Question 1

Which cells stimulate B cells to divide and produce antibodies?

Accepted Answer

A)  mast cells 
B)  macrophages 
C)  NK cells 
D)  TC cells 
E)  TH cells 
A)  mast cells 
B)  macrophages 
C)  NK cells 
D)  TC cells 
E)  TH cells E

Question 2

What must happen in order for a donor organ to not be rejected by the recipient?

Accepted Answer

A)  The MHC complexes need to match as closely as possible. 
B)  The recipient's plasma cells will be inactivated. 
C)  The recipient's passive immunity pathway will be activated. 
D)  The NK cells of the recipient will be inactivated. 
E)  The cytotoxic T cells will be inactivated. 
A)  The MHC complexes need to match as closely as possible. 
B)  The recipient's plasma cells will be inactivated. 
C)  The recipient's passive immunity pathway will be activated. 
D)  The NK cells of the recipient will be inactivated. 
E)  The cytotoxic T cells will be inactivated. A

Question 3

A baby born without a thymus:

Accepted Answer

A)  would not have an antibody mediated immune response. 
B)  would not produce lymphocytes. 
C)  would not produce immunocompetent T cells. 
D)  will lack the ability to mount an immune response. 
E)  will lack antigen presenting cells. 
A)  would not have an antibody mediated immune response. 
B)  would not produce lymphocytes. 
C)  would not produce immunocompetent T cells. 
D)  will lack the ability to mount an immune response. 
E)  will lack antigen presenting cells. C

Question 4

Which of the following behaviors is associated with a high risk of HIV transmission?

Accepted Answer

A)  unprotected sex (no condom used) 
B)  hugging 
C)  casual kissing 
D)  sharing bathroom facilities 
E)  sharing food or water 
A)  unprotected sex (no condom used) 
B)  hugging 
C)  casual kissing 
D)  sharing bathroom facilities 
E)  sharing food or water

Question 5

A nursing baby:

Accepted Answer

A)  lacks cell mediated immunity. 
B)  lacks antibody mediated immunity. 
C)  lacks an adaptive immune response. 
D)  receives active immunity via the breast milk. 
E)  receives passive immunity via the breast milk. 
A)  lacks cell mediated immunity. 
B)  lacks antibody mediated immunity. 
C)  lacks an adaptive immune response. 
D)  receives active immunity via the breast milk. 
E)  receives passive immunity via the breast milk.

Question 6

Specific immune responses are also referred to as innate immunity.

Accepted Answer

A) True 
 B)False

Question 7

The main antigen presenting cells of the body are:

Accepted Answer

A)  macrophages and B cells only. 
B)  macrophages and dendritic cell only. 
C)  dendritic cells and B cells only. 
D)  dendritic cells and plasma cells only. 
E)  macrophages, B cells and dendritic cells. 
A)  macrophages and B cells only. 
B)  macrophages and dendritic cell only. 
C)  dendritic cells and B cells only. 
D)  dendritic cells and plasma cells only. 
E)  macrophages, B cells and dendritic cells.

Question 8

Which cells complete their maturation in the thymus gland?

Accepted Answer

A)  T cytotoxic cells only 
B)  T helper cells only 
C)  B cells only 
D)  Both T cytotoxic and T helper cells 
E)  T cytotoxic cells, T helper cells, and B cells 
A)  T cytotoxic cells only 
B)  T helper cells only 
C)  B cells only 
D)  Both T cytotoxic and T helper cells 
E)  T cytotoxic cells, T helper cells, and B cells

Question 9

Interleukins activate and direct the movement of white blood cells from the blood to the tissues.

Accepted Answer

A) True 
 B)False

Question 10

Cell-mediated immunity is directed by:

Accepted Answer

A)  B cells, which secrete antibodies. 
B)  T cells, which secrete antibodies. 
C)  macrophages, which produce histamines. 
D)  B cells, which react with APCs. 
E)  T cells, which react with APCs. 
A)  B cells, which secrete antibodies. 
B)  T cells, which secrete antibodies. 
C)  macrophages, which produce histamines. 
D)  B cells, which react with APCs. 
E)  T cells, which react with APCs.

Question 11

Which of the following combinations could result in Rh incompatibility?

Accepted Answer

A)  Rh-positive mother, Rh-negative father 
B)  Rh-positive mother, Rh-positive father 
C)  Rh-negative mother, Rh-positive father 
D)  Rh-negative mother, Rh-negative father 
E)  More than one of the above. 
A)  Rh-positive mother, Rh-negative father 
B)  Rh-positive mother, Rh-positive father 
C)  Rh-negative mother, Rh-positive father 
D)  Rh-negative mother, Rh-negative father 
E)  More than one of the above.

Question 12

Which statement about the inflammatory response is FALSE?

Accepted Answer

A)  Histamine causes increased capillary permeability. 
B)  Type I interferons and neutrophils secrete histamine. 
C)  Increased blood flow to infected areas brings more phagocytic cells. 
D)  Swelling results from an increase in the volume of interstitial fluid in the infected area. 
E)  Edema and certain enzymes in the plasma cause the pain associated with inflammation. 
A)  Histamine causes increased capillary permeability. 
B)  Type I interferons and neutrophils secrete histamine. 
C)  Increased blood flow to infected areas brings more phagocytic cells. 
D)  Swelling results from an increase in the volume of interstitial fluid in the infected area. 
E)  Edema and certain enzymes in the plasma cause the pain associated with inflammation.

