Question 1

The chloroplasts of photosynthetic protists

Accepted Answer

A)  are structurally identical. 
B)  gave rise to mitochondria. 
C)  are all descended from a once free-living cyanobacterium. 
D)  all have exactly two surrounding membranes. 
E)  are all descended from a once free-living red alga. 
A)  are structurally identical. 
B)  gave rise to mitochondria. 
C)  are all descended from a once free-living cyanobacterium. 
D)  all have exactly two surrounding membranes. 
E)  are all descended from a once free-living red alga.

Question 2

The process by which a diploid generation that produces spores alternates with a haploid generation that produces gametes is called _______.

Accepted Answer

alternatio

Question 3

During the evolution of eukaryotes from prokaryotes, which of the following did not occur?

Accepted Answer

A)  Infolding of the flexible cell membrane 
B)  Loss of the cell wall 
C)  A switch from aerobic to anaerobic metabolism 
D)  Endosymbiosis of once free-living prokaryotes 
E)  Development of a cytoskeleton 
A)  Infolding of the flexible cell membrane 
B)  Loss of the cell wall 
C)  A switch from aerobic to anaerobic metabolism 
D)  Endosymbiosis of once free-living prokaryotes 
E)  Development of a cytoskeleton

Question 4

Which of the following are not unikonts?

Accepted Answer

A)  Fungi 
B)  Algae 
C)  Animals 
D)  Choanoflagellates 
E)  Slime molds 
A)  Fungi 
B)  Algae 
C)  Animals 
D)  Choanoflagellates 
E)  Slime molds

Question 5

A water mold is discovered growing on the surface of a freshwater green alga. Which two groups of protists are involved?

Accepted Answer

A)  Choanoflagellates and red algae 
B)  Oomycetes and chlorophytes 
C)  Apicomplexans and chlorophytes 
D)  Apicomplexans and ciliophora 
E)  Stramenopiles and oomycetes 
A)  Choanoflagellates and red algae 
B)  Oomycetes and chlorophytes 
C)  Apicomplexans and chlorophytes 
D)  Apicomplexans and ciliophora 
E)  Stramenopiles and oomycetes

Question 6

There are three clades referred to as "algae." The _______ algae are in the chromalveolate group.

Accepted Answer

The answer of There are three clades referred to as...

Question 7

The gametocytes of the malaria-causing organism Plasmodium,

Accepted Answer

A)  develop into merozoites. 
B)  inhabit the salivary glands of Anopheles mosquitoes. 
C)  are the infective stage obtained from the insect vector. 
D)  are found inside red blood cells. 
E)  give rise to zygotes within the mammalian circulatory system. 
A)  develop into merozoites. 
B)  inhabit the salivary glands of Anopheles mosquitoes. 
C)  are the infective stage obtained from the insect vector. 
D)  are found inside red blood cells. 
E)  give rise to zygotes within the mammalian circulatory system.

Question 8

The most basal group of plants are in a small clade known as the _______, which are unicellular, fresh­water organisms.

Accepted Answer

The answer of The most basal group of plants are...

Question 9

Sea lettuce, Ulva lactuca, is a member of the green algae clade of

Accepted Answer

A)  charophytes. 
B)  glaucophytes. 
C)  coenocytes. 
D)  chlorophytes. 
E)  None of the above 
A)  charophytes. 
B)  glaucophytes. 
C)  coenocytes. 
D)  chlorophytes. 
E)  None of the above

Question 10

Describe the origin of double-membrane-enclosed and triple-membrane-enclosed chloroplasts.

Accepted Answer

Double-membrane-enclosed chloroplasts mo

Question 11

Dinoflagellates are common endosymbionts of

Accepted Answer

A)  coral. 
B)  fungi. 
C)  other dinoflagellates. 
D)  tertiary endosymbionts. 
E)  None of the above 
A)  coral. 
B)  fungi. 
C)  other dinoflagellates. 
D)  tertiary endosymbionts. 
E)  None of the above

Question 12

Paramecium uses a precise form of locomotion; by beating its _______, it can move forward or backward.

Accepted Answer

The answer of Paramecium uses a precise form of locomotion;...

Question 13

Which of the following diseases is not caused by the trypanosomes?

