Question 1

Four of the following are true of euglenoids. Which statement is false?

Accepted Answer

A)  ​Many move by pseudopods. 
B)  ​Many contain chloroplasts. 
C)  ​Many absorb nutrients from their environment in a heterotrophic manner. 
D)  ​Their cell body is surrounded by a pellicle. 
E)  ​They use a contractile vacuole to maintain water balance. 
A)  ​Many move by pseudopods. 
B)  ​Many contain chloroplasts. 
C)  ​Many absorb nutrients from their environment in a heterotrophic manner. 
D)  ​Their cell body is surrounded by a pellicle. 
E)  ​They use a contractile vacuole to maintain water balance. A

Question 2

In ciliates, the ____ is used for ____.

Accepted Answer

A)  ​gullet; digestion 
B)  ​cilia; flexible support 
C)  ​pellicle; digestion 
D)  ​contractile vacuole; food gathering 
E)  ​pellicle; water balance 
A)  ​gullet; digestion 
B)  ​cilia; flexible support 
C)  ​pellicle; digestion 
D)  ​contractile vacuole; food gathering 
E)  ​pellicle; water balance A

Question 3

Figure 21.5
  
-The organism in the accompanying figure belongs to which group?

Accepted Answer

A)  ​excavates 
B)  ​alveolates 
C)  ​stramenopiles 
D)  ​green algae 
E)  ​amoebozoans 
A)  ​excavates 
B)  ​alveolates 
C)  ​stramenopiles 
D)  ​green algae 
E)  ​amoebozoans A

Question 4

Are humans responsible for neurotoxic shellfish poisoning? Why or why not?​

Accepted Answer

Indirectly, yes we are. Dinoflagellates

Question 5

The ____ gives structure to many unwalled, single-celled protists.

Accepted Answer

A)  ​contractile vacuole 
B)  ​pellicle 
C)  ​Golgi body 
D)  ​endoplasmic reticulum 
E)  ​nucleus 
A)  ​contractile vacuole 
B)  ​pellicle 
C)  ​Golgi body 
D)  ​endoplasmic reticulum 
E)  ​nucleus

Question 6

​Select the best choice for the following statements using the five groups listed below.
-Chagas disease and African sleeping sickness are caused by members of this group.

Accepted Answer

A) ​apicomplexans 
B) ​amoebozoans 
C) ​euglenoids 
D) ​dinoflagellates 
E) ​trypanosomes 
A) ​apicomplexans 
B) ​amoebozoans 
C) ​euglenoids 
D) ​dinoflagellates 
E) ​trypanosomes

Question 7

​Select the best choice for the following statements using the five groups listed below.
-The slime molds are members of this group.

Accepted Answer

A) ​apicomplexans 
B) ​amoebozoans 
C) ​euglenoids 
D) ​dinoflagellates 
E) ​trypanosomes 
A) ​apicomplexans 
B) ​amoebozoans 
C) ​euglenoids 
D) ​dinoflagellates 
E) ​trypanosomes

Question 8

The causative agents of Chagas disease and African sleeping sickness are ____.

Accepted Answer

A)  ​trypanosomes 
B)  ​euglenoids 
C)  ​hydrogenosomes 
D)  ​diplomonads 
E)  ​parabasalids 
A)  ​trypanosomes 
B)  ​euglenoids 
C)  ​hydrogenosomes 
D)  ​diplomonads 
E)  ​parabasalids

Question 9

Why can red algae grow at deeper depths of water than green algae?

Accepted Answer

Green algae have chlorophylls a and b, w

Question 10

__________ are aquatic heterotrophs and autotrophs with a cellulose covering.

Accepted Answer

The answer of __________ are aquatic heterotrophs and autotrophs with...

Question 11

__________ are heterotrophs that grow as a mesh of absorptive filaments. Some are plant pathogens.

Accepted Answer

The answer of __________ are heterotrophs that grow as a...

Question 12

Four of the following statements are true about stramenopiles. Which statement is FALSE?​

Accepted Answer

A)  ​They are filamentous heterotrophs. 
B)  ​Some species are unicellular. 
C)  ​They include diatoms and red algae. 
D)  ​Most are photosynthetic. 
E)  ​Their chloroplast structure suggests evolution by secondary endosymbiosis. 
A)  ​They are filamentous heterotrophs. 
B)  ​Some species are unicellular. 
C)  ​They include diatoms and red algae. 
D)  ​Most are photosynthetic. 
E)  ​Their chloroplast structure suggests evolution by secondary endosymbiosis.

Question 13

The term "plankton" ____.

