Question 1

A hapten is an antigen that is capable of causing antibody production on its own.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 2

Complement factors C5b+C6+C7+C8 make up a membrane attack complex that results in

Accepted Answer

A)  enhanced phagocytosis 
B)  opsonization 
C)  cytolysis 
D)  all of these 
A)  enhanced phagocytosis 
B)  opsonization 
C)  cytolysis 
D)  all of these

Question 3

When a virus infects a cell, some of the viral proteins are broken down into peptide fragments.

Accepted Answer

A) True 
 B)False

Question 4

A cytokine released by macrophages that can stimulate helper T cells is

Accepted Answer

A)  interleukin-1. 
B)  interleukin-2. 
C)  MHC class I. 
D)  MHC class II. 
E)  immunoglobulin. 
A)  interleukin-1. 
B)  interleukin-2. 
C)  MHC class I. 
D)  MHC class II. 
E)  immunoglobulin.

Question 5

Viruses and self-proteins are examples of proteins produced inside of the cell.

Accepted Answer

A) True 
 B)False

Question 6

Each antigen has one epitope.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 7

As a result of aging, new lymphocytes continue to be produced in the thymus up until the age of 60 years, but they are less effective. Check all reasons they are less effective.

Accepted Answer

A) The body's increased reaction to infections can lead to pneumonia. 
B) Helper T-lymphocytes do not respond as well to antigens. 
C) There is a decreased production of B-lymphocytes
DThe increased production of cytotoxic T-lymphocytes causes the body to over-respond to viruses. 
A) The body's increased reaction to infections can lead to pneumonia. 
B) Helper T-lymphocytes do not respond as well to antigens. 
C) There is a decreased production of B-lymphocytes
DThe increased production of cytotoxic T-lymphocytes causes the body to over-respond to viruses.

Question 8

Which of the following are functions of the lymphatic system? 1. Defense
2) Fluid equilibrium
3) Fat absorption

Accepted Answer

A)  1 
B)  HYPERLINK "" خطأ! مرجع الارتباط التشعبي غير صحيح.1,2 
C)  1,3 
D)  2,3 
E)  1,2,3 
A)  1 
B)  HYPERLINK "" خطأ! مرجع الارتباط التشعبي غير صحيح.1,2 
C)  1,3 
D)  2,3 
E)  1,2,3

Question 9

Cytotoxic T-cells interact with target cells by recognizing

Accepted Answer

A)  foreign proteins only. 
B)  MHC proteins only. 
C)  foreign protein-MHC protein complexes. 
D)  either foreign proteins or MHC proteins. 
E)  neither foreign proteins nor MHC proteins. 
A)  foreign proteins only. 
B)  MHC proteins only. 
C)  foreign protein-MHC protein complexes. 
D)  either foreign proteins or MHC proteins. 
E)  neither foreign proteins nor MHC proteins.

Question 10

In the classical pathway of complement activation, complement attaches to an antigen-antibody complex.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 11

Check all that occur during inflammation.

Accepted Answer

A) Chemical mediators cause vasodilation 
B) Blood flow is decreased to the area 
C) Vascular permeability is decreased 
D) Fibrin walls off the infected area 
E) Complement attracts phagocytes to the area 
A) Chemical mediators cause vasodilation 
B) Blood flow is decreased to the area 
C) Vascular permeability is decreased 
D) Fibrin walls off the infected area 
E) Complement attracts phagocytes to the area

Question 12

Antigens

Accepted Answer

A)  have molecular weights of around 1000. 
B)  have one antigenic determinant (epitope). 
C)  are considered normal by the immune system. 
D)  can contain many different antigenic determinants (epitopes). 
E)  are usually made of lipids. 
A)  have molecular weights of around 1000. 
B)  have one antigenic determinant (epitope). 
C)  are considered normal by the immune system. 
D)  can contain many different antigenic determinants (epitopes). 
E)  are usually made of lipids.

Question 13

A T helper cell becomes activated by a

Accepted Answer

A)  plasma cell 
B)  antigen presenting cell 
C)  B cell 
D)  memory cell 
A)  plasma cell 
B)  antigen presenting cell 
C)  B cell 
D)  memory cell

Question 14

Protein is usually a T-cell dependent antigen.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 15

Infected cells

Accepted Answer

A)  display peptide fragments of degraded viral proteins on their cell surface 
B)  have class II MHC antigens on their cell surface 
C)  are not affected by T cells 
D)  lyse T cells 
A)  display peptide fragments of degraded viral proteins on their cell surface 
B)  have class II MHC antigens on their cell surface 
C)  are not affected by T cells 
D)  lyse T cells

Question 16

Which of the following is correctly matched?

