Question 1

Acute phase response proteins:

Accepted Answer

A) include C-reactive protein (CRP)and mannose-binding protein (MBP) 
B) all bind to and coat the surface of the infectious agent 
C) directly destroy abnormal cells 
D) increase resistance of cells to viral infection 
A) include C-reactive protein (CRP)and mannose-binding protein (MBP) 
B) all bind to and coat the surface of the infectious agent 
C) directly destroy abnormal cells 
D) increase resistance of cells to viral infection

Question 2

Phagocytic leukocytes that contain oxidative chemicals to kill internalized microorgansisms are called _____.

Accepted Answer

A) lymphocytes 
B) platelets 
C) mast cells 
D) neutrophils 
A) lymphocytes 
B) platelets 
C) mast cells 
D) neutrophils

Question 3

Defensins:

Accepted Answer

A) are located within the lysosomal vesicles of phagocytes 
B) are enzymes secreted by natural killer cells 
C) defend against parasitic worms 
D) are receptors for distinguishing between microorganisms 
A) are located within the lysosomal vesicles of phagocytes 
B) are enzymes secreted by natural killer cells 
C) defend against parasitic worms 
D) are receptors for distinguishing between microorganisms

Question 4

Tissue debris,remains of digested microorganisms,injured cells and dead phagocytes is the content of:

Accepted Answer

A) pus 
B) plasma 
C) opsonin 
D) tonsils 
A) pus 
B) plasma 
C) opsonin 
D) tonsils

Question 5

A phagocytic cell:

Accepted Answer

A) contains phagolysosomes that fuses with a phagosome to produce a lysosome 
B) must first adhere to an infectious agent before it can find it 
C) in the blood would include monocytes and neutrophils 
D) refers to the oxidative chemicals that kill internalized microorganisms 
A) contains phagolysosomes that fuses with a phagosome to produce a lysosome 
B) must first adhere to an infectious agent before it can find it 
C) in the blood would include monocytes and neutrophils 
D) refers to the oxidative chemicals that kill internalized microorganisms

Question 6

A multilobed lymphatic organ that functions to process lymphocytes known as T cells and release them into the blood is the:

Accepted Answer

A) tonsil 
B) trachea 
C) thymus gland 
D) salivary gland 
A) tonsil 
B) trachea 
C) thymus gland 
D) salivary gland

Question 7

Toll-like receptors:

Accepted Answer

A) come from outside the body and stimulate a cytokine 
B) act nonspecifically to cause cell killing 
C) are a set of receptors that when activated produce a membrane attack complex 
D) recognize molecular patterns unique to pathogens 
A) come from outside the body and stimulate a cytokine 
B) act nonspecifically to cause cell killing 
C) are a set of receptors that when activated produce a membrane attack complex 
D) recognize molecular patterns unique to pathogens

Question 8

What is the fragile,reddish,grainy tissue that is typically observed in cut tissue and consists of capillaries and fibroblasts?

Accepted Answer

A) Gut-associated lymphoid tissue 
B) Granulation tissue 
C) Granuloma 
D) Granulocytes 
A) Gut-associated lymphoid tissue 
B) Granulation tissue 
C) Granuloma 
D) Granulocytes

Question 9

Complement activation results in all of the following physiological processes EXCEPT:

Accepted Answer

A) opsonization 
B) formation of membrane attack complexes 
C) inflammation 
D) fever 
A) opsonization 
B) formation of membrane attack complexes 
C) inflammation 
D) fever

Question 10

Physical barriers of nonspecific defenses:

Accepted Answer

A) include both the cells that line the body surfaces and the chemicals they secrete 
B) include phagocytes and interferon 
C) respond to antigens by making thousands of different antibodies 
D) are part of the host immune defenses 
A) include both the cells that line the body surfaces and the chemicals they secrete 
B) include phagocytes and interferon 
C) respond to antigens by making thousands of different antibodies 
D) are part of the host immune defenses

Question 11

Specific defenses:

Accepted Answer

A) function against any infectious agent 
B) include phagocytes and interferon 
C) includes only noncellular defenses 
D) respond to a particular infectious agent 
A) function against any infectious agent 
B) include phagocytes and interferon 
C) includes only noncellular defenses 
D) respond to a particular infectious agent

Question 12

Region "B" in this image drains lymph into the:

Accepted Answer

A) left subclavian vein 
B) left subclavian artery 
C) brachiocephalic vein 
D) coronary veins 
A) left subclavian vein 
B) left subclavian artery 
C) brachiocephalic vein 
D) coronary veins

Question 13

Leukocytes responsible for killing intracellular viruses are _____.

