Question 1

What do all protists possess?

Accepted Answer

A) cell walls 
B) multiple, circular chromosomes 
C) chloroplasts 
D) microtubules and microfilaments 
A) cell walls 
B) multiple, circular chromosomes 
C) chloroplasts 
D) microtubules and microfilaments

Question 2

-In the figure, what is the function of the structure labelled as number 2?

Accepted Answer

A) waste elimination 
B) asexual reproduction 
C) digestion 
D) food intake 
A) waste elimination 
B) asexual reproduction 
C) digestion 
D) food intake

Question 3

Until recently, protists have been classified according to observable traits such as modes of nutrition and mechanisms of movement. What is the basis for modern protist classification?

Accepted Answer

A) their evolutionary relatedness 
B) their similarity to plants 
C) their cell wall types 
D) their types of life cycles 
A) their evolutionary relatedness 
B) their similarity to plants 
C) their cell wall types 
D) their types of life cycles

Question 4

When does secondary endosymbiosis occur?

Accepted Answer

A) when a nonphotosynthetic eukaryote engulfs a photosynthetic eukaryote 
B) when a nonphotosynthetic eukaryote engulfs a photosynthetic prokaryote 
C) when a photosynthetic eukaryote engulfs a photosynthetic prokaryote 
D) when a photosynthetic eukaryote engulfs a nonphotosynthetic prokaryote 
A) when a nonphotosynthetic eukaryote engulfs a photosynthetic eukaryote 
B) when a nonphotosynthetic eukaryote engulfs a photosynthetic prokaryote 
C) when a photosynthetic eukaryote engulfs a photosynthetic prokaryote 
D) when a photosynthetic eukaryote engulfs a nonphotosynthetic prokaryote

Question 5

How many different species of Plasmodium cause malaria?

Accepted Answer

A) two 
B) three 
C) four 
D) five 
A) two 
B) three 
C) four 
D) five

Question 6

Which of the following protists is the cause of "beaver fever"?

Accepted Answer

A) Physarum polycephalum 
B) Plasmodium falciparum 
C) Giardia lamblia 
D) Pseudomonas aeruginosa 
A) Physarum polycephalum 
B) Plasmodium falciparum 
C) Giardia lamblia 
D) Pseudomonas aeruginosa

Question 7

Which of the following protist lineages does NOT belong to the supergroup Excavata?

Accepted Answer

A) Kinetoplastids 
B) Parabasalids 
C) Diplomonadas 
D) Diatoms 
A) Kinetoplastids 
B) Parabasalids 
C) Diplomonadas 
D) Diatoms

Question 8

Match each characteristic to a type of algae. Algae may be used once, more than once, or not at all.
-fucoxanthin

Accepted Answer

A) blue-green algae 
B) green algae 
C) brown algae 
D) red algae 
E) golden algae 
A) blue-green algae 
B) green algae 
C) brown algae 
D) red algae 
E) golden algae

Question 9

Which of the following algal groups is the most diverse?

Accepted Answer

A) red 
B) green 
C) golden 
D) blue-green 
A) red 
B) green 
C) golden 
D) blue-green

Question 10

Which type of cellular proteins internally support the axopods of radiolarians?

Accepted Answer

A) microfilaments 
B) microtubules 
C) actin filaments 
D) lysosomal proteins 
A) microfilaments 
B) microtubules 
C) actin filaments 
D) lysosomal proteins

Question 11

How do water moulds differ from true fungi?

Accepted Answer

A) Water moulds are haploid, while fungi are diploid. 
B) Water moulds form hyphae, while fungi form mycelia. 
C) Water moulds have a different genetic composition than fungi do. 
D) Water moulds have cell walls made up of chitin, while fungi have cell walls made up of cellulose. 
A) Water moulds are haploid, while fungi are diploid. 
B) Water moulds form hyphae, while fungi form mycelia. 
C) Water moulds have a different genetic composition than fungi do. 
D) Water moulds have cell walls made up of chitin, while fungi have cell walls made up of cellulose.

