Question 1

Contractile vacuoles in freshwater protozoans function to

Accepted Answer

A) remove excess water. 
B) remove the nitrogenous by-products of metabolism. 
C) capture prey. 
D) increase the efficiency of movement. 
E) destroy infectious bacteria. 
A) remove excess water. 
B) remove the nitrogenous by-products of metabolism. 
C) capture prey. 
D) increase the efficiency of movement. 
E) destroy infectious bacteria.

Question 2

The protozoan Trypanosoma brucei is the causal organism of the disease

Accepted Answer

A) African sleeping sickness. 
B) malaria. 
C) leishmaniasis. 
D) trichina. 
E) balantidiasis. 
A) African sleeping sickness. 
B) malaria. 
C) leishmaniasis. 
D) trichina. 
E) balantidiasis.

Question 3

The pathogenic amoeba that causes dysentery in humans is

Accepted Answer

A) Entamoeba gingivalis. 
B) Amoeba proteus. 
C) Entamoeba coli. 
D) Amoeba difflugia. 
E) Entamoeba histolytica. 
A) Entamoeba gingivalis. 
B) Amoeba proteus. 
C) Entamoeba coli. 
D) Amoeba difflugia. 
E) Entamoeba histolytica.

Question 4

__________ occurs in protists when a large number of daughter cells are formed from a single parent cell.

Accepted Answer

A) Multiple mitosis 
B) Fragmentation 
C) Budding 
D) Binary fission 
E) Schizogony 
A) Multiple mitosis 
B) Fragmentation 
C) Budding 
D) Binary fission 
E) Schizogony

Question 5

In protists,both gas exchange and excretion occur by __________ across the plasma membrane.

Accepted Answer

A) endocytosis 
B) active transport 
C) diffusion 
D) exocytosis 
E) facilitated diffusion 
A) endocytosis 
B) active transport 
C) diffusion 
D) exocytosis 
E) facilitated diffusion

Question 6

Protozoans in this group are nearly all parasites of humans.

Accepted Answer

A) Apicomplexans 
B) Dinoflagellates 
C) Ciliophorans 
D) Formaniferans 
E) Tubulineans 
A) Apicomplexans 
B) Dinoflagellates 
C) Ciliophorans 
D) Formaniferans 
E) Tubulineans

Question 7

The vectors of Trypanosoma are

Accepted Answer

A) Aedes mosquitoes. 
B) all species of flies. 
C) tsetse flies. 
D) all species of mosquitoes. 
E) all species of ticks and mites. 
A) Aedes mosquitoes. 
B) all species of flies. 
C) tsetse flies. 
D) all species of mosquitoes. 
E) all species of ticks and mites.

Question 8

In heterotrophic protists,digestion and transport of food occurs in

Accepted Answer

A) ingestion vacuoles. 
B) contractile vacuoles. 
C) egestion vacuoles. 
D) food vacuoles. 
E) cytopygial vacuoles. 
A) ingestion vacuoles. 
B) contractile vacuoles. 
C) egestion vacuoles. 
D) food vacuoles. 
E) cytopygial vacuoles.

Question 9

Pseudopodia that are broad and are used for locomotion and engulfing food are called

Accepted Answer

A) lobopodia. 
B) filipodia. 
C) reticulopodia. 
D) axopodia. 
E) amphipodia. 
A) lobopodia. 
B) filipodia. 
C) reticulopodia. 
D) axopodia. 
E) amphipodia.

Question 10

In a protist,the portion of the cytoplasm that lies just beneath the plasma membrane is called the

Accepted Answer

A) cell wall. 
B) cell membrane. 
C) hypoplasm. 
D) endoplasm. 
E) ectoplasm. 
A) cell wall. 
B) cell membrane. 
C) hypoplasm. 
D) endoplasm. 
E) ectoplasm.

Question 11

Toxoplasmosis is primarily carried to humans by

Accepted Answer

A) the tsetse fly. 
B) the mosquito. 
C) chickens. 
D) consumption of contaminated water. 
E) cats. 
A) the tsetse fly. 
B) the mosquito. 
C) chickens. 
D) consumption of contaminated water. 
E) cats.