Accepted Answer

A)  IgA - found in saliva and tears 
B)  IgD - can cross the placenta 
C)  IgG - first to challenge the antigen 
D)  IgM - antigen-binding receptor on B cells 
E)  IgE - transfusion reactions 
A)  IgA - found in saliva and tears 
B)  IgD - can cross the placenta 
C)  IgG - first to challenge the antigen 
D)  IgM - antigen-binding receptor on B cells 
E)  IgE - transfusion reactions

Question 17

A person with type O blood may receive blood from a person with type B blood.

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 18

On first exposure to antigen, T helper cells

Accepted Answer

A)  become activated and increase in number 
B)  cause inflammation 
C)  cause skin lesions 
D)  attract more macrophages 
A)  become activated and increase in number 
B)  cause inflammation 
C)  cause skin lesions 
D)  attract more macrophages

Question 19

Fragments of foreign proteins are antibodies.

Accepted Answer

A) True 
 B)False

Question 20

The human body makes

Accepted Answer

A)  only one type of cytotoxic T cell. 
B)  tens of different types of cytotoxic T cells. 
C)  hundreds of different types of cytotoxic T cells. 
D)  thousands of different types of cytotoxic T cells. 
E)  millions of different types of cytotoxic T cells. 
A)  only one type of cytotoxic T cell. 
B)  tens of different types of cytotoxic T cells. 
C)  hundreds of different types of cytotoxic T cells. 
D)  thousands of different types of cytotoxic T cells. 
E)  millions of different types of cytotoxic T cells.

A hapten is an antigen that is capable of causing antibody production on its own.

Complement factors C5b+C6+C7+C8 make up a membrane attack complex that results in

When a virus infects a cell, some of the viral proteins are broken down into peptide fragments.

A cytokine released by macrophages that can stimulate helper T cells is

Viruses and self-proteins are examples of proteins produced inside of the cell.

Each antigen has one epitope.

As a result of aging, new lymphocytes continue to be produced in the thymus up until the age of 60 years, but they are less effective. Check all reasons they are less effective.

Which of the following are functions of the lymphatic system? 1. Defense 2) Fluid equilibrium 3) Fat absorption

Cytotoxic T-cells interact with target cells by recognizing

In the classical pathway of complement activation, complement attaches to an antigen-antibody complex.

Check all that occur during inflammation.

Antigens

A T helper cell becomes activated by a

Protein is usually a T-cell dependent antigen.

Infected cells

Which of the following is correctly matched?

A person with type O blood may receive blood from a person with type B blood.

On first exposure to antigen, T helper cells

Fragments of foreign proteins are antibodies.

The human body makes

The Human Organism

The Chemical Basis of Life

Cell Structures and Their Functions

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood Vessels and Circulation

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters

Exam 14: The Lymphatic System and Immunity

A hapten is an antigen that is capable of causing antibody production on its own.

Complement factors C5b+C6+C7+C8 make up a membrane attack complex that results in

When a virus infects a cell, some of the viral proteins are broken down into peptide fragments.

A cytokine released by macrophages that can stimulate helper T cells is

Viruses and self-proteins are examples of proteins produced inside of the cell.

Each antigen has one epitope.

As a result of aging, new lymphocytes continue to be produced in the thymus up until the age of 60 years, but they are less effective. Check all reasons they are less effective.

Which of the following are functions of the lymphatic system? 1. Defense 2) Fluid equilibrium 3) Fat absorption

Cytotoxic T-cells interact with target cells by recognizing

In the classical pathway of complement activation, complement attaches to an antigen-antibody complex.

Check all that occur during inflammation.

Antigens

A T helper cell becomes activated by a

Protein is usually a T-cell dependent antigen.

Infected cells

Which of the following is correctly matched?

A person with type O blood may receive blood from a person with type B blood.

On first exposure to antigen, T helper cells

Fragments of foreign proteins are antibodies.

The human body makes

The Human Organism

The Chemical Basis of Life

Cell Structures and Their Functions

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Endocrine System

Blood

Heart

Blood Vessels and Circulation

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters