question 10

Amoebas lack

Accepted Answer

A)  cell walls.
B)  flagella.
C)  nuclei.
D)  meiosis.
E)  any form of sexuality.F) A) and D)
G) C) and E)

Question 11

The life cycle of the brown alga Laminaria shares several features with the life cycle of most plants.Which one of the following is not shared?

Accepted Answer

A)  meiosis
B)  multicellular haploid stage
C)  multicellular diploid stage
D)  gametes produced by mitosis
E)  spores produced by mitosisF) None of the above
G) A) and B)

Question 12

Choose the letter of the best match from the following:
-Multicellular,marine protists,some reaching 100 meters in length;known as seaweeds.

Accepted Answer

A)  oomycetes
B)  cellular slime molds
C)  brown algae
D)  Euglenozoa
E)  PlasmodiumF) B) and D)
G) B) and C)

Question 13

The _________ are a group characterized by pore-studded shells (called tests)composed of organic materials usually reinforced by grains of inorganic matter.

Accepted Answer

forams/for...

Question 14

The plasmodial and cellular slime molds differ in a number of features.Select the following choice that is not a difference.

Accepted Answer

A)  aggregation of individuals when conditions worsen
B)  ability to form spore-producing structures
C)  ability to form an acellular plasmodium
D)  ability to form individual amoebas
E)  synchronization of mitosisF) B) and C)
G) All of the above

Question 15

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) None of the above
G) C) and D)

Question 16

The individual cellular slime molds behave as separate amoebas while feeding.They aggregate and become a moving mass,the slug,which produces the spore containing ________ at a certain stage of life.

Accepted Answer

The answer of The individual cellular slime molds behave as...

Question 17

Oomycetes are characterized by all of the following except they

Accepted Answer

A)  produce zoospores asexually.
B)  are able to reproduce sexually.
C)  contain motile spores.
D)  contain two unequal flagella.
E)  were once considered fungi.F) B) and D)
G) B) and C)

Question 18

Some protists use multiple fission (cell division preceded by several nuclear divisions) as a means of reproduction.Multiple fission is also referred to as

Accepted Answer

A)  budding.
B)  zygotic meiosis.
C)  schizogony.
D)  syngamy.
E)  intermediary meiosis.F) A) and C)
G) B) and C)

Question 19

Which one of the following statements about diplomonads and parabasilids is false?

Accepted Answer

A)  Absence of mitochondria in these groups is an ancestral trait.
B)  Some members are parasitic,but some also engage in mutualism.
C)  Both groups are in different clades.
D)  Both groups are flagellated protists.
E)  Both groups likely had early eukaryotic ancestors.F) A) and C)
G) A) and B)

Question 20

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) B) and E)
G) A) and B)

Exam 29: Protists

Oomycetes are characterized by all of the following except they

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?

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Which one of the following statements about diplomonads and parabasilids is false?

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Choose the letter of the best match from the following: -Exist as single cells that aggregate,migrate as a slug,and work together as a unit;encysted amoebas secrete a cellulose wall and make spores.

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

Which one of the following groups is not considered monophyletic?

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The limestone making up the famous landmark in England,the White Cliffs of Dover,are the pore-studded shells (tests) of

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Multicellular,marine protists,some reaching 100 meters in length;known as seaweeds.

Correct AnswerverifiedShow Answer

Some protists use multiple fission (cell division preceded by several nuclear divisions) as a means of reproduction.Multiple fission is also referred to as

Correct AnswerverifiedShow Answer

The life cycle of the brown alga Laminaria shares several features with the life cycle of most plants.Which one of the following is not shared?

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The plasmodial and cellular slime molds differ in a number of features.Select the following choice that is not a difference.

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

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The _________ are a group characterized by pore-studded shells (called tests)composed of organic materials usually reinforced by grains of inorganic matter.

Correct Answerverifiedforams/for...View AnswerShow Answer

Protists are classified into a single kingdom because of which of the following features?

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The individual cellular slime molds behave as separate amoebas while feeding.They aggregate and become a moving mass,the slug,which produces the spore containing ________ at a certain stage of life.

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The common characteristic of Alveolata is

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

Correct AnswerverifiedECM (extra...View AnswerShow Answer

In addition to their characteristic cilia,most ciliates contain two types of

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Some photosynthetic euglenoids can also ingest dissolved or particulate food.Which one of the following terms would best describe such a protist?

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Amoebas lack

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forams/for...
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ECM (extra...
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