Question 1

Which statement is incorrect?

Accepted Answer

A) Cytotoxic T cells release chemicals that destroy targeted cells. 
B) Helper T cells enhance the activity of other T cells and B cells. 
C) Regulator T cells are believed to play an important role in tolerance to self-antigens. 
D) Helper T cells can combine only with host cells bearing both foreign antigen and class I MHC-encoded self-antigens on their surface. 
E) The majority of T cells are helper T cells. 
A) Cytotoxic T cells release chemicals that destroy targeted cells. 
B) Helper T cells enhance the activity of other T cells and B cells. 
C) Regulator T cells are believed to play an important role in tolerance to self-antigens. 
D) Helper T cells can combine only with host cells bearing both foreign antigen and class I MHC-encoded self-antigens on their surface. 
E) The majority of T cells are helper T cells.

Question 2

Select the incorrect statement about the glucocorticoids.

Accepted Answer

A) Cortisol is an example. 
B) They are used to treat undesirable immune responses. 
C) They stimulate lymphocyte production. 
D) They reduce the body's ability to resist infection. 
E) They suppress the inflammatory response. 
A) Cortisol is an example. 
B) They are used to treat undesirable immune responses. 
C) They stimulate lymphocyte production. 
D) They reduce the body's ability to resist infection. 
E) They suppress the inflammatory response.

Question 3

Which of the following does not play a direct role in immune surveillance against cancer?

Accepted Answer

A) B cells 
B) natural killer cells 
C) macrophages 
D) cytotoxic T cells 
E) interferon 
A) B cells 
B) natural killer cells 
C) macrophages 
D) cytotoxic T cells 
E) interferon

Question 4

Which of the following are lymphoid tissues?

Accepted Answer

A) lymph nodes 
B) spleen 
C) bone marrow 
D) tonsils 
E) All of the above 
A) lymph nodes 
B) spleen 
C) bone marrow 
D) tonsils 
E) All of the above

Question 5

A host cell is the body cell of an infected individual.

Accepted Answer

A) True 
 B)False

Question 6

Nonspecific immune responses

Accepted Answer

A) come into play whether or not there has been prior experience with the offending agent 
B) are triggered by invasion of infectious microorganisms, chemical injury, mechanical trauma, or burns 
C) are mediated by lymphocytes 
D) have characteristics a and b 
E) have none of the above characteristics 
A) come into play whether or not there has been prior experience with the offending agent 
B) are triggered by invasion of infectious microorganisms, chemical injury, mechanical trauma, or burns 
C) are mediated by lymphocytes 
D) have characteristics a and b 
E) have none of the above characteristics

Question 7

Which of the following does not characterize immediate hypersensitivity?

Accepted Answer

A) It is mediated by T cells. 
B) It involves IgE antibodies. 
C) It occurs within 20 minutes of exposure to the allergen. 
D) It usually involves allergic responses to inhaled or ingested allergens. 
E) It includes hay fever, asthma, and hives. 
A) It is mediated by T cells. 
B) It involves IgE antibodies. 
C) It occurs within 20 minutes of exposure to the allergen. 
D) It usually involves allergic responses to inhaled or ingested allergens. 
E) It includes hay fever, asthma, and hives.

Question 8

____________________ is released from virally invaded cells and, transiently, nonselectively inhibits multiplication of viruses in other cells.

Accepted Answer

The answer of ____________________ is released from virally invaded cells...

Question 9

Diapedesis is

Accepted Answer

A) the process of white blood cells engulfing and destroying invading organisms 
B) the process of leukocytes squeezing through pores of the capillary wall into the surrounding interstitial fluid 
C) the attraction of white blood cells to areas of injury, inflammation, and bacterial invasion 
D) a feature exhibited by platelets 
E) the linking together of a foreign cell and a phagocytic cell 
A) the process of white blood cells engulfing and destroying invading organisms 
B) the process of leukocytes squeezing through pores of the capillary wall into the surrounding interstitial fluid 
C) the attraction of white blood cells to areas of injury, inflammation, and bacterial invasion 
D) a feature exhibited by platelets 
E) the linking together of a foreign cell and a phagocytic cell

Question 10

Number 1 is a(n) ____________________ cell, and number 6 is a(n) ____________________ cell.

Accepted Answer

cytotoxic

Question 11

Which of the following is not a component of innate immunity?

Accepted Answer

A) inflammation 
B) antibody production 
C) interferon 
D) natural killer cells 
E) the complement system 
A) inflammation 
B) antibody production 
C) interferon 
D) natural killer cells 
E) the complement system

Question 12

Which of the following is not accomplished by a chemical released from activated phagocytes?

