Question 1

The _______ include the water molds and mildews.

Accepted Answer

A)  parabasalids 
B)  apicomplexans 
C)  red algae 
D)  euglenids 
E)  oomycetes 
A)  parabasalids 
B)  apicomplexans 
C)  red algae 
D)  euglenids 
E)  oomycetes

Question 2

Plasmodium,the organism that causes malaria,is a(n)

Accepted Answer

A)  turbellarian. 
B)  mastigophoran. 
C)  dinoflagellate. 
D)  apicomplexan. 
E)  poriferan. 
A)  turbellarian. 
B)  mastigophoran. 
C)  dinoflagellate. 
D)  apicomplexan. 
E)  poriferan.

Question 3

If you put an autotrophic Euglena species in pond water and placed it in the dark,what would be the most likely outcome?

Accepted Answer

A)  It would produce an excess of photosynthetic pigment. 
B)  It would produce an excess of photosynthetic pigment and secrete excess sugar compounds. 
C)  It would die. 
D)  It would stop using its chloroplasts to synthesize organic compounds and begin feeding on organic material floating in the pond water. 
E)  Nothing would happen. 
A)  It would produce an excess of photosynthetic pigment. 
B)  It would produce an excess of photosynthetic pigment and secrete excess sugar compounds. 
C)  It would die. 
D)  It would stop using its chloroplasts to synthesize organic compounds and begin feeding on organic material floating in the pond water. 
E)  Nothing would happen.

Question 4

Which of the following is not a characteristic of the brown algae?

Accepted Answer

A)  Leaflike growths that can be up to 60 meters long 
B)  Storage of the products of photosynthesis as protein 
C)  A specialized holdfast that aids in attachment to a surface 
D)  The presence of the carotenoid fucoxanthin in their chloroplasts 
E)  Multicellularity 
A)  Leaflike growths that can be up to 60 meters long 
B)  Storage of the products of photosynthesis as protein 
C)  A specialized holdfast that aids in attachment to a surface 
D)  The presence of the carotenoid fucoxanthin in their chloroplasts 
E)  Multicellularity

Question 5

Ribosomal RNA (rRNA)genes are present in the

Accepted Answer

A)  mitochondria.b.a cytoskeleton.c.a nucleus.d.a cell wall.e.a flexible cell membrane. 
B)  mitochondrial genomes of eukaryotes. 
C)  chloroplast genomes of plants. 
D)  genomes of bacteria. 
E)  All of the above 
A)  mitochondria.b.a cytoskeleton.c.a nucleus.d.a cell wall.e.a flexible cell membrane. 
B)  mitochondrial genomes of eukaryotes. 
C)  chloroplast genomes of plants. 
D)  genomes of bacteria. 
E)  All of the above

Question 6

Which statement about protists is false?

Accepted Answer

A)  Protists are found only in aquatic habitats. 
B)  Protists have many different metabolic lifestyles. 
C)  Some protists use pseudopods or cilia to locomote. 
D)  Several groups of protists rid themselves of excess water by means of contractile vacuoles. 
E)  Some protists are parasitic. 
A)  Protists are found only in aquatic habitats. 
B)  Protists have many different metabolic lifestyles. 
C)  Some protists use pseudopods or cilia to locomote. 
D)  Several groups of protists rid themselves of excess water by means of contractile vacuoles. 
E)  Some protists are parasitic.

Question 7

Which statement about brown algae is true?

Accepted Answer

A)  They are specialized to withstand pounding by surf. 
B)  Their color results from a symbiotic relationship with dinoflagellates. 
C)  Their fossilized remains make a major contribution to limestone. 
D)  The fronds are stiffened with silica. 
E)  Their primary habitat is above the tidal zone on the seashore. 
A)  They are specialized to withstand pounding by surf. 
B)  Their color results from a symbiotic relationship with dinoflagellates. 
C)  Their fossilized remains make a major contribution to limestone. 
D)  The fronds are stiffened with silica. 
E)  Their primary habitat is above the tidal zone on the seashore.

Question 8

Which group includes species that form large toxic red tides in the ocean?

Accepted Answer

A)  Foraminiferans 
B)  Dinoflagellates 
C)  Kinetoplastids 
D)  Paramecium 
E)  Euglena 
A)  Foraminiferans 
B)  Dinoflagellates 
C)  Kinetoplastids 
D)  Paramecium 
E)  Euglena

Question 9

Which statement does not apply to diatoms?

Accepted Answer

A)  The cell walls are often impregnated with silica. 
B)  During mitosis,the top and bottom of the cell become the tops of the two new cells. 
C)  Protein is the main photosynthetic storage product. 
D)  Zygotes are formed by gametes that lack cell walls. 
E)  They can show bilateral or radial symmetry. 
A)  The cell walls are often impregnated with silica. 
B)  During mitosis,the top and bottom of the cell become the tops of the two new cells. 
C)  Protein is the main photosynthetic storage product. 
D)  Zygotes are formed by gametes that lack cell walls. 
E)  They can show bilateral or radial symmetry.

Question 10

Which structure is not associated with Paramecium?

Accepted Answer

A)  Digestive vacuole 
B)  Oral groove 
C)  Cilium 
D)  Pseudopod 
E)  Alveolus 
A)  Digestive vacuole 
B)  Oral groove 
C)  Cilium 
D)  Pseudopod 
E)  Alveolus

Question 11

Which event is not normally part of the life cycle of a plasmodial slime mold?

