Question 1

_______ have created vast limestone deposits throughout the world.

Accepted Answer

A)  Radiolarians 
B)  Dinoflagellates 
C)  Foraminiferans 
D)  Heliozoans 
E)  None of the above 
A)  Radiolarians 
B)  Dinoflagellates 
C)  Foraminiferans 
D)  Heliozoans 
E)  None of the above

Question 2

The figure below details an experiment to determine if Paramecia digest food in an acidic environment. What can you hypothesize about why the vacuole color returns to red?

Accepted Answer

A)  The pH returns to a basic environment due to increasing proton concentration. 
B)  The pH returns to a basic environment due to a decreasing proton concentration. 
C)  The dye from all food vacuoles coalesces into one vesicle destined for exocytosis. 
D)  All of the above might explain why the vacuole returns to a red color. 
E)  None of the above are plausible explanations. 
A)  The pH returns to a basic environment due to increasing proton concentration. 
B)  The pH returns to a basic environment due to a decreasing proton concentration. 
C)  The dye from all food vacuoles coalesces into one vesicle destined for exocytosis. 
D)  All of the above might explain why the vacuole returns to a red color. 
E)  None of the above are plausible explanations.

Question 3

Microbial eukaryotes with flagella

Accepted Answer

A)  appear in several clades. 
B)  are all algae. 
C)  all have pseudopods. 
D)  are all colonial. 
E)  are never pathogenic. 
A)  appear in several clades. 
B)  are all algae. 
C)  all have pseudopods. 
D)  are all colonial. 
E)  are never pathogenic.

Question 4

Which of the following characteristics represents the synapomorphy of the alveolates?

Accepted Answer

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

Question 5

In terms of their nutritional mode, microbial eukaryotes are

Accepted Answer

A)  autotrophs. 
B)  absorptive heterotrophs. 
C)  ingestive heterotrophs. 
D)  Both a and b 
E)  All of the above 
A)  autotrophs. 
B)  absorptive heterotrophs. 
C)  ingestive heterotrophs. 
D)  Both a and b 
E)  All of the above

Question 6

Some chlorophytes exhibit a variation of the heteromorphic life cycle called the _______ life cycle.

Accepted Answer

The answer of Some chlorophytes exhibit a variation of the...

Question 7

Use the following to answer questions:
Refer to the diagram below, showing alternation of generations.  
-Does A or B produce spores, and by what process are they produced (mitosis or meiosis)?

Accepted Answer

The answer of Use the following to answer questions:
Refer to...

Question 8

Which of the following statements regarding conjugation in Paramecium is false?

Accepted Answer

A)  Conjugation results in genetic recombination. 
B)  Conjugation results in clones. 
C)  Conjugation results in offspring. 
D)  Conjugation is a sexual process. 
E)  Conjugation results in the production of no new cells. 
A)  Conjugation results in genetic recombination. 
B)  Conjugation results in clones. 
C)  Conjugation results in offspring. 
D)  Conjugation is a sexual process. 
E)  Conjugation results in the production of no new cells.

Question 9

The form taken by plasmodial slime molds under adverse environmental conditions is called a _______. This structure rapidly becomes a _______ again upon restoration of favorable conditions.

Accepted Answer

sclerotium

Question 10

Which of the following statements does not apply to diatoms?

Accepted Answer

A)  The cell walls are often impregnated with silicon. 
B)  During mitosis, the top and bottom of the cell become the tops of the two new cells. 
C)  Floridean starch 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 silicon. 
B)  During mitosis, the top and bottom of the cell become the tops of the two new cells. 
C)  Floridean starch 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 11

_______ are specialized vesicles that excrete the excess water taken in by some microbial eukaryotes.

Accepted Answer

Contractil

Question 12

Which clade of eukaryotes includes groups that produce chlorophyll a and b?

Accepted Answer

A)  Chromalveolates 
B)  Plantae 
C)  Excavates 
D)  Rhizaria 
E)  Unikonts 
A)  Chromalveolates 
B)  Plantae 
C)  Excavates 
D)  Rhizaria 
E)  Unikonts

Question 13

Which of the following groups contains multicellular brown algae and giant kelps?

Accepted Answer

A)  Diplomonads 
B)  Chlorophytes 
C)  Stramenopiles 
D)  Alveolates 
E)  Euglenozoans 
A)  Diplomonads 
B)  Chlorophytes 
C)  Stramenopiles 
D)  Alveolates 
E)  Euglenozoans

Question 14

Most protists are motile. Describe some of the means of motility.

