Question 1

Antimicrobial skin secretions include:

Accepted Answer

A) neutrophils. 
B) dendritic cells. 
C) macrophages. 
D) natural killer cells. 
E) lactic acid. 
A) neutrophils. 
B) dendritic cells. 
C) macrophages. 
D) natural killer cells. 
E) lactic acid. E

Question 2

Which of the following is responsible for starting fevers?

Accepted Answer

A) B cells 
B) T cells 
C) histamine 
D) endogenous pyrogens 
A) B cells 
B) T cells 
C) histamine 
D) endogenous pyrogens D

Question 3

List the human body's three lines of defense against disease.

Accepted Answer

nonspecific external barriers (e.g., skin and mucous membranes); nonspecific internal responses; and specific (adaptive)immune responses

Question 4

The proteins released by macrophages, which are responsible for starting fevers, are called ________.

Accepted Answer

The answer of The proteins released by macrophages, which are...

Question 5

Which of these is a function of some B cells?

Accepted Answer

A) responsible for cell-mediated immunity 
B) secrete antibodies 
C) act as helper T cells 
D) act as natural killer cells 
A) responsible for cell-mediated immunity 
B) secrete antibodies 
C) act as helper T cells 
D) act as natural killer cells

Question 6

Why do physicians recommend that their patients avoid taking aspirin for a low-grade fever?

Accepted Answer

A) Aspirin increases the activity of phagocytic white blood cells. 
B) Aspirin decreases fevers, which decrease the amount of interferon produced by the body. 
C) Aspirin decreases fevers, which slow down bacterial reproduction rates. 
D) Aspirin increases the fever response. 
A) Aspirin increases the activity of phagocytic white blood cells. 
B) Aspirin decreases fevers, which decrease the amount of interferon produced by the body. 
C) Aspirin decreases fevers, which slow down bacterial reproduction rates. 
D) Aspirin increases the fever response.

Question 7

Natural killer cells:

Accepted Answer

A) destroy body cells that have been invaded by viruses. 
B) are a type of B cell. 
C) engulf and destroy bacteria. 
D) are located on the skin. 
E) are a type of T cell. 
A) destroy body cells that have been invaded by viruses. 
B) are a type of B cell. 
C) engulf and destroy bacteria. 
D) are located on the skin. 
E) are a type of T cell.

Question 8

In the body, a whitish mixture of dead bacteria, damaged tissue, and living and dead white blood cells often associated with an infection is called ________.

Accepted Answer

The answer of In the body, a whitish mixture of...

Question 9

There is one gene for every antibody. True or False?

Accepted Answer

A) True 
 B)False

Question 10

Antibodies are:

Accepted Answer

A) protein molecules. 
B) amino acid molecules. 
C) carbohydrate molecules. 
D) organelles of platelets. 
E) derived from vitamins. 
A) protein molecules. 
B) amino acid molecules. 
C) carbohydrate molecules. 
D) organelles of platelets. 
E) derived from vitamins.

Question 11

Inflammation occurs in response to chemicals secreted by:

Accepted Answer

A) natural killer cells. 
B) plasma cells. 
C) mast cells. 
D) B cells. 
E) T cells. 
A) natural killer cells. 
B) plasma cells. 
C) mast cells. 
D) B cells. 
E) T cells.

Question 12

What mechanisms do natural killer cells use to destroy body cells that have been infected by cancer or a virus?

Accepted Answer

They open up large holes in th

Question 13

Which of the following causes food poisoning?

Accepted Answer

A) SARS 
B) H1N1 
C) 
E)  coli O157:H7 
D) Ebola virus 
E) Mycobacterium tuberculosis 
A) SARS 
B) H1N1 
C) 
E)  coli O157:H7 
D) Ebola virus 
E) Mycobacterium tuberculosis

Question 14

Which of the following is a consequence of histamine release?

Accepted Answer

A) leaky capillary walls 
B) constriction of the smooth muscle that surrounds arterioles 
C) decreased blood flow 
D) initiation of blood clotting 
A) leaky capillary walls 
B) constriction of the smooth muscle that surrounds arterioles 
C) decreased blood flow 
D) initiation of blood clotting

Question 15

List the events that occur in an allergic reaction.

Accepted Answer

B cell recognition, antibodies

Question 16

Some cancers are caused by viruses. True or False?

Accepted Answer

A) True 
 B)False

Question 17

As shown in this figure, upon reexposure to pollen, the pollen binds to:

Accepted Answer

A) histamine. 
B) T cells. 
C) antibodies on mast cells. 
D) free antibodies within the capillaries. 
E) plasma cells. 
A) histamine. 
B) T cells. 
C) antibodies on mast cells. 
D) free antibodies within the capillaries. 
E) plasma cells.

Question 18

Would you expect someone with AIDS to have a fever in response to an infection?

Accepted Answer

A) Yes, because the nonspecific defenses are relatively normal. 
B) Yes, because the specific immune response is relatively normal. 
C) No, because the nonspecific defenses are weakened or destroyed. 
D) No, because the specific immune response is weakened or destroyed. 
A) Yes, because the nonspecific defenses are relatively normal. 
B) Yes, because the specific immune response is relatively normal. 
C) No, because the nonspecific defenses are weakened or destroyed. 
D) No, because the specific immune response is weakened or destroyed.

Question 19

Briefly describe how a fever develops in response to infection.

Accepted Answer

White blood cells release endogenous pyr

Question 20

Last summer you were stung by a bee for the first time in your life. You developed only a small area of redness and swelling at the site. However, if you are stung again and have a very severe reaction that occurs more rapidly, you know that this is due to the activity of:

Accepted Answer

A) memory cells. 
B) cytotoxic T cells. 
C) complement. 
D) helper T cells. 
E) tissue macrophages. 
A) memory cells. 
B) cytotoxic T cells. 
C) complement. 
D) helper T cells. 
E) tissue macrophages.

Exam 36: Defenses Against Disease

Antimicrobial skin secretions include:

Which of the following is responsible for starting fevers?

List the human body's three lines of defense against disease.

The proteins released by macrophages, which are responsible for starting fevers, are called ________.

Which of these is a function of some B cells?

Why do physicians recommend that their patients avoid taking aspirin for a low-grade fever?

Natural killer cells:

In the body, a whitish mixture of dead bacteria, damaged tissue, and living and dead white blood cells often associated with an infection is called ________.

There is one gene for every antibody. True or False?

Antibodies are:

Inflammation occurs in response to chemicals secreted by:

What mechanisms do natural killer cells use to destroy body cells that have been infected by cancer or a virus?

Which of the following causes food poisoning?

Which of the following is a consequence of histamine release?

List the events that occur in an allergic reaction.

Some cancers are caused by viruses. True or False?

As shown in this figure, upon reexposure to pollen, the pollen binds to:

Would you expect someone with AIDS to have a fever in response to an infection?

Briefly describe how a fever develops in response to infection.

Last summer you were stung by a bee for the first time in your life. You developed only a small area of redness and swelling at the site. However, if you are stung again and have a very severe reaction that occurs more rapidly, you know that this is due to the activity of:

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 Prokaryotes and Viruses

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

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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