Question 1

Haploid cells that are unequal in size,such as sperm and egg,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 A

Question 2

Which of the following is/are correct descriptions of unicellular eukaryote characteristics?

Accepted Answer

A)  As primitive organisms, they are restricted to asexual reproduction. 
B)  No germ layers are ever formed. 
C)  They are all aquatic. 
D)  When found in other organisms, they are typically parasitic or pathogenic. 
E)  They all lack symmetry. 
A)  As primitive organisms, they are restricted to asexual reproduction. 
B)  No germ layers are ever formed. 
C)  They are all aquatic. 
D)  When found in other organisms, they are typically parasitic or pathogenic. 
E)  They all lack symmetry. B

Question 3

A protozoan with both plant-like photosynthesis and animal-like motility is most likely a

Accepted Answer

A)  sporozoan. 
B)  dinoflagellate. 
C)  euglenoid. 
D)  zooflagellate. 
E)  ciliate. 
A)  sporozoan. 
B)  dinoflagellate. 
C)  euglenoid. 
D)  zooflagellate. 
E)  ciliate. C

Question 4

Protozoans in the genus Trypanosoma cause

Accepted Answer

A)  malaria in both humans and birds. 
B)  amebic dysentery and intestinal ailments. 
C)  African sleeping sickness and Chagas disease. 
D)  birth defects if infecting a woman at the appropriate stage of pregnancy. 
E)  Toxoplasmosis, often contracted from cats. 
A)  malaria in both humans and birds. 
B)  amebic dysentery and intestinal ailments. 
C)  African sleeping sickness and Chagas disease. 
D)  birth defects if infecting a woman at the appropriate stage of pregnancy. 
E)  Toxoplasmosis, often contracted from cats.

Question 5

When a protozoan alternates between haploid and diploid generations,as occurs in most plants,it is called

Accepted Answer

A)  zygotic meiosis. 
B)  gametic meiosis. 
C)  intermediary meiosis. 
D)  mitotic meiosis. 
E)  parthenogenesis. 
A)  zygotic meiosis. 
B)  gametic meiosis. 
C)  intermediary meiosis. 
D)  mitotic meiosis. 
E)  parthenogenesis.

Question 6

The great pyramids of Egypt are made from stone formed from fossil

Accepted Answer

A)  radiolarians. 
B)  foraminiferans. 
C)  heliozoans. 
D)  snails. 
E)  endoparasitic amoeboids of insects. 
A)  radiolarians. 
B)  foraminiferans. 
C)  heliozoans. 
D)  snails. 
E)  endoparasitic amoeboids of insects.

Question 7

Generally,the human body creates antibodies in response to foreign substances that invade our blood or interstitial spaces.How can the malaria organism continue to survive in the human host to cause chills and fevers for years; that is,why do we not build up an immunity in a week or so?

Accepted Answer

The malaria organism, specifically the P

Question 8

Osmoregulation in some protozoa is carried out chiefly by a structure called a/an __________ ___________.

Accepted Answer

The answer of Osmoregulation in some protozoa is carried out...

Question 9

Which of the following is NOT a "ciliate?"

Accepted Answer

A)  Paramecium 
B)  Stentor 
C)  Vorticella 
D)  Trichodina 
E)  All of the choices are classified as ciliates. 
A)  Paramecium 
B)  Stentor 
C)  Vorticella 
D)  Trichodina 
E)  All of the choices are classified as ciliates.

Question 10

Which is a member of the apicomplexan group of protists?

Accepted Answer

A)  Amoeba proteus 
B)  Plasmodium vivax 
C)  Chlamydomonas 
D)  Trypanosoma 
E)  Paramecium 
A)  Amoeba proteus 
B)  Plasmodium vivax 
C)  Chlamydomonas 
D)  Trypanosoma 
E)  Paramecium

Question 11

The strange case of organisms that undergo meiosis to produce gametes that fuse to form a zygote internally without leaving the organism is a process called 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 12

Members of Euglena have starch-like food storage material in the form of what?

Accepted Answer

A)  stigmata 
B)  chloroplasts 
C)  paramylon bodies 
D)  flagellar bodies 
E)  kinetosomes 
A)  stigmata 
B)  chloroplasts 
C)  paramylon bodies 
D)  flagellar bodies 
E)  kinetosomes

Question 13

If you grow Euglena in a jar,and mask off all but a slit of light,they soon congregate at the slit.If you completely cover the jar and prevent exposure to light,they convert to heterotrophy.How are these organisms and these traits problematic for systematists?

Accepted Answer

These traits of Euglena can be problemat

Question 14

A Paramecium "knows" when it has encountered a noxious substance and backs off to veer away.As a one-celled organism,how does it "know" to do this?

Accepted Answer

A)  The macronucleus has DNA coding that determines this reaction. 
B)  The micronucleus is dedicated to controlling just such responses. 
C)  This cell is essentially a small neuron, or nerve cell. 
D)  This is a rather simple stimulus that changes the electrical potential difference across the cell membrane and depolarization of the membrane results in cilia reversing their direction of beating. 
E)  None of the choices are correct. 
A)  The macronucleus has DNA coding that determines this reaction. 
B)  The micronucleus is dedicated to controlling just such responses. 
C)  This cell is essentially a small neuron, or nerve cell. 
D)  This is a rather simple stimulus that changes the electrical potential difference across the cell membrane and depolarization of the membrane results in cilia reversing their direction of beating. 
E)  None of the choices are correct.

