Question 1

Nutrition in unicellular eukaryotes is best described as

Accepted Answer

A)  autotrophic. 
B)  heterotrophic. 
C)  saprozoic. 
D)  All of the choices are correct. 
E)  None of the choices are correct. 
A)  autotrophic. 
B)  heterotrophic. 
C)  saprozoic. 
D)  All of the choices are correct. 
E)  None of the choices are correct.

Question 2

Which of the following represents the arrangement of microtubules in axonemes of cilia?

Accepted Answer

A)  nine peripheral triplets of microtubules 
B)  nine peripheral pairs of microtubules plus one central pair 
C)  nine peripheral triplets of microtubules plus one central pair 
D)  nine peripheral pairs of microtubules plus two central pairs 
E)  three peripheral pairs of microtubules and no central pairs 
A)  nine peripheral triplets of microtubules 
B)  nine peripheral pairs of microtubules plus one central pair 
C)  nine peripheral triplets of microtubules plus one central pair 
D)  nine peripheral pairs of microtubules plus two central pairs 
E)  three peripheral pairs of microtubules and no central pairs

Question 3

Usually we expect fission to produce two cells from one,but in Sporozoea and some Sarcodina,multiple fission of the nucleus is followed by rapid division of cytoplasm,releasing many new individuals immediately in a process called what?

Accepted Answer

A)  amitosis 
B)  budding 
C)  syngamy 
D)  autogamy 
E)  sporogony 
A)  amitosis 
B)  budding 
C)  syngamy 
D)  autogamy 
E)  sporogony

Question 4

After phagocytosis,a food particle is held in a food vacuole also called a/an _____________________.

Accepted Answer

The answer of After phagocytosis,a food particle is held in...

Question 5

What is found at the base of every flagellum or cilium?

Accepted Answer

A)  a kinetosome 
B)  a kinetid 
C)  an axopod 
D)  a kinetoplast 
E)  a lobopod 
A)  a kinetosome 
B)  a kinetid 
C)  an axopod 
D)  a kinetoplast 
E)  a lobopod

Question 6

The most correct usage of the term "protozoa" is as a(n)

Accepted Answer

A)  phylum. 
B)  class. 
C)  separate kingdom. 
D)  synonym for Protista. 
E)  informal cluster of groups with complicated and uncertain phyletic relationships. 
A)  phylum. 
B)  class. 
C)  separate kingdom. 
D)  synonym for Protista. 
E)  informal cluster of groups with complicated and uncertain phyletic relationships.

Question 7

What is the specific structure in ciliates that serves as the site of expulsion for wastes called?

Accepted Answer

A)  phagosome 
B)  lysosome 
C)  cytostome 
D)  cytoproct 
E)  paramylon body 
A)  phagosome 
B)  lysosome 
C)  cytostome 
D)  cytoproct 
E)  paramylon body

Question 8

Protist reproduction

Accepted Answer

A)  is always asexual and usually binary fission. 
B)  is always sexual with the adults being haploid. 
C)  is always sexual with the adults being diploid. 
D)  is always sexual with alternation of haploid and diploid generations. 
E)  may be asexual or any of the above sexual cycles. 
A)  is always asexual and usually binary fission. 
B)  is always sexual with the adults being haploid. 
C)  is always sexual with the adults being diploid. 
D)  is always sexual with alternation of haploid and diploid generations. 
E)  may be asexual or any of the above sexual cycles.

Question 9

Which describes the mode of action of the causative agent of amebic dysentery?

Accepted Answer

A)  It invades the liver and destroys its function, thus altering the digestive system. 
B)  It ruptures large numbers of red blood cells and the increased fluids are lost across the intestine. 
C)  It invades the intestinal lining and secretes enzymes that cause loss of fluid; it can also cause abscesses on the liver and other organs. 
D)  It invades the brain and destroys the control center that regulates intestinal movement of food. 
E)  All of the choices are correct. 
A)  It invades the liver and destroys its function, thus altering the digestive system. 
B)  It ruptures large numbers of red blood cells and the increased fluids are lost across the intestine. 
C)  It invades the intestinal lining and secretes enzymes that cause loss of fluid; it can also cause abscesses on the liver and other organs. 
D)  It invades the brain and destroys the control center that regulates intestinal movement of food. 
E)  All of the choices are correct.

Question 10

"Red tides" are caused by massive blooms of

Accepted Answer

A)  sporozoans. 
B)  dinoflagellates. 
C)  Euglena. 
D)  ciliates. 
E)  Plasmodia. 
A)  sporozoans. 
B)  dinoflagellates. 
C)  Euglena. 
D)  ciliates. 
E)  Plasmodia.

Question 11

Cilia or flagella are resorbed and the Golgi apparatus secretes wall material during

Accepted Answer

A)  formation of a contractile vacuole. 
B)  intermediary meiosis. 
C)  conjugation. 
D)  pseudopod streaming. 
E)  encystment. 
A)  formation of a contractile vacuole. 
B)  intermediary meiosis. 
C)  conjugation. 
D)  pseudopod streaming. 
E)  encystment.

