Question 1

In which of these environments would you normally find prokaryotes?

Accepted Answer

A) an animal's intestinal tract 
B) a single drop of seawater 
C) human skin 
D) a spoonful of soil 
E) everywhere 
A) an animal's intestinal tract 
B) a single drop of seawater 
C) human skin 
D) a spoonful of soil 
E) everywhere E

Question 2

Bioremediation is the process in which bacteria digest plants and release oily toxins. True or False?

Accepted Answer

A) True 
 B)False  False

Question 3

Why are bacteria able to evolve so quickly?

Accepted Answer

Binary fission is a rapid process. Some bacteria have the ability to divide via binary fission every 20 minutes. This rapid rate of division allows for mutations to occur much more quickly than would happen with eukaryotic cells.

Question 4

Which is the correct sequence of viral replication?

Accepted Answer

A) genetic material replication → penetration → transcription → assembly → protein synthesis 
B) penetration → transcription → assembly → genetic material replication → protein synthesis 
C) penetration → genetic material replication → transcription → assembly → protein synthesis 
D) penetration → genetic material replication → transcription → protein synthesis → assembly 
E) transcription → penetration → genetic material replication → assembly → protein synthesis 
A) genetic material replication → penetration → transcription → assembly → protein synthesis 
B) penetration → transcription → assembly → genetic material replication → protein synthesis 
C) penetration → genetic material replication → transcription → assembly → protein synthesis 
D) penetration → genetic material replication → transcription → protein synthesis → assembly 
E) transcription → penetration → genetic material replication → assembly → protein synthesis

Question 5

In bacteria, the small, circular pieces of DNA that are located outside the chromosome are called:

Accepted Answer

A) plasmids. 
B) sex pili. 
C) flagella. 
D) endospores. 
E) bacteriophages. 
A) plasmids. 
B) sex pili. 
C) flagella. 
D) endospores. 
E) bacteriophages.

Question 6

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

Accepted Answer

A) a virus 
B) a bacterium 
C) a cyanobacterium 
D) an alga 
E) a plant 
A) a virus 
B) a bacterium 
C) a cyanobacterium 
D) an alga 
E) a plant

Question 7

Humans can eat live cultures of some bacteria without getting sick. True or False?

Accepted Answer

A) True 
 B)False

Question 8

Briefly explain how the classification of prokaryotes has changed in recent years due to new technological advances.

Accepted Answer

Until recently, prokaryotes were classif

Question 9

Bacterial endospores are easily damaged by heat and drying. True or False?

Accepted Answer

A) True 
 B)False

Question 10

Smallpox is caused by infected rats. True or False?

Accepted Answer

A) True 
 B)False

Question 11

Intestinal bacteria are necessary for plant-eating animals to digest:

Accepted Answer

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

Question 12

Creutzfeldt-Jakob disease is caused by:

Accepted Answer

A) bacteria. 
B) prions. 
C) viruses. 
D) viroids. 
E) fungi. 
A) bacteria. 
B) prions. 
C) viruses. 
D) viroids. 
E) fungi.

Question 13

To limit your risk from food-borne bacteria, you should:

Accepted Answer

A) cook foods thoroughly. 
B) avoid refrigerating foods. 
C) thaw frozen foods at room temperature. 
D) keep foods at or above room temperature. 
E) eat only uncooked eggs. 
A) cook foods thoroughly. 
B) avoid refrigerating foods. 
C) thaw frozen foods at room temperature. 
D) keep foods at or above room temperature. 
E) eat only uncooked eggs.

Question 14

Mobile prokaryotes can move around with the help of:

Accepted Answer

A) peptidoglycan. 
B) sex pili. 
C) flagella. 
D) plasmids. 
E) endospores. 
A) peptidoglycan. 
B) sex pili. 
C) flagella. 
D) plasmids. 
E) endospores.

Question 15

Prions contain only protein. True or False?

Accepted Answer

A) True 
 B)False

Question 16

The classification of bacteria has historically been based on:

Accepted Answer

A) nutrient requirements only. 
B) the appearance of colonies only. 
C) the means of locomotion only. 
D) pigments. 
E) microbial nutrition, physical appearance, and how they move. 
A) nutrient requirements only. 
B) the appearance of colonies only. 
C) the means of locomotion only. 
D) pigments. 
E) microbial nutrition, physical appearance, and how they move.

Question 17

Peptidoglycan is found in the cell walls of:

Accepted Answer

A) bacteria. 
B) plants. 
C) fungi. 
D) viruses. 
E) archaea. 
A) bacteria. 
B) plants. 
C) fungi. 
D) viruses. 
E) archaea.

Question 18

Cyanobacteria are ________ prokaryotes.

Accepted Answer

The answer of Cyanobacteria are ________ prokaryotes....

Question 19

Bacteria are able to increase their genetic variability by reproducing sexually. True or False?

Accepted Answer

A) True 
 B)False

Question 20

A particle that lacks all organelles and must always reproduce as an intracellular parasite is a(n)________.

Accepted Answer

The answer of A particle that lacks all organelles and...

Exam 19: The Diversity of Prokaryotes and Viruses

In which of these environments would you normally find prokaryotes?

Bioremediation is the process in which bacteria digest plants and release oily toxins. True or False?

Why are bacteria able to evolve so quickly?

Which is the correct sequence of viral replication?

In bacteria, the small, circular pieces of DNA that are located outside the chromosome are called:

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

Humans can eat live cultures of some bacteria without getting sick. True or False?

Briefly explain how the classification of prokaryotes has changed in recent years due to new technological advances.

Bacterial endospores are easily damaged by heat and drying. True or False?

Smallpox is caused by infected rats. True or False?

Intestinal bacteria are necessary for plant-eating animals to digest:

Creutzfeldt-Jakob disease is caused by:

To limit your risk from food-borne bacteria, you should:

Mobile prokaryotes can move around with the help of:

Prions contain only protein. True or False?

The classification of bacteria has historically been based on:

Peptidoglycan is found in the cell walls of:

Cyanobacteria are ________ prokaryotes.

Bacteria are able to increase their genetic variability by reproducing sexually. True or False?

A particle that lacks all organelles and must always reproduce as an intracellular parasite is a(n)________.

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

The Continuity of Life: Cellular 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 Amidst 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

How Do Ecosystems Work

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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