Accepted Answer

A) fixed macrophages 
B) basophils 
C) granulocytes 
D) natural killer cells 
A) fixed macrophages 
B) basophils 
C) granulocytes 
D) natural killer cells

Question 14

During inflammation,permeable capillary walls allow accumulation of fluids near injured cells causing which of the following?

Accepted Answer

A) calor 
B) redness 
C) edema 
D) blood clotting 
A) calor 
B) redness 
C) edema 
D) blood clotting

Question 15

Which statement about chemical barriers is false?

Accepted Answer

A) high salt content of sweat inhibits the growth of bacteria 
B) chemical barriers include mechanisms to limit free iron 
C) secreted defensins form pores in microbes membranes 
D) chemical barriers include eosinophils and macrophages 
A) high salt content of sweat inhibits the growth of bacteria 
B) chemical barriers include mechanisms to limit free iron 
C) secreted defensins form pores in microbes membranes 
D) chemical barriers include eosinophils and macrophages

Question 16

Antiviral proteins (AVPs)interfere with the production of which of the following molecules?

Accepted Answer

A) DNA 
B) lipids 
C) mRNA 
D) all of the above 
A) DNA 
B) lipids 
C) mRNA 
D) all of the above

Question 17

What is the body's first line of defense against microbial danger? Why are these considered non-specific? Why are these considered innate? Is non-specific a better description than innate?

Accepted Answer

The body's first line of defense against

Question 18

Sequential steps taken by a phagocytic cell destroying an invading microorganism include:

Accepted Answer

A) chemotaxis →adherence→ingestion →digestion 
B) finding→filtering→secreting enzymes →streptolysin 
C) chemotaxis→granuloma→adherence→histamine 
D) finding→invading→clotting→regulating temperature 
A) chemotaxis →adherence→ingestion →digestion 
B) finding→filtering→secreting enzymes →streptolysin 
C) chemotaxis→granuloma→adherence→histamine 
D) finding→invading→clotting→regulating temperature

Question 19

What chemical substance diffuses into venules and capillaries causing their vasodilation during inflammation?

Accepted Answer

A) Bradykinin 
B) Antibradykinin 
C) Histamine 
D) Antihistamine 
A) Bradykinin 
B) Antibradykinin 
C) Histamine 
D) Antihistamine

Question 20

The classical pathway of complement activation involves which of the following proteins?

Accepted Answer

A) C1, C4 and C2 
B) C3 only 
C) factor B 
D) factor D and factor P 
A) C1, C4 and C2 
B) C3 only 
C) factor B 
D) factor D and factor P

Exam 16: Innate Host Defenses

Acute phase response proteins:

Phagocytic leukocytes that contain oxidative chemicals to kill internalized microorgansisms are called _____.

Defensins:

Tissue debris,remains of digested microorganisms,injured cells and dead phagocytes is the content of:

A phagocytic cell:

A multilobed lymphatic organ that functions to process lymphocytes known as T cells and release them into the blood is the:

Toll-like receptors:

What is the fragile,reddish,grainy tissue that is typically observed in cut tissue and consists of capillaries and fibroblasts?

Complement activation results in all of the following physiological processes EXCEPT:

Physical barriers of nonspecific defenses:

Specific defenses:

Region "B" in this image drains lymph into the:

Leukocytes responsible for killing intracellular viruses are _____.

During inflammation,permeable capillary walls allow accumulation of fluids near injured cells causing which of the following?

Which statement about chemical barriers is false?

Antiviral proteins (AVPs)interfere with the production of which of the following molecules?

What is the body's first line of defense against microbial danger? Why are these considered non-specific? Why are these considered innate? Is non-specific a better description than innate?

Sequential steps taken by a phagocytic cell destroying an invading microorganism include:

What chemical substance diffuses into venules and capillaries causing their vasodilation during inflammation?

The classical pathway of complement activation involves which of the following proteins?

Scope and History of Microbiology

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: the Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Immunology I: Basic Principles of Adaptive Immunity and Immunization

Immunology Ii: Immunological Disorders and Tests

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, lymphatic and Systemic Disease

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

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