Question 1

The early development of a globular colony (with flagella inward)that then turns inside-out (with flagella outward)is

Accepted Answer

A)  called an undulating membrane and is common among ciliates. 
B)  a pseudoplasmodium and only found in protozoans. 
C)  called inversion, and it is very common in early development in many animal groups. 
D)  called inversion, and it is very rare among animals, only occurring in colonial flagellates and sponges. 
E)  called reverse gastrulation and it is very rare among animals. 
A)  called an undulating membrane and is common among ciliates. 
B)  a pseudoplasmodium and only found in protozoans. 
C)  called inversion, and it is very common in early development in many animal groups. 
D)  called inversion, and it is very rare among animals, only occurring in colonial flagellates and sponges. 
E)  called reverse gastrulation and it is very rare among animals.

Question 2

When the haploid cells or pronuclei are borne in equal-sized cells that look alike,they are called what?

Accepted Answer

A)  anisogametes 
B)  syngametes 
C)  autogametes 
D)  unigametes 
E)  isogametes 
A)  anisogametes 
B)  syngametes 
C)  autogametes 
D)  unigametes 
E)  isogametes

Question 3

Some organisms undergo meiosis to produce gametes that fuse to form a zygote internally without leaving the organism.What is the effect of this process on genetic diversity of the offspring?

Accepted Answer

A)  The offspring would be identical clones of the parent. 
B)  The offspring could vary from the parent but there would be less genetic variation because this is inbreeding. 
C)  The offspring would vary from the parent because it would produce different recombinations of each chromosome pair. 
D)  The offspring would become more and more genetically diverse each generation. 
E)  None of the choices are correct. 
A)  The offspring would be identical clones of the parent. 
B)  The offspring could vary from the parent but there would be less genetic variation because this is inbreeding. 
C)  The offspring would vary from the parent because it would produce different recombinations of each chromosome pair. 
D)  The offspring would become more and more genetically diverse each generation. 
E)  None of the choices are correct.

Question 4

Which of the following is NOT a correct description of how the cytoplasm moves in pseudopodia?

Accepted Answer

A)  Actin filaments become cross-linked by an actin-binding protein forming a semisolid gel-like state called ectoplasm. 
B)  The nucleus codes for each movement using DNA and protein formation. 
C)  Interaction with lipids in the cell membrane releases actin subunits and allows them to polymerize into actin microfilaments. 
D)  Near the edge of the gel, calcium ions activate an actin-binding protein that releases the actin filaments from the gel. 
E)  Myosin pulling on the edge of the gel causes contraction that forces endoplasm toward the hyaline cap. 
A)  Actin filaments become cross-linked by an actin-binding protein forming a semisolid gel-like state called ectoplasm. 
B)  The nucleus codes for each movement using DNA and protein formation. 
C)  Interaction with lipids in the cell membrane releases actin subunits and allows them to polymerize into actin microfilaments. 
D)  Near the edge of the gel, calcium ions activate an actin-binding protein that releases the actin filaments from the gel. 
E)  Myosin pulling on the edge of the gel causes contraction that forces endoplasm toward the hyaline cap.

Question 5

Which is NOT a correct description of a member of a protozoan group?

Accepted Answer

A)  usually motile 
B)  development involves an embryonic stage 
C)  small; about 21,000 micrometers in size 
D)  usually unicellular; if multicellular, without somatic differentiation 
E)  All of the choices are correct 
A)  usually motile 
B)  development involves an embryonic stage 
C)  small; about 21,000 micrometers in size 
D)  usually unicellular; if multicellular, without somatic differentiation 
E)  All of the choices are correct

Question 6

Chalky fossils that formed the White Cliffs of Dover were produced by

Accepted Answer

A)  radiolarians. 
B)  foraminiferans. 
C)  ciliates. 
D)  diatoms (as diatomaceous earth). 
E)  dinoflagellates. 
A)  radiolarians. 
B)  foraminiferans. 
C)  ciliates. 
D)  diatoms (as diatomaceous earth). 
E)  dinoflagellates.

Question 7

Explain the scientific reasoning behind the reorganization of the "Protozoa." Why is this important?

Accepted Answer

The reorganization of the "Protozoa" is

Question 8

Discuss the molecular evidence that has allowed protozoologists to completely revise our concepts of unicellular eukaryote phylogeny.

Accepted Answer

The molecular evidence that has allowed

Question 9

Which unicellular eukaryote is NOT correctly linked to the type of movement structure it possesses?

Accepted Answer

A)  Amoeboids-pseudopodia 
B)  Ciliates-cilia 
C)  Dinoflagellates-flagella 
D)  Paramecium-flexibility of the pellicle 
E)  Apicomplexa-reticulopodia 
A)  Amoeboids-pseudopodia 
B)  Ciliates-cilia 
C)  Dinoflagellates-flagella 
D)  Paramecium-flexibility of the pellicle 
E)  Apicomplexa-reticulopodia

Question 10

The macronucleus of a ciliate elongates,constricts and divides without going through the mitotic stages 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 11

A sporozoan parasite of cats that can cause birth defects in humans is called _________ ________.