Question 12

Ancient records indicate humans were infected with which parasite?

Accepted Answer

A) Toxoplasma. 
B) Isospora. 
C) Trypanosoma. 
D) Eimeria. 
E) Plasmodium. 
A) Toxoplasma. 
B) Isospora. 
C) Trypanosoma. 
D) Eimeria. 
E) Plasmodium.

Question 13

"Red-tides" are caused by

Accepted Answer

A) radiolarians. 
B) foraminiferans. 
C) sporozoans. 
D) volvicines. 
E) dinoflagellates. 
A) radiolarians. 
B) foraminiferans. 
C) sporozoans. 
D) volvicines. 
E) dinoflagellates.

Question 14

Egestion vacuoles release their contents by

Accepted Answer

A) simple diffusion. 
B) osmosis. 
C) active transport. 
D) facilitated diffusion. 
E) exocytosis. 
A) simple diffusion. 
B) osmosis. 
C) active transport. 
D) facilitated diffusion. 
E) exocytosis.

Question 15

The common means of sexual reproduction among ciliated protists is

Accepted Answer

A) budding. 
B) fragmentation. 
C) schizogony. 
D) conjugation. 
E) multiple fission. 
A) budding. 
B) fragmentation. 
C) schizogony. 
D) conjugation. 
E) multiple fission.

Question 16

Some of the oldest eukaryotic fossils are

Accepted Answer

A) difflugians. 
B) radiolarians. 
C) arcellians. 
D) heliozoans. 
E) bacteria. 
A) difflugians. 
B) radiolarians. 
C) arcellians. 
D) heliozoans. 
E) bacteria.

Question 17

An economically important disease of poultry is

Accepted Answer

A) trypanosomiasis. 
B) pebrine. 
C) foul brood. 
D) coccidiosis. 
E) sarcocystitis. 
A) trypanosomiasis. 
B) pebrine. 
C) foul brood. 
D) coccidiosis. 
E) sarcocystitis.

Exam 8: Animal-Like Protists: the Protozoa

Contractile vacuoles in freshwater protozoans function to

The protozoan Trypanosoma brucei is the causal organism of the disease

The pathogenic amoeba that causes dysentery in humans is

__________ occurs in protists when a large number of daughter cells are formed from a single parent cell.

In protists,both gas exchange and excretion occur by __________ across the plasma membrane.

Protozoans in this group are nearly all parasites of humans.

The vectors of Trypanosoma are

In heterotrophic protists,digestion and transport of food occurs in

Pseudopodia that are broad and are used for locomotion and engulfing food are called

In a protist,the portion of the cytoplasm that lies just beneath the plasma membrane is called the

Toxoplasmosis is primarily carried to humans by

Ancient records indicate humans were infected with which parasite?

"Red-tides" are caused by

Egestion vacuoles release their contents by

The common means of sexual reproduction among ciliated protists is

Some of the oldest eukaryotic fossils are

An economically important disease of poultry is

Zoology: an Evolutionary and Ecological Perspective

Cells, tissues, organs, and Organ Systems of Animals

Cell Division and Inheritance

Evolution: History and Evidence

Evolution and Gene Frequencies

Ecology: Preserving the Animal Kingdom

Animal Taxonomy, phylogeny, and Organization

Multicellular and Tissue Levels of Organization

The Smaller Lophotrochozoan Phyla

Molluscan Success

Annelida: the Metameric Body Form

The Smaller Ecdysozoan Phyla

The Arthropods: Blueprint for Success

The Pancrustacea: Crustacea and Hexapoda

Ambulacraria: Echinoderms and Hemichordates

Chordata: Urochordata and Cephalochordata

The Fishes: Vertebrate Success in Water

Amphibians: the First Terrestrial Vertebrates

Reptiles: Diapsid Amniotes

Birds: Reptiles by Another Name

Mammals: Synapsid Amniotes

Protection, support, and Movement

Communication I: Nervous and Sensory Systems

Communication II: the Endocrine System and Chemical Messengers

Circulation and Gas Exchange

Nutrition and Digestion

Temperature and Body Fluid Regulation

Reproduction and Development

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