Question 12

-In the figure, which label identifies the structure that is the fruiting body?

Accepted Answer

A) label A 
B) label B 
C) label C 
D) label E 
A) label A 
B) label B 
C) label C 
D) label E

Question 13

-In the figure, which organism's life cycle is illustrated?

Accepted Answer

A) cellular slime mould 
B) green algae 
C) water mould 
D) plasmodial slime mould 
A) cellular slime mould 
B) green algae 
C) water mould 
D) plasmodial slime mould

Question 14

The pigments responsible for the colour of red algae are the prodigiosins.

Accepted Answer

A) True 
 B)False

Question 15

What types of algae get their colour from the pigment fucoxanthin?

Accepted Answer

A) red algae and golden algae 
B) brown algae and golden algae 
C) brown algae and green algae 
D) red algae green algae 
A) red algae and golden algae 
B) brown algae and golden algae 
C) brown algae and green algae 
D) red algae green algae

Question 16

-Which step in the life cycle of the organism in the figure causes disease symptoms in a human host?

Accepted Answer

A) 1 
B) 4 
C) 5 
D) 6 
A) 1 
B) 4 
C) 5 
D) 6

Question 17

The White Cliffs of Dover, England, are composed of shells of ancient diatoms.

Accepted Answer

A) True 
 B)False

Question 18

Many algal species have life cycles consisting of alternating haploid and diploid generations. Which sentence describes the organisms that comprise the most common life cycle in brown algae?

Accepted Answer

A) They are unicellular in both the haploid and diploid stages. 
B) They are colonial in both the haploid and diploid stages. 
C) They are multicellular in both the haploid and diploid stages. 
D) They are multicellular in the haploid stage and unicellular in the diploid stage. 
A) They are unicellular in both the haploid and diploid stages. 
B) They are colonial in both the haploid and diploid stages. 
C) They are multicellular in both the haploid and diploid stages. 
D) They are multicellular in the haploid stage and unicellular in the diploid stage.

Question 19

Which genera is included in the ciliates group?

Accepted Answer

A) Entamoeba 
B) Paramecium 
C) Trichomonas 
D) Anopheles 
A) Entamoeba 
B) Paramecium 
C) Trichomonas 
D) Anopheles

Question 20

Suppose that you find a protist that has a single flagellum surrounded by a collar of microvilli. What could be concluded about this organism?

Accepted Answer

A) It is a choanoflagellate. 
B) It is a plasmodial slime mould. 
C) It is a cellular slime mould. 
D) It is not an opisthokont. 
A) It is a choanoflagellate. 
B) It is a plasmodial slime mould. 
C) It is a cellular slime mould. 
D) It is not an opisthokont.

Exam 24: Protists

What do all protists possess?

-In the figure, what is the function of the structure labelled as number 2?

Until recently, protists have been classified according to observable traits such as modes of nutrition and mechanisms of movement. What is the basis for modern protist classification?

When does secondary endosymbiosis occur?

How many different species of Plasmodium cause malaria?

Which of the following protists is the cause of "beaver fever"?

Which of the following protist lineages does NOT belong to the supergroup Excavata?

Match each characteristic to a type of algae. Algae may be used once, more than once, or not at all. -fucoxanthin

Which of the following algal groups is the most diverse?

Which type of cellular proteins internally support the axopods of radiolarians?

How do water moulds differ from true fungi?

-In the figure, which label identifies the structure that is the fruiting body?

-In the figure, which organism's life cycle is illustrated?

The pigments responsible for the colour of red algae are the prodigiosins.

What types of algae get their colour from the pigment fucoxanthin?

-Which step in the life cycle of the organism in the figure causes disease symptoms in a human host?

The White Cliffs of Dover, England, are composed of shells of ancient diatoms.

Many algal species have life cycles consisting of alternating haploid and diploid generations. Which sentence describes the organisms that comprise the most common life cycle in brown algae?

Which genera is included in the ciliates group?

Suppose that you find a protist that has a single flagellum surrounded by a collar of microvilli. What could be concluded about this organism?

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

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