Accepted Answer

Protists move by flagella, cil

Question 15

Which of the following represents the synapomorphy of the stramenopiles?

Accepted Answer

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

Question 16

Which of the following is a sexual reproductive process common to organisms in the Protista (microbial eukaryotes) group?

Accepted Answer

A)  Binary fission 
B)  Multiple fission 
C)  Budding and spore formation 
D)  Union of gametes 
E)  All of the above 
A)  Binary fission 
B)  Multiple fission 
C)  Budding and spore formation 
D)  Union of gametes 
E)  All of the above

Question 17

The algal microbial eukaryote groups differ from one another in terms of their

Accepted Answer

A)  principal photosynthetic storage product. 
B)  body plan (unicellular or multicellular). 
C)  lack of or possession of flagella. 
D)  principal photosynthetic pigments. 
E)  All of the above 
A)  principal photosynthetic storage product. 
B)  body plan (unicellular or multicellular). 
C)  lack of or possession of flagella. 
D)  principal photosynthetic pigments. 
E)  All of the above

Question 18

Which of the following statements about the protist cytoskeleton is false?

Accepted Answer

A)  It allows for the formation of pseudopods. 
B)  It is the main structural component of cilia. 
C)  It is the primary component of the diatoms' outer shell. 
D)  It is the main structural component of flagella. 
E)  It helps in removing excess water via the contractile vacuoles. 
A)  It allows for the formation of pseudopods. 
B)  It is the main structural component of cilia. 
C)  It is the primary component of the diatoms' outer shell. 
D)  It is the main structural component of flagella. 
E)  It helps in removing excess water via the contractile vacuoles.

Question 19

The cellular slime molds

Accepted Answer

A)  possess apical complexes. 
B)  lack fruiting bodies. 
C)  form a plasmodium that is a coenocyte. 
D)  have haploid myxamoebas. 
E)  possess flagella. 
A)  possess apical complexes. 
B)  lack fruiting bodies. 
C)  form a plasmodium that is a coenocyte. 
D)  have haploid myxamoebas. 
E)  possess flagella.

Question 20

Which of the following statements about brown algae is false?

Accepted Answer

A)  They are multicelluar. 
B)  They are closely related to red algae. 
C)  They contain chlorophyll a. 
D)  They contain fucoxanthin. 
E)  They are almost exclusively marine. 
A)  They are multicelluar. 
B)  They are closely related to red algae. 
C)  They contain chlorophyll a. 
D)  They contain fucoxanthin. 
E)  They are almost exclusively marine.

Exam 27: The Origin and Diversification of Eukaryotes

_______ have created vast limestone deposits throughout the world.

The figure below details an experiment to determine if Paramecia digest food in an acidic environment. What can you hypothesize about why the vacuole color returns to red?

Microbial eukaryotes with flagella

Which of the following characteristics represents the synapomorphy of the alveolates?

In terms of their nutritional mode, microbial eukaryotes are

Some chlorophytes exhibit a variation of the heteromorphic life cycle called the _______ life cycle.

Use the following to answer questions: Refer to the diagram below, showing alternation of generations. -Does A or B produce spores, and by what process are they produced (mitosis or meiosis)?

Which of the following statements regarding conjugation in Paramecium is false?

The form taken by plasmodial slime molds under adverse environmental conditions is called a _______. This structure rapidly becomes a _______ again upon restoration of favorable conditions.

Which of the following statements does not apply to diatoms?

_______ are specialized vesicles that excrete the excess water taken in by some microbial eukaryotes.

Which clade of eukaryotes includes groups that produce chlorophyll a and b?

Which of the following groups contains multicellular brown algae and giant kelps?

Most protists are motile. Describe some of the means of motility.

Which of the following represents the synapomorphy of the stramenopiles?

Which of the following is a sexual reproductive process common to organisms in the Protista (microbial eukaryotes) group?

The algal microbial eukaryote groups differ from one another in terms of their

Which of the following statements about the protist cytoskeleton is false?

The cellular slime molds

Which of the following statements about brown algae is false?

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

Reconstructing and Using Phylogenies

Species and Their Formation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria and Archaea: the Prokaryotic Domains

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Circulatory Systems

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen

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The form taken by plasmodial slime molds under adverse environmental conditions is called a _. This structure rapidly becomes a _ again upon restoration of favorable conditions.