Question 15

To what extent are the cells of a colonial Volvox specialized?rev: 03_26_2014_QC_47370

Accepted Answer

A)  The cells of Volvox are not specialized at all; all are equivalent in function and to be otherwise would make them like those of the metazoa. 
B)  Somatic cells function in nutrition and locomotion while a few "germ" cells carry out reproduction. 
C)  Germ cells specialize in locomotion, others in nutrition, and others in reproduction. 
D)  Volvox is like two organisms living together symbiotically: one set of cells handles nutrition and locomotion and reproduce their type; another type of cell handles sexual reproduction and reproduce their type. 
E)  A Volvox cell alternates between first being somatic, then being reproductive. 
A)  The cells of Volvox are not specialized at all; all are equivalent in function and to be otherwise would make them like those of the metazoa. 
B)  Somatic cells function in nutrition and locomotion while a few "germ" cells carry out reproduction. 
C)  Germ cells specialize in locomotion, others in nutrition, and others in reproduction. 
D)  Volvox is like two organisms living together symbiotically: one set of cells handles nutrition and locomotion and reproduce their type; another type of cell handles sexual reproduction and reproduce their type. 
E)  A Volvox cell alternates between first being somatic, then being reproductive.

Question 16

Compared to metazoans,what is the correct perspective on cellular organization of unicellular eukaryotes?

Accepted Answer

A)  They are comparatively simpler with fewer structures or organelles than the metazoans. 
B)  They are more limited in their organization and function than a metazoan cell. 
C)  They are equivalent, no more complex nor simpler. 
D)  They are complex and must accomplish within a cell the functions that several specialized cells accomplish in metazoa. 
E)  None of the choices are correct. 
A)  They are comparatively simpler with fewer structures or organelles than the metazoans. 
B)  They are more limited in their organization and function than a metazoan cell. 
C)  They are equivalent, no more complex nor simpler. 
D)  They are complex and must accomplish within a cell the functions that several specialized cells accomplish in metazoa. 
E)  None of the choices are correct.

Question 17

What happens during conjugation in most ciliates?

Accepted Answer

A)  Haploid micronuclei are exchanged. 
B)  Macronuclei are formed. 
C)  Binary fission occurs. 
D)  The micronuclei disappear. 
A)  Haploid micronuclei are exchanged. 
B)  Macronuclei are formed. 
C)  Binary fission occurs. 
D)  The micronuclei disappear.

Question 18

Describe the different classification provided by botanists and zoologists for the same organisms,the algae.Explain why this situation exists.Does it make sense in the light of evolutionary theory?

Accepted Answer

Botanists and zoologists classify algae

Question 19

Some species of slime molds form a large,multinucleate body called a/an _________________.

Accepted Answer

The answer of Some species of slime molds form a...

Question 20

The various species of Plasmodium vary in

Accepted Answer

A)  their incubation period. 
B)  the intensity of their physical symptoms. 
C)  the number of times they initiate schizogony in liver cells. 
D)  mortality, or risk of death, to the human host. 
E)  All of the choices are variables in Plasmodium. 
A)  their incubation period. 
B)  the intensity of their physical symptoms. 
C)  the number of times they initiate schizogony in liver cells. 
D)  mortality, or risk of death, to the human host. 
E)  All of the choices are variables in Plasmodium.

Exam 11: Unicellular Eukaryotes

Haploid cells that are unequal in size,such as sperm and egg,are called what?

Which of the following is/are correct descriptions of unicellular eukaryote characteristics?

A protozoan with both plant-like photosynthesis and animal-like motility is most likely a

Protozoans in the genus Trypanosoma cause

When a protozoan alternates between haploid and diploid generations,as occurs in most plants,it is called

The great pyramids of Egypt are made from stone formed from fossil

Generally,the human body creates antibodies in response to foreign substances that invade our blood or interstitial spaces.How can the malaria organism continue to survive in the human host to cause chills and fevers for years; that is,why do we not build up an immunity in a week or so?

Osmoregulation in some protozoa is carried out chiefly by a structure called a/an __________ ___________.

Which of the following is NOT a "ciliate?"

Which is a member of the apicomplexan group of protists?

The strange case of organisms that undergo meiosis to produce gametes that fuse to form a zygote internally without leaving the organism is a process called what?

Members of Euglena have starch-like food storage material in the form of what?

If you grow Euglena in a jar,and mask off all but a slit of light,they soon congregate at the slit.If you completely cover the jar and prevent exposure to light,they convert to heterotrophy.How are these organisms and these traits problematic for systematists?

A Paramecium "knows" when it has encountered a noxious substance and backs off to veer away.As a one-celled organism,how does it "know" to do this?

To what extent are the cells of a colonial Volvox specialized?rev: 03_26_2014_QC_47370

Compared to metazoans,what is the correct perspective on cellular organization of unicellular eukaryotes?

What happens during conjugation in most ciliates?

Describe the different classification provided by botanists and zoologists for the same organisms,the algae.Explain why this situation exists.Does it make sense in the light of evolutionary theory?

Some species of slime molds form a large,multinucleate body called a/an _________________.

The various species of Plasmodium vary in

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

Osmoregulation in some protozoa is carried out chiefly by a structure called a/an _.