Question 13

Select one of the options below and compare and contrast the paired terms: 
A. primary and secondary immune response 
B. passive and active immunity 
C. artificial and natural immunity

Accepted Answer

A. The primary immune response is elicit

Question 14

Protease inhibitors:

Accepted Answer

A)  inhibit the action of reverse transcriptase. 
B)  are glycoproteins found in saliva. 
C)  result in viral copies that cannot infect new cells. 
D)  can cure AIDS patients. 
E)  destroy helper T cells. 
A)  inhibit the action of reverse transcriptase. 
B)  are glycoproteins found in saliva. 
C)  result in viral copies that cannot infect new cells. 
D)  can cure AIDS patients. 
E)  destroy helper T cells.

Question 15

____ can phagocytose about 100 bacteria during their life spans, and release antiviral agents.

Accepted Answer

A)  Natural killer cells 
B)  Plasma cells 
C)  Macrophages 
D)  T helper cells 
E)  Cytotoxic T cells 
A)  Natural killer cells 
B)  Plasma cells 
C)  Macrophages 
D)  T helper cells 
E)  Cytotoxic T cells

Question 16

Which of the following immune system components has been identified in almost all organisms studied?

Accepted Answer

A)  bone marrow 
B)  phagocytes 
C)  antimicrobial peptides 
D)  T-cells 
E)  memory cells 
A)  bone marrow 
B)  phagocytes 
C)  antimicrobial peptides 
D)  T-cells 
E)  memory cells

Question 17

Figure 45-1   Based on the accompanying graph, which statement is accurate?

Accepted Answer

A)  The primary response to the initial injection subsides after seven weeks. 
B)  The primary response to the initial injection peaks at 102 antibody units. 
C)  The primary response to the initial injection is faster, but not as intense as the secondary response. 
D)  The secondary response to the initial antigen is both faster and more intense than the primary response. 
E)  The primary and secondary responses to the initial antigen are about equal. 
A)  The primary response to the initial injection subsides after seven weeks. 
B)  The primary response to the initial injection peaks at 102 antibody units. 
C)  The primary response to the initial injection is faster, but not as intense as the secondary response. 
D)  The secondary response to the initial antigen is both faster and more intense than the primary response. 
E)  The primary and secondary responses to the initial antigen are about equal.

Question 18

What class of antibodies is normally found in the mucosa of the respiratory tract?

Accepted Answer

A)  IgA 
B)  IgD 
C)  IgE 
D)  IgG 
E)  IgM 
A)  IgA 
B)  IgD 
C)  IgE 
D)  IgG 
E)  IgM

Question 19

Animal cells recognize common types of pathogen molecules and activate the production of antimicrobial peptides.

Accepted Answer

A) True 
 B)False

Question 20

Which regulatory protein is mismatched with its function?

Accepted Answer

A)  Type I interferons − inhibit viral replication 
B)  interleukin-1 − resets body's thermostat, resulting in fever 
C)  tumor necrosis factor − kills tumor cells 
D)  cytokines − secrete antibodies 
E)  Type II interferons − stimulate macrophages to destroy tumor cells 
A)  Type I interferons − inhibit viral replication 
B)  interleukin-1 − resets body's thermostat, resulting in fever 
C)  tumor necrosis factor − kills tumor cells 
D)  cytokines − secrete antibodies 
E)  Type II interferons − stimulate macrophages to destroy tumor cells

Exam 45: The Immune System Internal Defense

Which cells stimulate B cells to divide and produce antibodies?

What must happen in order for a donor organ to not be rejected by the recipient?

A baby born without a thymus:

Which of the following behaviors is associated with a high risk of HIV transmission?

A nursing baby:

Specific immune responses are also referred to as innate immunity.

The main antigen presenting cells of the body are:

Which cells complete their maturation in the thymus gland?

Interleukins activate and direct the movement of white blood cells from the blood to the tissues.

Cell-mediated immunity is directed by:

Which of the following combinations could result in Rh incompatibility?

Which statement about the inflammatory response is FALSE?

Select one of the options below and compare and contrast the paired terms: A. primary and secondary immune response B. passive and active immunity C. artificial and natural immunity

Protease inhibitors:

____ can phagocytose about 100 bacteria during their life spans, and release antiviral agents.

Which of the following immune system components has been identified in almost all organisms studied?

Figure 45-1 Based on the accompanying graph, which statement is accurate?

What class of antibodies is normally found in the mucosa of the respiratory tract?

Animal cells recognize common types of pathogen molecules and activate the production of antimicrobial peptides.

Which regulatory protein is mismatched with its function?

A View of Life

Atoms and Molecules the Chemical Basis of Life

The Chemistry of Life Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp Energy-Releasing Pathways

Photosynthesis Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure Growth and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function an Introduction

Protection Support and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters