Question 1

The antigen-binding fragments (Fab) of antibodies are

Accepted Answer

A)  located in the arm tips of the antibody molecule 
B)  located in the tail portion of the antibody molecule 
C)  unique for each antibody so that each antibody can interact only with an antigen that specifically matches it 
D)  located in the arm tips of the antibody molecule, and are unique for each antibody so that each antibody can interact only with an antigen that specifically matches it 
E)  located in the tail portion of the antibody molecule, and are unique for each antibody so that each antibody can interact only with an antigen that specifically matches it 
A)  located in the arm tips of the antibody molecule 
B)  located in the tail portion of the antibody molecule 
C)  unique for each antibody so that each antibody can interact only with an antigen that specifically matches it 
D)  located in the arm tips of the antibody molecule, and are unique for each antibody so that each antibody can interact only with an antigen that specifically matches it 
E)  located in the tail portion of the antibody molecule, and are unique for each antibody so that each antibody can interact only with an antigen that specifically matches it

Question 2

Hypersensitivity is a B cell-mediated response.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not secreted by helper T cells?

Accepted Answer

A)  B-cell growth factor 
B)  T-cell growth factor 
C)  interleukin 1 
D)  interleukin 2 
E)  macrophage migration inhibition factor 
A)  B-cell growth factor 
B)  T-cell growth factor 
C)  interleukin 1 
D)  interleukin 2 
E)  macrophage migration inhibition factor

Question 4

Which of the following is not attributable to the immune defense system?

Accepted Answer

A)  defends against pathogenic microorganisms 
B)  converts foreign chemicals into compounds that can be more readily eliminated in the urine 
C)  removes worn-out cells and tissue debris 
D)  identifies and destroys abnormal or mutant cells 
E)  can inappropriately induce allergic responses and autoimmune disease 
A)  defends against pathogenic microorganisms 
B)  converts foreign chemicals into compounds that can be more readily eliminated in the urine 
C)  removes worn-out cells and tissue debris 
D)  identifies and destroys abnormal or mutant cells 
E)  can inappropriately induce allergic responses and autoimmune disease

Question 5

Complete each of the following statments.
The ____________________ is a layer of subcutaneous tissue under the dermis of the skin.

Accepted Answer

The answer of Complete each of the following statments.
The ____________________...

Question 6

Fever results from neurological activity in the cerebellum.

Accepted Answer

A) True 
 B)False

Question 7

IgE antibodies are common mediators for allergic reactions.

Accepted Answer

A) True 
 B)False

Question 8

Complete each of the following statments.
____________________ molecules are plasma membrane-bound glycoproteins that serve as self-antigens.

Accepted Answer

The answer of Complete each of the following statments.
____________________ molecules...

Question 9

Complete each of the following statments.
Penicillin is a possible ____________________, provoking hypersensitivity.

Accepted Answer

The answer of Complete each of the following statments.
Penicillin is...

Question 10

Interferon is secreted by lymphoid organs.

Accepted Answer

A) True 
 B)False

Question 11

The formation of memory cells against a particular disease-causing microorganism can only occur after the person actually has the disease.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Cytotoxic T cells

Accepted Answer

A)  are not the most numerous of the T cells 
B)  secrete B-cell growth factor and T-cell growth factor 
C)  confer greater phagocytic properties on macrophages, converting them into angry macrophages 
D)  release antigens 
E)  bind with class II MHC glycoproteins 
A)  are not the most numerous of the T cells 
B)  secrete B-cell growth factor and T-cell growth factor 
C)  confer greater phagocytic properties on macrophages, converting them into angry macrophages 
D)  release antigens 
E)  bind with class II MHC glycoproteins

Question 14

A large, complex molecule that triggers a specific immune response against itself when it gains entry into the body is known as

Accepted Answer

A)  interferon 
B)  an antigen 
C)  an antibody 
D)  a complement 
E)  an opsonin 
A)  interferon 
B)  an antigen 
C)  an antibody 
D)  a complement 
E)  an opsonin

Question 15

Viral-blocking enzymes induced by interferon are activated only upon viral invasion of the cell.

Accepted Answer

A) True 
 B)False

Question 16

Complete each of the following statments.
List two functions of dermal blood vessels.
 $\begin{array}{ll}
(1)&\_\_\_\
(2)&\_\_\_\
\end{array}$

Accepted Answer

supply blood to both

Question 17

Describe the body's primary and secondary immune responses.

Accepted Answer

The primary response is the body's respo

Question 18

Vasodilation of the blood vessels supplying a tissue increases the flow of blood to that area.

Accepted Answer

A) True 
 B)False

Question 19

The arm regions of an antibody determine with what antigen the antibody can bind, whereas the tail portion determines the destiny of the antibody once it is bound.

Accepted Answer

A) True 
 B)False

Question 20

Which occurrence is not characteristic of the inflammation response?

Accepted Answer

A)  increased capillary permeability 
B)  increased macrophage activity 
C)  localized vasodilation 
D)  localized edema 
E)  decreased phagocytic activity 
A)  increased capillary permeability 
B)  increased macrophage activity 
C)  localized vasodilation 
D)  localized edema 
E)  decreased phagocytic activity

Exam 12: Body Defenses

The antigen-binding fragments (Fab) of antibodies are

Hypersensitivity is a B cell-mediated response.

Which of the following is not secreted by helper T cells?

Which of the following is not attributable to the immune defense system?

Complete each of the following statments. The ____________________ is a layer of subcutaneous tissue under the dermis of the skin.

Fever results from neurological activity in the cerebellum.

IgE antibodies are common mediators for allergic reactions.

Complete each of the following statments. ____________________ molecules are plasma membrane-bound glycoproteins that serve as self-antigens.

Complete each of the following statments. Penicillin is a possible ____________________, provoking hypersensitivity.

Interferon is secreted by lymphoid organs.

The formation of memory cells against a particular disease-causing microorganism can only occur after the person actually has the disease.

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

Cytotoxic T cells

A large, complex molecule that triggers a specific immune response against itself when it gains entry into the body is known as

Viral-blocking enzymes induced by interferon are activated only upon viral invasion of the cell.

Complete each of the following statments. List two functions of dermal blood vessels. (1) \_\_\_ (2) \_\_\_

Describe the body's primary and secondary immune responses.

Vasodilation of the blood vessels supplying a tissue increases the flow of blood to that area.

The arm regions of an antibody determine with what antigen the antibody can bind, whereas the tail portion determines the destiny of the antibody once it is bound.

Which occurrence is not characteristic of the inflammation response?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

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