Question 1

Avocado sunblotch is caused by a

Accepted Answer

A)  bacterium. 
B)  prion. 
C)  virus. 
D)  viroid. 
E)  fungus. 
A)  bacterium. 
B)  prion. 
C)  virus. 
D)  viroid. 
E)  fungus. D

Question 2

Bacteria lack membrane-bound organelles.

Accepted Answer

A) True 
 B)False  True

Question 3

Kuru is caused by one of the archaea.

Accepted Answer

A) True 
 B)False  False

Question 4

For which of the following diseases or conditions should antibiotics be used?

Accepted Answer

A)  AIDS (to combat HIV) 
B)  Mad cow disease 
C)  Lyme disease 
D)  A common cold 
E)  Smallpox 
A)  AIDS (to combat HIV) 
B)  Mad cow disease 
C)  Lyme disease 
D)  A common cold 
E)  Smallpox

Question 5

The largest prokaryote is______ .

Accepted Answer

The answer of The largest prokaryote is______ ....

Question 6

Humans can eat live cultures of some bacteria without getting sick.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is NOT alive?

Accepted Answer

A)  Bacterium 
B)  Protist 
C)  Cyanobacterium 
D)  Virus 
E)  Plant 
A)  Bacterium 
B)  Protist 
C)  Cyanobacterium 
D)  Virus 
E)  Plant

Question 8

Which of the following causes infectious sores on the mucous membranes of the mouth that occur during times of stress?

Accepted Answer

A)  Prions 
B)  Bacillus anthracis 
C)  Listeria 
D)  Escherichia 
E)  Herpes virus 
A)  Prions 
B)  Bacillus anthracis 
C)  Listeria 
D)  Escherichia 
E)  Herpes virus

Question 9

Creutzfeldt-Jakob disease is caused by a

Accepted Answer

A)  bacterium. 
B)  prion. 
C)  virus. 
D)  viroid. 
E)  fungus. 
A)  bacterium. 
B)  prion. 
C)  virus. 
D)  viroid. 
E)  fungus.

Question 10

Intestinal bacteria are necessary for plant-eating animals to digest

Accepted Answer

A)  carbon dioxide. 
B)  cellulose. 
C)  lipids. 
D)  nitrogen. 
E)  proteins. 
A)  carbon dioxide. 
B)  cellulose. 
C)  lipids. 
D)  nitrogen. 
E)  proteins.

Question 11

Prions are

Accepted Answer

A)  viral protein coats. 
B)  sexually transmitted bacteria. 
C)  bacterial proteins. 
D)  also known as viroids. 
E)  improperly folded proteins. 
A)  viral protein coats. 
B)  sexually transmitted bacteria. 
C)  bacterial proteins. 
D)  also known as viroids. 
E)  improperly folded proteins.

Question 12

While examining a hot spring, you find something you havenʹt seen before. It has a cell membrane, but the cell wall lacks peptidoglycan. It contains both DNA and RNA. The DNA is circular. It would be classified as a(n)

Accepted Answer

A)  archaea. 
B)  bacterium. 
C)  prion. 
D)  virus. 
E)  fungus. 
A)  archaea. 
B)  bacterium. 
C)  prion. 
D)  virus. 
E)  fungus.

Question 13

Through which process are bacteria able to exchange genetic material?

Accepted Answer

A)  Endospore formation 
B)  Sexual reproduction 
C)  Anaerobic respiration 
D)  Photosynthesis 
E)  Conjugation 
A)  Endospore formation 
B)  Sexual reproduction 
C)  Anaerobic respiration 
D)  Photosynthesis 
E)  Conjugation

Question 14

Which of the following has no organelles, ribosomes, or cytoplasm?

Accepted Answer

A)  An alga 
B)  A cyanobacterium 
C)  A plant 
D)  A virus 
E)  A bacterium 
A)  An alga 
B)  A cyanobacterium 
C)  A plant 
D)  A virus 
E)  A bacterium

Question 15

A virus basically consists of

Accepted Answer

A)  RNA or DNA and a protein coat. 
B)  enzymes and a protein coat. 
C)  RNA or DNA and enzymes. 
D)  proteins and a cell membrane. 
E)  RNA or DNA and a membrane. 
A)  RNA or DNA and a protein coat. 
B)  enzymes and a protein coat. 
C)  RNA or DNA and enzymes. 
D)  proteins and a cell membrane. 
E)  RNA or DNA and a membrane.

Question 16

__________are used in the production of foods such as yogurt, cheese, and sauerkraut.

Accepted Answer

A)  Eukaryotes 
B)  Viruses 
C)  Viroids 
D)  Protists 
E)  Bacteria 
A)  Eukaryotes 
B)  Viruses 
C)  Viroids 
D)  Protists 
E)  Bacteria

Question 17

Mutations that improve the survival and reproduction of organisms, and thus contribute to the evolution of species, arise rapidly in prokaryotes due to their

Accepted Answer

A)  cell wall composition. 
B)  absence of a nucleus. 
C)  rapid rate of cell division. 
D)  sexual reproduction. 
E)  anaerobic metabolism. 
A)  cell wall composition. 
B)  absence of a nucleus. 
C)  rapid rate of cell division. 
D)  sexual reproduction. 
E)  anaerobic metabolism.

Question 18

Herpes is caused by a

Accepted Answer

A)  bacterium. 
B)  prion. 
C)  virus. 
D)  viroid. 
E)  fungus. 
A)  bacterium. 
B)  prion. 
C)  virus. 
D)  viroid. 
E)  fungus.

Question 19

Assume a genetic analysis of a sick animalʹs DNA indicates that part of one chromosome does not belong to the animal. It is foreign DNA and is not similar to any of the animalʹs normal genes. It most likely comes from a(n)

Accepted Answer

A)  fungal infection. 
B)  viral infection. 
C)  bacterial infection. 
D)  archaeal infection. 
E)  prion infection. 
A)  fungal infection. 
B)  viral infection. 
C)  bacterial infection. 
D)  archaeal infection. 
E)  prion infection.

Question 20

Smallpox is caused by infected rats.

Accepted Answer

A) True 
 B)False

Exam 20: The Diversity of Prokaryotes and Viruses

Avocado sunblotch is caused by a

Bacteria lack membrane-bound organelles.

Kuru is caused by one of the archaea.

For which of the following diseases or conditions should antibiotics be used?

The largest prokaryote is______ .

Humans can eat live cultures of some bacteria without getting sick.

Which of the following is NOT alive?

Which of the following causes infectious sores on the mucous membranes of the mouth that occur during times of stress?

Creutzfeldt-Jakob disease is caused by a

Intestinal bacteria are necessary for plant-eating animals to digest

Prions are

While examining a hot spring, you find something you havenʹt seen before. It has a cell membrane, but the cell wall lacks peptidoglycan. It contains both DNA and RNA. The DNA is circular. It would be classified as a(n)

Through which process are bacteria able to exchange genetic material?

Which of the following has no organelles, ribosomes, or cytoplasm?

A virus basically consists of

__________are used in the production of foods such as yogurt, cheese, and sauerkraut.

Mutations that improve the survival and reproduction of organisms, and thus contribute to the evolution of species, arise rapidly in prokaryotes due to their

Herpes is caused by a

Assume a genetic analysis of a sick animalʹs DNA indicates that part of one chromosome does not belong to the animal. It is foreign DNA and is not similar to any of the animalʹs normal genes. It most likely comes from a(n)

Smallpox is caused by infected rats.

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

DNA: The Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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