Question 1

Protists have various means of locomotion; they move by all of the following means EXCEPT:

Accepted Answer

A)  by flexing individual cells. 
B)  by gliding over surfaces. 
C)  by waving cilia. 
D)  by mycelium. 
E)  by lashing flagella. 
A)  by flexing individual cells. 
B)  by gliding over surfaces. 
C)  by waving cilia. 
D)  by mycelium. 
E)  by lashing flagella. D

Question 2

What evidence supports serial endosymbiosis of mitochondria?

Accepted Answer

Concepts to Consider: Mitochondrial DNA suggests that it is left over from the mitochondrion's past where it was a separate organism. Ribosomal RNA from mitochondria is closely related to purple bacteria.

Question 3

Unikonts also have a ____________ that has major evolutionary significance.

Accepted Answer

,triple-gene fusion

Question 4

Match between columns
                        Premises: Dinoflagellates and water molds

Accepted Answer

The Answer of Chromalveolates and Unikonts and Rhizarians and Archaeplastids is...

Question 5

Which protist group is characterized by having a micronucleus and a macronucleus?

Accepted Answer

A)  Ciliates 
B)  Euglenoids 
C)  Actinopods 
D)  Diplomonads 
E)  Amoebozoans 
A)  Ciliates 
B)  Euglenoids 
C)  Actinopods 
D)  Diplomonads 
E)  Amoebozoans

Question 6

Which are the symbiotic dinoflagellates, which live in the bodies of marine invertebrates such as corals?

Accepted Answer

A)  Ciliates 
B)  Sporozites 
C)  Apicomplexans 
D)  Zooxanthellae 
E)  Stramenopiles 
A)  Ciliates 
B)  Sporozites 
C)  Apicomplexans 
D)  Zooxanthellae 
E)  Stramenopiles

Question 7

An example of an excavate that has a pellicle is Euglena .

Accepted Answer

A) True 
 B)False

Question 8

Which statement best describes the composition of cell walls found in water molds?

Accepted Answer

A)  All individuals have only walls made of cellulose. 
B)  All individuals have only walls made of chitin. 
C)  All individuals have only peptidoglycan walls. 
D)  Some individuals have cell walls of chitin, and others have cell walls of cellulose. 
E)  Some individuals have cell walls of chitin, some have cell walls of cellulose, and some have cell walls of both chitin and cellulose. 
A)  All individuals have only walls made of cellulose. 
B)  All individuals have only walls made of chitin. 
C)  All individuals have only peptidoglycan walls. 
D)  Some individuals have cell walls of chitin, and others have cell walls of cellulose. 
E)  Some individuals have cell walls of chitin, some have cell walls of cellulose, and some have cell walls of both chitin and cellulose.

Question 9

______ are unicellular amoebozoa found in soil, fresh water, the ocean, and other organisms.

Accepted Answer

The answer of ______ are unicellular amoebozoa found in soil,...

Question 10

_________ secrete many-chambered tests with pores through which cytoplasmic projections extend to move and obtain food.

Accepted Answer

A)  Forams 
B)  Rhizarians 
C)  Actinopods 
D)  Red algae 
E)  Choanoflagellates 
A)  Forams 
B)  Rhizarians 
C)  Actinopods 
D)  Red algae 
E)  Choanoflagellates

Question 11

Match between columns
                        Premises: Forams and actinopods

Accepted Answer

The Answer of Chromalveolates and Excavates and Unikonts and Archaeplastids is...

Question 12

Pseudopodia are used by Amoeba for ingesting food as well as for:

Accepted Answer

A)  digestion. 
B)  excretion. 
C)  locomotion. 
D)  reproduction. 
E)  avoiding predation. 
A)  digestion. 
B)  excretion. 
C)  locomotion. 
D)  reproduction. 
E)  avoiding predation.

Question 13

Actinopods are mostly marine plankton rhizarians with long, filamentous cytoplasmic projections called __________.

Accepted Answer

A)  cytoplasmic projections 
B)  flagella 
C)  axopods 
D)  cilia 
E)  forams 
A)  cytoplasmic projections 
B)  flagella 
C)  axopods 
D)  cilia 
E)  forams

Question 14

Which statement about euglenoids is FALSE?