Accepted Answer

A) Decreasing plasma iron so that it is unavailable for bacterial multiplication 
B) Stimulating histamine release from mast cells 
C) Stimulating the synthesis of viral-blocking enzymes 
D) Inducing the development of fever 
E) Stimulating proliferation of white blood cells 
A) Decreasing plasma iron so that it is unavailable for bacterial multiplication 
B) Stimulating histamine release from mast cells 
C) Stimulating the synthesis of viral-blocking enzymes 
D) Inducing the development of fever 
E) Stimulating proliferation of white blood cells

Question 13

Keratinocytes

Accepted Answer

A) form the outer protective layer of the skin 
B) secrete interleukin 1 
C) present antigens to helper T cells 
D) have characteristics a and b 
E) have characteristics a and c 
A) form the outer protective layer of the skin 
B) secrete interleukin 1 
C) present antigens to helper T cells 
D) have characteristics a and b 
E) have characteristics a and c

Question 14

Indicate the characteristics that apply to bacteria and viruses by using the following code:
a.bacteria
b.viruses
c.bacteria and viruses
-Consist of nucleic acids enclosed by a protein coat

Accepted Answer

The answer of Indicate the characteristics that apply to bacteria...

Question 15

A secondary response to an invading microorganism that has invaded a previous time is

Accepted Answer

A) launched by memory cells 
B) slower and weaker than the primary response 
C) more rapid, more potent, and longer-lasting than the primary response 
D) both a and b 
E) both a and c 
A) launched by memory cells 
B) slower and weaker than the primary response 
C) more rapid, more potent, and longer-lasting than the primary response 
D) both a and b 
E) both a and c

Question 16

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code:
a.cytotoxic T cells
b.helper T cells
c.suppressor T cells
-Secrete B-cell growth factor

Accepted Answer

The answer of Indicate which type of T cell is...

Question 17

Antihistamines are effective in combating the allergic symptoms induced by a slow-reactive substance of anaphylaxis.

Accepted Answer

A) True 
 B)False

Question 18

Activated complement does not

Accepted Answer

A) promote localized vasodilation 
B) formation membrane-attack complexes 
C) activate kinins 
D) stimulate interferon production 
E) stimulate local mast cell activity 
A) promote localized vasodilation 
B) formation membrane-attack complexes 
C) activate kinins 
D) stimulate interferon production 
E) stimulate local mast cell activity

Question 19

Saliva is destructive to bacteria because it is highly acidic.

Accepted Answer

A) True 
 B)False

Question 20

Match the antibody type with the correct characteristic.
a.IgA
b.IgM
c.IgG
d.IgD
e.IgE
-Antibody that serves as the B-cell surface receptor for antigen attachment and is produced in the early stages of plasma cell response

Accepted Answer

The answer of Match the antibody type with the correct...

Which statement is incorrect?

Select the incorrect statement about the glucocorticoids.

Which of the following does not play a direct role in immune surveillance against cancer?

Which of the following are lymphoid tissues?

A host cell is the body cell of an infected individual.

Nonspecific immune responses

Which of the following does not characterize immediate hypersensitivity?

____________________ is released from virally invaded cells and, transiently, nonselectively inhibits multiplication of viruses in other cells.

Diapedesis is

Number 1 is a(n) cell, and number 6 is a(n) cell.

Which of the following is not a component of innate immunity?

Which of the following is not accomplished by a chemical released from activated phagocytes?

Keratinocytes

Indicate the characteristics that apply to bacteria and viruses by using the following code: a.bacteria b.viruses c.bacteria and viruses -Consist of nucleic acids enclosed by a protein coat

A secondary response to an invading microorganism that has invaded a previous time is

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code: a.cytotoxic T cells b.helper T cells c.suppressor T cells -Secrete B-cell growth factor

Antihistamines are effective in combating the allergic symptoms induced by a slow-reactive substance of anaphylaxis.

Activated complement does not

Saliva is destructive to bacteria because it is highly acidic.

Match the antibody type with the correct characteristic. a.IgA b.IgM c.IgG d.IgD e.IgE -Antibody that serves as the B-cell surface receptor for antigen attachment and is produced in the early stages of plasma cell response

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

Exam 12: Body Defenses

Which statement is incorrect?

Select the incorrect statement about the glucocorticoids.

Which of the following does not play a direct role in immune surveillance against cancer?

Which of the following are lymphoid tissues?

A host cell is the body cell of an infected individual.

Nonspecific immune responses

Which of the following does not characterize immediate hypersensitivity?

____________________ is released from virally invaded cells and, transiently, nonselectively inhibits multiplication of viruses in other cells.

Diapedesis is

Number 1 is a(n) ____________________ cell, and number 6 is a(n) ____________________ cell.

Which of the following is not a component of innate immunity?

Which of the following is not accomplished by a chemical released from activated phagocytes?

Keratinocytes

Indicate the characteristics that apply to bacteria and viruses by using the following code: a.bacteria b.viruses c.bacteria and viruses -Consist of nucleic acids enclosed by a protein coat

A secondary response to an invading microorganism that has invaded a previous time is

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code: a.cytotoxic T cells b.helper T cells c.suppressor T cells -Secrete B-cell growth factor

Antihistamines are effective in combating the allergic symptoms induced by a slow-reactive substance of anaphylaxis.

Activated complement does not

Saliva is destructive to bacteria because it is highly acidic.

Match the antibody type with the correct characteristic. a.IgA b.IgM c.IgG d.IgD e.IgE -Antibody that serves as the B-cell surface receptor for antigen attachment and is produced in the early stages of plasma cell response

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

Number 1 is a(n) cell, and number 6 is a(n) cell.