Question 1

All bacteria are harmful to humans.

Accepted Answer

A) True 
 B)False

Question 2

Why are bacteria able to evolve so quickly?

Accepted Answer

Binary fission is a rapid process. Some

Question 3

Organisms that produce disease are pathogens.

Accepted Answer

A) True 
 B)False

Question 4

Bacterial cell walls contain __________, which makes them different from other organisms.

Accepted Answer

A)  peptidoglycan 
B)  chitin 
C)  pectin 
D)  starch 
E)  cellulose 
A)  peptidoglycan 
B)  chitin 
C)  pectin 
D)  starch 
E)  cellulose

Question 5

Bacteria are able to increase their genetic variability by reproducing sexually.

Accepted Answer

A) True 
 B)False

Question 6

In which of these environments would you normally find prokaryotes?

Accepted Answer

A)  A spoonful of soil 
B)  Human skin 
C)  A single drop of seawater 
D)  An animalʹs intestinal tract 
E)  All of the above 
A)  A spoonful of soil 
B)  Human skin 
C)  A single drop of seawater 
D)  An animalʹs intestinal tract 
E)  All of the above

Question 7

The cause of tetanus is

Accepted Answer

A)  Borrelia burgdorferi. 
B)  Escherichia coli. 
C)  Campylobacter. 
D)  Streptococcus pneumoniae. 
E)  Clostridium tetani. 
A)  Borrelia burgdorferi. 
B)  Escherichia coli. 
C)  Campylobacter. 
D)  Streptococcus pneumoniae. 
E)  Clostridium tetani.

Question 8

Viruses that attack prokaryotes are called

Accepted Answer

A)  prions. 
B)  bacteriophages. 
C)  human pathogens. 
D)  viroids. 
E)  host cells. 
A)  prions. 
B)  bacteriophages. 
C)  human pathogens. 
D)  viroids. 
E)  host cells.

Question 9

Biofilms are the immune systemʹs way to keep pathogens from colonizing a host.

Accepted Answer

A) True 
 B)False

Question 10

Lyme disease is caused by__________ that are transmitted to humans by deer ticks.

Accepted Answer

The answer of Lyme disease is caused by__________ that are...

Question 11

Bacterial endospores are used for

Accepted Answer

A)  bioremediation. 
B)  keeping the bacteria alive under harsh conditions. 
C)  forming biofilms. 
D)  attracting viruses. 
E)  bacterial reproduction. 
A)  bioremediation. 
B)  keeping the bacteria alive under harsh conditions. 
C)  forming biofilms. 
D)  attracting viruses. 
E)  bacterial reproduction.

Question 12

Oil spills are sprayed with bacterial cultures in order to

Accepted Answer

A)  break down the oil. 
B)  kill the bacteria. 
C)  make the oil easier to wash away. 
D)  detoxify the oil. 
E)  prevent the oil from sticking to wildlife. 
A)  break down the oil. 
B)  kill the bacteria. 
C)  make the oil easier to wash away. 
D)  detoxify the oil. 
E)  prevent the oil from sticking to wildlife.

Question 13

__________is the process by which bacteria return nutrients to the soil.

Accepted Answer

The answer of __________is the process by which bacteria return...

Question 14

Many prokaryotes thrive in__________ environments, which lack oxygen.

Accepted Answer

The answer of Many prokaryotes thrive in__________ environments, which lack...

Question 15

AIDS 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 16

Some archaea can live in boiling water.

Accepted Answer

A) True 
 B)False

Question 17

The use of bacteria to break down pollutants is referred to as

Accepted Answer

A)  biofixation. 
B)  nitrogen-fixation. 
C)  biosynthesis. 
D)  bioremediation. 
E)  binary fission. 
A)  biofixation. 
B)  nitrogen-fixation. 
C)  biosynthesis. 
D)  bioremediation. 
E)  binary fission.

Question 18

What differentiates gram-positive bacteria from gram-negative bacteria?

Accepted Answer

A)  The appearance of colonies 
B)  Nutrient requirements 
C)  The way the cell wall stains 
D)  The use of oxygen 
E)  The means of locomotion 
A)  The appearance of colonies 
B)  Nutrient requirements 
C)  The way the cell wall stains 
D)  The use of oxygen 
E)  The means of locomotion

Question 19

The classifications gram-positive and gram-negative are based on__________ of the bacterial cell wall.

Accepted Answer

The answer of The classifications gram-positive and gram-negative are based...

Question 20

The oldest endospores to be revived and cultured to produce live bacteria are

Accepted Answer

A)  250 million years old. 
B)  250,000 years old. 
C)  2,500 years old. 
D)  25,000 years old. 
E)  250 years old. 
A)  250 million years old. 
B)  250,000 years old. 
C)  2,500 years old. 
D)  25,000 years old. 
E)  250 years old.

Exam 20: The Diversity of Prokaryotes and Viruses

All bacteria are harmful to humans.

Why are bacteria able to evolve so quickly?

Organisms that produce disease are pathogens.

Bacterial cell walls contain __________, which makes them different from other organisms.

Bacteria are able to increase their genetic variability by reproducing sexually.

In which of these environments would you normally find prokaryotes?

The cause of tetanus is

Viruses that attack prokaryotes are called

Biofilms are the immune systemʹs way to keep pathogens from colonizing a host.

Lyme disease is caused by__________ that are transmitted to humans by deer ticks.

Bacterial endospores are used for

Oil spills are sprayed with bacterial cultures in order to

__________is the process by which bacteria return nutrients to the soil.

Many prokaryotes thrive in__________ environments, which lack oxygen.

AIDS is caused by a

Some archaea can live in boiling water.

The use of bacteria to break down pollutants is referred to as

What differentiates gram-positive bacteria from gram-negative bacteria?

The classifications gram-positive and gram-negative are based on__________ of the bacterial cell wall.

The oldest endospores to be revived and cultured to produce live bacteria are

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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