Accepted Answer

A)  African sleeping sickness 
B)  Malaria 
C)  Leishmaniasis 
D)  Chagas' disease 
E)  None of the above; all of these diseases are caused by trypanosomes. 
A)  African sleeping sickness 
B)  Malaria 
C)  Leishmaniasis 
D)  Chagas' disease 
E)  None of the above; all of these diseases are caused by trypanosomes.

Question 14

Which of the following statements about protists is false?

Accepted Answer

A)  Apicomplexans are the only microbial eukaryote group without parasitic representatives. 
B)  Foraminiferans and radiolarians are shelled protists. 
C)  Ciliates have great control over the direction their cilia beat. 
D)  Although they appear structurally simple, amoebas are not primitive organisms. 
E)  All diatoms are unicellular, although a few individual species associate in filaments. 
A)  Apicomplexans are the only microbial eukaryote group without parasitic representatives. 
B)  Foraminiferans and radiolarians are shelled protists. 
C)  Ciliates have great control over the direction their cilia beat. 
D)  Although they appear structurally simple, amoebas are not primitive organisms. 
E)  All diatoms are unicellular, although a few individual species associate in filaments.

Question 15

Stramenopiles

Accepted Answer

A)  are all photosynthesizers. 
B)  include the diatoms. 
C)  are all unicellular. 
D)  reproduce only asexually. 
E)  have flagella. 
A)  are all photosynthesizers. 
B)  include the diatoms. 
C)  are all unicellular. 
D)  reproduce only asexually. 
E)  have flagella.

Question 16

In the alternation of generations, the gametophyte generation is _______ and produces _______.

Accepted Answer

A)  haploid; spores 
B)  haploid; gametes 
C)  diploid; spores 
D)  diploid; gametes 
E)  haploid or diploid; spores 
A)  haploid; spores 
B)  haploid; gametes 
C)  diploid; spores 
D)  diploid; gametes 
E)  haploid or diploid; spores

Question 17

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

Accepted Answer

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

Question 18

Which of the following include species that form large toxic "blooms" 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 19

When some autotrophic Euglena are placed in the dark, they

Accepted Answer

A)  stop producing their photosynthetic pigment. 
B)  produce an excess of photosynthetic pigment. 
C)  begin feeding on organic material floating in the surrounding water. 
D)  die. 
E)  Both a and c 
A)  stop producing their photosynthetic pigment. 
B)  produce an excess of photosynthetic pigment. 
C)  begin feeding on organic material floating in the surrounding water. 
D)  die. 
E)  Both a and c

Question 20

Use the following to answer questions :
Refer to the diagram below.  
-Does the diagram show primary or secondary endosymbiosis? Is the resulting organelle a mitochondrion or a chloroplast?

Accepted Answer

Primary; c

Exam 27: The Origin and Diversification of Eukaryotes

The chloroplasts of photosynthetic protists

The process by which a diploid generation that produces spores alternates with a haploid generation that produces gametes is called _______.

During the evolution of eukaryotes from prokaryotes, which of the following did not occur?

Which of the following are not unikonts?

A water mold is discovered growing on the surface of a freshwater green alga. Which two groups of protists are involved?

There are three clades referred to as "algae." The _______ algae are in the chromalveolate group.

The gametocytes of the malaria-causing organism Plasmodium,

The most basal group of plants are in a small clade known as the _______, which are unicellular, fresh­water organisms.

Sea lettuce, Ulva lactuca, is a member of the green algae clade of

Describe the origin of double-membrane-enclosed and triple-membrane-enclosed chloroplasts.

Dinoflagellates are common endosymbionts of

Paramecium uses a precise form of locomotion; by beating its _______, it can move forward or backward.

Which of the following diseases is not caused by the trypanosomes?

Which of the following statements about protists is false?

Stramenopiles

In the alternation of generations, the gametophyte generation is _______ and produces _______.

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

Which of the following include species that form large toxic "blooms" in the ocean?

When some autotrophic Euglena are placed in the dark, they

Use the following to answer questions : Refer to the diagram below. -Does the diagram show primary or secondary endosymbiosis? Is the resulting organelle a mitochondrion or a chloroplast?

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

Animal Behavior

Ecology and the Distribution of Life

Population Ecology

Species Interaction and Coevolution

Community Ecology

Ecosystems and Global Ecology

Conservation Biology

Filters

The most basal group of plants are in a small clade known as the _______, which are unicellular, freshwater organisms.

In the alternation of generations, the gametophyte generation is _ and produces _.