Question 1

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. 
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.

Question 2

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. 
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.

Question 3

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

Accepted Answer

ECM (extra

Question 4

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. 
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.

Question 5

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) Plasmodium 
A) oomycetes 
B) cellular slime molds 
C) brown algae 
D) Euglenozoa 
E) Plasmodium

Question 6

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 7

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. 
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.

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) Plasmodium 
A) oomycetes 
B) cellular slime molds 
C) brown algae 
D) Euglenozoa 
E) Plasmodium

Question 9

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) phagotrophic 
A) autotrophic 
B) heterotrophic 
C) mixotrophic 
D) osmotrophic 
E) phagotrophic

Question 10

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 reproduction 
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 reproduction

Question 11

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. 
A) diatoms. 
B) dinoflagellates. 
C) brown algae. 
D) spirochetes. 
E) foraminifera.

Question 12

Which one of the following groups is not considered monophyletic?

Accepted Answer

A) Euglenozoa 
B) amoebas 
C) Alveolata 
D) Rhodophyta 
E) Stramenopila 
A) Euglenozoa 
B) amoebas 
C) Alveolata 
D) Rhodophyta 
E) Stramenopila

Question 13

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. 
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.

Question 14

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 mitosis 
A) meiosis 
B) multicellular haploid stage 
C) multicellular diploid stage 
D) gametes produced by mitosis 
E) spores produced by mitosis

Question 15

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 mitosis 
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 mitosis

Question 16

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

Question 17

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

Question 18

Amoebas lack

Accepted Answer

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

Question 19

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 20

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

Exam 29: Protists

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

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

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

The common characteristic of Alveolata is

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

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

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

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.

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

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?

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

Which one of the following groups is not considered monophyletic?

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

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?

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

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

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

Amoebas lack

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.

Oomycetes are characterized by all of the following except they

The Science of Biology

The Nature of Molecules

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes Mapping and the Meiosis - Inheritance Connection

Dna: the Genetic Material

Genes and How They Work

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The Evidence for Evolution

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Systematics and the Phylogenetic Revolution

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