Accepted Answer

A)  Formation of a sclerotium when conditions are adverse 
B)  Active feeding by the plasmodium as it engulfs food particles 
C)  Meiosis to form spore-bearing structures 
D)  Fusion of swarm cells to form a diploid zygote 
E)  Development of spores into myxamoebas 
A)  Formation of a sclerotium when conditions are adverse 
B)  Active feeding by the plasmodium as it engulfs food particles 
C)  Meiosis to form spore-bearing structures 
D)  Fusion of swarm cells to form a diploid zygote 
E)  Development of spores into myxamoebas

Question 12

You are rowing a boat across a marine estuary at night and see flashes of light in the water.This is most likely a result of the action of

Accepted Answer

A)  dinoflagellates. 
B)  diatoms. 
C)  diplomonads. 
D)  cercozoans. 
E)  foraminiferans. 
A)  dinoflagellates. 
B)  diatoms. 
C)  diplomonads. 
D)  cercozoans. 
E)  foraminiferans.

Question 13

The ciliates

Accepted Answer

A)  move by means of long flagella. 
B)  use amoeboid movement. 
C)  include Plasmodium,the agent of malaria. 
D)  possess both a macronucleus and micronuclei. 
E)  are autotrophic. 
A)  move by means of long flagella. 
B)  use amoeboid movement. 
C)  include Plasmodium,the agent of malaria. 
D)  possess both a macronucleus and micronuclei. 
E)  are autotrophic.

Question 14

Which group is not a member of the ophisthokonts?

Accepted Answer

A)  Fungi 
B)  Brown algae 
C)  Mammals 
D)  Choanoflagellates 
E)  Fish 
A)  Fungi 
B)  Brown algae 
C)  Mammals 
D)  Choanoflagellates 
E)  Fish

Question 15

Which of the following represents a synapomorphy (shared derived trait)of the stramenopiles?

Accepted Answer

A)  The presence of peptidoglycan between membranes of an important organelle 
B)  A fully parasitic lifestyle 
C)  Air sacs below the cell membrane 
D)  Rows of tubular hairs on the longer of two unequally sized flagella 
E)  External shells of calcium carbonate 
A)  The presence of peptidoglycan between membranes of an important organelle 
B)  A fully parasitic lifestyle 
C)  Air sacs below the cell membrane 
D)  Rows of tubular hairs on the longer of two unequally sized flagella 
E)  External shells of calcium carbonate

Question 16

Dinoflagellates are common endosymbionts of

Accepted Answer

A)  corals. 
B)  fungi. 
C)  other dinoflagellates. 
D)  tertiary endosymbionts. 
E)  diatoms. 
A)  corals. 
B)  fungi. 
C)  other dinoflagellates. 
D)  tertiary endosymbionts. 
E)  diatoms.

Question 17

The three groups of rhizarians include cercozoans,foraminiferans,and

Accepted Answer

A)  kinetoplastids. 
B)  diplomonads. 
C)  stramenopiles. 
D)  loboseans. 
E)  radiolarians. 
A)  kinetoplastids. 
B)  diplomonads. 
C)  stramenopiles. 
D)  loboseans. 
E)  radiolarians.

Question 18

A key difference between plasmodial slime molds and cellular slime molds is that

Accepted Answer

A)  only cellular slime molds are motile. 
B)  they have different numbers of nuclei within each cell membrane. 
C)  only acellular slime molds ingest food by endocytosis. 
D)  only cellular slime molds ingest food by endocytosis. 
E)  acellular slime molds prefer cool,moist habitats,whereas cellular slime molds prefer dry,hot conditions. 
A)  only cellular slime molds are motile. 
B)  they have different numbers of nuclei within each cell membrane. 
C)  only acellular slime molds ingest food by endocytosis. 
D)  only cellular slime molds ingest food by endocytosis. 
E)  acellular slime molds prefer cool,moist habitats,whereas cellular slime molds prefer dry,hot conditions.

Question 19

Which group is least related (i.e. ,most distantly related)to the others?

Accepted Answer

A)  Paramecia 
B)  Apicomplexans 
C)  Dinoflagellates 
D)  Ciliates 
E)  Trypanosomes 
A)  Paramecia 
B)  Apicomplexans 
C)  Dinoflagellates 
D)  Ciliates 
E)  Trypanosomes

Question 20

The cellular slime molds belong to which group?

Accepted Answer

A)  Alveolates 
B)  Stramenophiles 
C)  Rhizaria 
D)  Excavates 
E)  Amoebozoans 
A)  Alveolates 
B)  Stramenophiles 
C)  Rhizaria 
D)  Excavates 
E)  Amoebozoans

Exam 20: The Origin and Diversification of Eukaryotes

The _______ include the water molds and mildews.

Plasmodium,the organism that causes malaria,is a(n)

If you put an autotrophic Euglena species in pond water and placed it in the dark,what would be the most likely outcome?

Which of the following is not a characteristic of the brown algae?

Ribosomal RNA (rRNA)genes are present in the

Which statement about protists is false?

Which statement about brown algae is true?

Which group includes species that form large toxic red tides in the ocean?

Which statement does not apply to diatoms?

Which structure is not associated with Paramecium?

Which event is not normally part of the life cycle of a plasmodial slime mold?

You are rowing a boat across a marine estuary at night and see flashes of light in the water.This is most likely a result of the action of

The ciliates

Which group is not a member of the ophisthokonts?

Which of the following represents a synapomorphy (shared derived trait)of the stramenopiles?

Dinoflagellates are common endosymbionts of

The three groups of rhizarians include cercozoans,foraminiferans,and

A key difference between plasmodial slime molds and cellular slime molds is that

Which group is least related (i.e. ,most distantly related)to the others?

The cellular slime molds belong to which group?

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cells: the Working Units of Life

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Reproduction of Flowering Plants

Plants in the Environment

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Reproduction

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological and Evolutionary Consequences of Interactions Within and Among Species

Ecological Communities

The Global Ecosystem

Filters