Accepted Answer

A)  ​refers to a taxonomic division of algae 
B)  ​is a common term for microscopic organisms that drift or swim weakly in water 
C)  ​includes only multicellular forms 
D)  ​refers to small aquatic plants 
E)  ​would apply to large brown algae 
A)  ​refers to a taxonomic division of algae 
B)  ​is a common term for microscopic organisms that drift or swim weakly in water 
C)  ​includes only multicellular forms 
D)  ​refers to small aquatic plants 
E)  ​would apply to large brown algae

Question 14

__________ and __________ are single-celled heterotrophs with a secreted shell.

Accepted Answer

Foraminife

Question 15

Which group is most closely related to fungi?​

Accepted Answer

A)  ​radiolarians 
B)  ​stramenopiles 
C)  ​alveolates 
D)  ​choanoflagellates 
E)  ​oomycetes 
A)  ​radiolarians 
B)  ​stramenopiles 
C)  ​alveolates 
D)  ​choanoflagellates 
E)  ​oomycetes

Question 16

Land plants are thought to be most closely related to the ____.

Accepted Answer

A)  ​chlorophyte algae 
B)  ​red algae 
C)  ​charophyte algae 
D)  ​brown algae 
E)  ​euglenoids 
A)  ​chlorophyte algae 
B)  ​red algae 
C)  ​charophyte algae 
D)  ​brown algae 
E)  ​euglenoids

Question 17

Figure 21.17A
  
-The kelp shown in the accompanying figure represents the ____ stage in its life cycle.

Accepted Answer

A)  ​spore-bearing 
B)  ​gamete-forming 
C)  ​haploid 
D)  ​motile 
E)  ​feeding 
A)  ​spore-bearing 
B)  ​gamete-forming 
C)  ​haploid 
D)  ​motile 
E)  ​feeding

Question 18

The production of light by an organism is called ____.

Accepted Answer

A)  ​autophotoproduction 
B)  ​bioluminescence 
C)  ​luminarianism 
D)  ​autoillumination 
E)  ​bioillumination 
A)  ​autophotoproduction 
B)  ​bioluminescence 
C)  ​luminarianism 
D)  ​autoillumination 
E)  ​bioillumination

Question 19

Figure 21.15
​
   
Refer to the accompanying figure for questions .
-At which stage does the Plasmodium (malaria) parasite reproduce asexually and mature into merozoites?​

Accepted Answer

A)  ​A 
B)  ​B 
C)  ​C 
D)  ​D 
E)  ​E 
A)  ​A 
B)  ​B 
C)  ​C 
D)  ​D 
E)  ​E

Question 20

Four of the following are true about water molds. Which one is the exception?​

Accepted Answer

A)  ​Water mold is responsible for the Irish potato famine. 
B)  ​Some species are aquatic parasites. 
C)  ​Most act as decomposers. 
D)  ​Their filaments are composed of haploid cells. 
E)  ​They are heterotrophs. 
A)  ​Water mold is responsible for the Irish potato famine. 
B)  ​Some species are aquatic parasites. 
C)  ​Most act as decomposers. 
D)  ​Their filaments are composed of haploid cells. 
E)  ​They are heterotrophs.

Exam 21: Protists - the Simplest Eukaryotes

Four of the following are true of euglenoids. Which statement is false?

In ciliates, the ____ is used for ____.

Figure 21.5 -The organism in the accompanying figure belongs to which group?

Are humans responsible for neurotoxic shellfish poisoning? Why or why not?​

The ____ gives structure to many unwalled, single-celled protists.

​Select the best choice for the following statements using the five groups listed below. -Chagas disease and African sleeping sickness are caused by members of this group.

​Select the best choice for the following statements using the five groups listed below. -The slime molds are members of this group.

The causative agents of Chagas disease and African sleeping sickness are ____.

Why can red algae grow at deeper depths of water than green algae?

__________ are aquatic heterotrophs and autotrophs with a cellulose covering.

__________ are heterotrophs that grow as a mesh of absorptive filaments. Some are plant pathogens.

Four of the following statements are true about stramenopiles. Which statement is FALSE?​

The term "plankton" ____.

__________ and __________ are single-celled heterotrophs with a secreted shell.

Which group is most closely related to fungi?​

Land plants are thought to be most closely related to the ____.

Figure 21.17A -The kelp shown in the accompanying figure represents the ____ stage in its life cycle.

The production of light by an organism is called ____.

Figure 21.15 ​ Refer to the accompanying figure for questions . -At which stage does the Plasmodium (malaria) parasite reproduce asexually and mature into merozoites?​

Four of the following are true about water molds. Which one is the exception?​

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

In ciliates, the is used for .

Are humans responsible for neurotoxic shellfish poisoning? Why or why not?

Select the best choice for the following statements using the five groups listed below. -Chagas disease and African sleeping sickness are caused by members of this group.

Select the best choice for the following statements using the five groups listed below. -The slime molds are members of this group.

Four of the following statements are true about stramenopiles. Which statement is FALSE?

and are single-celled heterotrophs with a secreted shell.

Which group is most closely related to fungi?

Figure 21.15 Refer to the accompanying figure for questions . -At which stage does the Plasmodium (malaria) parasite reproduce asexually and mature into merozoites?

Four of the following are true about water molds. Which one is the exception?