Accepted Answer

The answer of A sporozoan parasite of cats that can...

Question 12

How does the mosquito transmit malaria from an ill person to a healthy person?

Accepted Answer

A)  Plasmodium is taken up from one person's blood and squirted back out into the next person. 
B)  Plasmodium gametocytes are taken up from one person's blood and cross into the saliva duct to be reinjected into the next person. 
C)  Plasmodium gametocytes are taken up from one person's blood, fuse to form a zygote that becomes a motile ookinete that enters the saliva ducts. 
D)  Plasmodium gametocytes are taken up from one person's blood, fuse to form a zygote that becomes a motile ookinete, that crosses the stomach wall, forms an oocyst that undergoes sporogony and the sporozoites then migrate to the saliva ducts to be injected into the human host. 
E)  Plasmodium gametocytes are sucked from one person's blood, form an oocyst that undergoes sporogony and the sporozoites migrate across the stomach lining to the saliva ducts. 
A)  Plasmodium is taken up from one person's blood and squirted back out into the next person. 
B)  Plasmodium gametocytes are taken up from one person's blood and cross into the saliva duct to be reinjected into the next person. 
C)  Plasmodium gametocytes are taken up from one person's blood, fuse to form a zygote that becomes a motile ookinete that enters the saliva ducts. 
D)  Plasmodium gametocytes are taken up from one person's blood, fuse to form a zygote that becomes a motile ookinete, that crosses the stomach wall, forms an oocyst that undergoes sporogony and the sporozoites then migrate to the saliva ducts to be injected into the human host. 
E)  Plasmodium gametocytes are sucked from one person's blood, form an oocyst that undergoes sporogony and the sporozoites migrate across the stomach lining to the saliva ducts.

Question 13

When a nucleus has chromatin that is clumped,leaving clear areas within the nucleus,the appearance is described as

Accepted Answer

A)  pellicular. 
B)  vesicular. 
C)  micronuclear. 
D)  kinetosomic. 
E)  spicular. 
A)  pellicular. 
B)  vesicular. 
C)  micronuclear. 
D)  kinetosomic. 
E)  spicular.

Question 14

What are long,thin pseudopodia supported by axial rods of microtubules called?

Accepted Answer

A)  lobopodia 
B)  filopodia 
C)  axopodia 
D)  reticulopodia 
E)  actinopodia 
A)  lobopodia 
B)  filopodia 
C)  axopodia 
D)  reticulopodia 
E)  actinopodia

Question 15

Mosquitoes that transmit malaria pick up what stage(s)when feeding on the blood of a patient ill with malaria?

Accepted Answer

A)  microgametocytes and macrogametocytes that mature into gametes in the insect host 
B)  sporozoites from the oocysts 
C)  merozoites that escape from the red blood cells 
D)  hemozoin stored in red blood cells 
E)  trophozoites in red blood cells 
A)  microgametocytes and macrogametocytes that mature into gametes in the insect host 
B)  sporozoites from the oocysts 
C)  merozoites that escape from the red blood cells 
D)  hemozoin stored in red blood cells 
E)  trophozoites in red blood cells

Question 16

Which protozoan is used to test hypotheses of how multicellular organisms arose from their closest unicellular relatives?

Accepted Answer

A)  microsporidians 
B)  choanoflagellates 
C)  opalinids 
D)  retortamonads 
E)  kinetoplastans 
A)  microsporidians 
B)  choanoflagellates 
C)  opalinids 
D)  retortamonads 
E)  kinetoplastans

Exam 11: Unicellular Eukaryotes

The early development of a globular colony (with flagella inward)that then turns inside-out (with flagella outward)is

When the haploid cells or pronuclei are borne in equal-sized cells that look alike,they are called what?

Some organisms undergo meiosis to produce gametes that fuse to form a zygote internally without leaving the organism.What is the effect of this process on genetic diversity of the offspring?

Which of the following is NOT a correct description of how the cytoplasm moves in pseudopodia?

Which is NOT a correct description of a member of a protozoan group?

Chalky fossils that formed the White Cliffs of Dover were produced by

Explain the scientific reasoning behind the reorganization of the "Protozoa." Why is this important?

Discuss the molecular evidence that has allowed protozoologists to completely revise our concepts of unicellular eukaryote phylogeny.

Which unicellular eukaryote is NOT correctly linked to the type of movement structure it possesses?

The macronucleus of a ciliate elongates,constricts and divides without going through the mitotic stages in a process called what?

A sporozoan parasite of cats that can cause birth defects in humans is called _________ ________.

How does the mosquito transmit malaria from an ill person to a healthy person?

When a nucleus has chromatin that is clumped,leaving clear areas within the nucleus,the appearance is described as

What are long,thin pseudopodia supported by axial rods of microtubules called?

Mosquitoes that transmit malaria pick up what stage(s)when feeding on the blood of a patient ill with malaria?

Which protozoan is used to test hypotheses of how multicellular organisms arose from their closest unicellular relatives?

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

Filters

A sporozoan parasite of cats that can cause birth defects in humans is called _ .