Accepted Answer

A)  They have a pellicle. 
B)  They are unicellular. 
C)  They are all photosynthetic. 
D)  Their cells contain mitochondria. 
E)  They have 9 + 2 arrangement of microtubules in their flagella. 
A)  They have a pellicle. 
B)  They are unicellular. 
C)  They are all photosynthetic. 
D)  Their cells contain mitochondria. 
E)  They have 9 + 2 arrangement of microtubules in their flagella.

Question 15

Which of the following statements is correct in the context of golden algae?

Accepted Answer

A)  Have a coenocytic mycelium 
B)  Are mostly unicellular, with shells containing silica 
C)  Are multicellular stramenopiles that are ecologically important in cooler ocean waters 
D)  Are mostly unicellular, biflagellate freshwater and marine stramenopiles 
E)  Are excavates with one or two nuclei and no functional mitochondria 
A)  Have a coenocytic mycelium 
B)  Are mostly unicellular, with shells containing silica 
C)  Are multicellular stramenopiles that are ecologically important in cooler ocean waters 
D)  Are mostly unicellular, biflagellate freshwater and marine stramenopiles 
E)  Are excavates with one or two nuclei and no functional mitochondria

Question 16

Ancestors of ____ may have possessed mitochondria, which were lost or reduced during evolutionary history.

Accepted Answer

A)  Paramecium 
B)  Laminaria 
C)  Amoeba 
D)  Euglena 
E)  Giardia 
A)  Paramecium 
B)  Laminaria 
C)  Amoeba 
D)  Euglena 
E)  Giardia

Question 17

Which protist group are characterized by a multinucleate amoeboid-like feeding form?

Accepted Answer

A)  Plasmodial slime molds 
B)  Cellular slime molds 
C)  Water molds 
D)  Amoebozoa 
E)  Brown algae 
A)  Plasmodial slime molds 
B)  Cellular slime molds 
C)  Water molds 
D)  Amoebozoa 
E)  Brown algae

Question 18

According to the serial endosymbiosis hypothesis, the ancestors of mitochondria are thought to be purple bacteria.

Accepted Answer

A) True 
 B)False

Question 19

Which type of protist is responsible for malaria in humans, parasitic to both humans and mosquitoes?

Accepted Answer

A)  Ciliates 
B)  Actinopods 
C)  Dinoflagellates 
D)  Apicomplexans 
E)  Foraminiferans 
A)  Ciliates 
B)  Actinopods 
C)  Dinoflagellates 
D)  Apicomplexans 
E)  Foraminiferans

Question 20

Which protist clade (supergroup) is characterized by their greatly modified mitochondria?

Accepted Answer

A)  Excavates 
B)  Unikonts 
C)  Rhizarians 
D)  Archaeplastids 
E)  Chromalvolates 
A)  Excavates 
B)  Unikonts 
C)  Rhizarians 
D)  Archaeplastids 
E)  Chromalvolates

Exam 26: Protists

Protists have various means of locomotion; they move by all of the following means EXCEPT:

What evidence supports serial endosymbiosis of mitochondria?

Unikonts also have a ____________ that has major evolutionary significance.

Which protist group is characterized by having a micronucleus and a macronucleus?

Which are the symbiotic dinoflagellates, which live in the bodies of marine invertebrates such as corals?

An example of an excavate that has a pellicle is Euglena .

Which statement best describes the composition of cell walls found in water molds?

______ are unicellular amoebozoa found in soil, fresh water, the ocean, and other organisms.

_________ secrete many-chambered tests with pores through which cytoplasmic projections extend to move and obtain food.

Pseudopodia are used by Amoeba for ingesting food as well as for:

Actinopods are mostly marine plankton rhizarians with long, filamentous cytoplasmic projections called __________.

Which statement about euglenoids is FALSE?

Which of the following statements is correct in the context of golden algae?

Ancestors of ____ may have possessed mitochondria, which were lost or reduced during evolutionary history.

Which protist group are characterized by a multinucleate amoeboid-like feeding form?

According to the serial endosymbiosis hypothesis, the ancestors of mitochondria are thought to be purple bacteria.

Which type of protist is responsible for malaria in humans, parasitic to both humans and mosquitoes?

Which protist clade (supergroup) is characterized by their greatly modified mitochondria?

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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