Question 12

The Clade (Superphylum)Alveolata contains three phyla: Apicomplexa,Ciliophora,and Dinoflagellata.What are their shared characteristics and why are they placed in this superphylum?

Accepted Answer

The three phyla within the Clade (Superp

Question 13

The strange case of organisms that undergo meiosis after fertilization and live out their adult life in the haploid state is a case of what?

Accepted Answer

A)  syngamy 
B)  zygotic meiosis 
C)  gametic meiosis 
D)  autogamy 
E)  conjugation 
A)  syngamy 
B)  zygotic meiosis 
C)  gametic meiosis 
D)  autogamy 
E)  conjugation

Question 14

Foraminiferans are protozoans that form complex,many-chambered tests composed of _____________.

Accepted Answer

The answer of Foraminiferans are protozoans that form complex,many-chambered tests...

Question 15

Small spined extrusomes in ciliate protozoa that are discharged apparently to aid in the capture of prey or to serve as a defensive mechanism are called ______________.

Accepted Answer

The answer of Small spined extrusomes in ciliate protozoa that...

Question 16

The protozoan group that contains only endoparasitic forms is the ____________________.

Accepted Answer

The answer of The protozoan group that contains only endoparasitic...

Question 17

Ectoplasm

Accepted Answer

A)  provides the vital force of life. 
B)  is cytoplasm that is outside the cell membrane of protozoans. 
C)  is only found in parasitic amebas. 
D)  is only found in spores of parasitic protozoans. 
E)  contrasts with endoplasm; both ectoplasm and endoplasm are cytoplasmic components. 
A)  provides the vital force of life. 
B)  is cytoplasm that is outside the cell membrane of protozoans. 
C)  is only found in parasitic amebas. 
D)  is only found in spores of parasitic protozoans. 
E)  contrasts with endoplasm; both ectoplasm and endoplasm are cytoplasmic components.

Question 18

Perhaps half of the U.S.population is infected with this organism that normally resides in tissue cysts containing bradyozoites; embryos of pregnant women are also at risk.

Accepted Answer

A)  Amoeba proteus 
B)  Plasmodium vivax 
C)  Toxoplasma gondii 
D)  Trypanosoma cruzi 
E)  Entamoeba histolytica 
A)  Amoeba proteus 
B)  Plasmodium vivax 
C)  Toxoplasma gondii 
D)  Trypanosoma cruzi 
E)  Entamoeba histolytica

Question 19

Which is an example of a Ciliophoran protozoa?

Accepted Answer

A)  Amoeba 
B)  Trypanosoma 
C)  Paramecium 
D)  Plasmodium 
E)  Giardia 
A)  Amoeba 
B)  Trypanosoma 
C)  Paramecium 
D)  Plasmodium 
E)  Giardia

Question 20

Gametic nuclei arising by meiosis and forming a zygote within the same organism that produced them is a process called ___________.

Accepted Answer

The answer of Gametic nuclei arising by meiosis and forming...

Exam 11: Unicellular Eukaryotes

Nutrition in unicellular eukaryotes is best described as

Which of the following represents the arrangement of microtubules in axonemes of cilia?

Usually we expect fission to produce two cells from one,but in Sporozoea and some Sarcodina,multiple fission of the nucleus is followed by rapid division of cytoplasm,releasing many new individuals immediately in a process called what?

After phagocytosis,a food particle is held in a food vacuole also called a/an _____________________.

What is found at the base of every flagellum or cilium?

The most correct usage of the term "protozoa" is as a(n)

What is the specific structure in ciliates that serves as the site of expulsion for wastes called?

Protist reproduction

Which describes the mode of action of the causative agent of amebic dysentery?

"Red tides" are caused by massive blooms of

Cilia or flagella are resorbed and the Golgi apparatus secretes wall material during

The Clade (Superphylum)Alveolata contains three phyla: Apicomplexa,Ciliophora,and Dinoflagellata.What are their shared characteristics and why are they placed in this superphylum?

The strange case of organisms that undergo meiosis after fertilization and live out their adult life in the haploid state is a case of what?

Foraminiferans are protozoans that form complex,many-chambered tests composed of _____________.

Small spined extrusomes in ciliate protozoa that are discharged apparently to aid in the capture of prey or to serve as a defensive mechanism are called ______________.

The protozoan group that contains only endoparasitic forms is the ____________________.

Ectoplasm

Perhaps half of the U.S.population is infected with this organism that normally resides in tissue cysts containing bradyozoites; embryos of pregnant women are also at risk.

Which is an example of a Ciliophoran protozoa?

Gametic nuclei arising by meiosis and forming a zygote within the same organism that produced them is a process called ___________.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

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