Question 1

An individual can receive injections of an antiserum or purified antibodies derived from an immune individual.

Accepted Answer

A) True 
 B)False

Question 2

What is antigen presentation?

Accepted Answer

Antigen presentation is the transportati

Question 3

Assume you are the procurement manager of the medical charity "Doctors Without Borders" and there was an imminent infectious disease epidemic threat in a remote village in Africa. The epidemic can be prevented by vaccinating the population of interest. However, due to bad roads and lack of fast transportation services to reach the site of interest, which type of vaccine would you purchase for this job considering the length of time it would take to reach the affected site and why? A live attenuated virus or killed virus vaccines?

Accepted Answer

Since attenuated viruses are difficult t

Question 4

Stem cells are produced and developed in the

Accepted Answer

A)  bone marrow. 
B)  stems of plants. 
C)  liver. 
D)  brain. 
A)  bone marrow. 
B)  stems of plants. 
C)  liver. 
D)  brain.

Question 5

Adaptive immunity occurs when

Accepted Answer

A)  death results from pathogen infection. 
B)  the innate immune response fails to eliminate completely pathogens in the body. 
C)  virulent pathogen infections still persist in the body after the initial innate defense response. 
D)  both A and B occur. 
A)  death results from pathogen infection. 
B)  the innate immune response fails to eliminate completely pathogens in the body. 
C)  virulent pathogen infections still persist in the body after the initial innate defense response. 
D)  both A and B occur.

Question 6

Explain why an individual lymphocyte clone that interacts with an LPS constituent on Salmonella will not react with the LPS on other bacteria.

Accepted Answer

The adaptive response is inducible only

Question 7

Which of cell type has NO nucleus?

Accepted Answer

A)  lymphocytes 
B)  phagocyte 
C)  erythrocytes 
D)  all of the above 
A)  lymphocytes 
B)  phagocyte 
C)  erythrocytes 
D)  all of the above

Question 8

Explain how antibodies are produced.

Accepted Answer

B cells bind antigens. The surface antib

Question 9

Describe septic shock.

Accepted Answer

Septic shock results when large amounts

Question 10

An antigen must be at least_________ amino acids long to be effective.

Accepted Answer

A)  100 
B)  50 
C)  10 
D)  25 
A)  100 
B)  50 
C)  10 
D)  25

Question 11

The essential protective role for T cell immunity is protection from_________ .

Accepted Answer

intracellu

Question 12

Viruses used for making the polio vaccine are inactivated with_________ .

Accepted Answer

The answer of Viruses used for making the polio vaccine...

Question 13

Which of the following is TRUE about cytokines?

Accepted Answer

A)  They play an important role in immunity. 
B)  They play a role in the growth of stem cells. 
C)  They are proteins. 
D)  All of the above are true. 
A)  They play an important role in immunity. 
B)  They play a role in the growth of stem cells. 
C)  They are proteins. 
D)  All of the above are true.

Question 14

Which of the following can cause allergy symptoms and inflammation by degranulation?

Accepted Answer

A)  polymorphonuclear leukocyte 
B)  macrophage 
C)  dendritic cells 
D)  erythrocytes 
A)  polymorphonuclear leukocyte 
B)  macrophage 
C)  dendritic cells 
D)  erythrocytes

Question 15

Infants acquire natural passive immunity from maternal antibodies transferred across the placenta or in breast milk.

Accepted Answer

A) True 
 B)False

Question 16

All the following can cause contact dermatitis EXCEPT

Accepted Answer

A)  jewelry. 
B)  superantigens. 
C)  poison ivy. 
D)  latex gloves. 
A)  jewelry. 
B)  superantigens. 
C)  poison ivy. 
D)  latex gloves.

Question 17

How does the body respond when it encounters a foreign particle or bacterial pathogen?

Accepted Answer

The body has defensive cells called phag

Question 18

Erythrocytes are the most numerous cells in human blood.

Accepted Answer

A) True 
 B)False

Question 19

The process by which antibodies block interactions between pathogens or their products and host cells is termed

Accepted Answer

A)  interference. 
B)  attenuation. 
C)  neutralization. 
D)  complement. 
A)  interference. 
B)  attenuation. 
C)  neutralization. 
D)  complement.

Question 20

In Hashimotos's disease autoantibodies are made against_________ , a product of the thyroid gland.

Accepted Answer

A)  hemoglobin 
B)  bacteria 
C)  viruses 
D)  thyroglobulin 
A)  hemoglobin 
B)  bacteria 
C)  viruses 
D)  thyroglobulin

Exam 28: Immunity and Host Defense

An individual can receive injections of an antiserum or purified antibodies derived from an immune individual.

What is antigen presentation?

Stem cells are produced and developed in the

Adaptive immunity occurs when

Explain why an individual lymphocyte clone that interacts with an LPS constituent on Salmonella will not react with the LPS on other bacteria.

Which of cell type has NO nucleus?

Explain how antibodies are produced.

Describe septic shock.

An antigen must be at least_________ amino acids long to be effective.

The essential protective role for T cell immunity is protection from_________ .

Viruses used for making the polio vaccine are inactivated with_________ .

Which of the following is TRUE about cytokines?

Which of the following can cause allergy symptoms and inflammation by degranulation?

Infants acquire natural passive immunity from maternal antibodies transferred across the placenta or in breast milk.

All the following can cause contact dermatitis EXCEPT

How does the body respond when it encounters a foreign particle or bacterial pathogen?

Erythrocytes are the most numerous cells in human blood.

The process by which antibodies block interactions between pathogens or their products and host cells is termed

In Hashimotos's disease autoantibodies are made against_________ , a product of the thyroid gland.

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Nutrition, Culture, and Metabolism of Microorganisms

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Molecular Biology of Bacteria

Archael and Eukaryotic Molecular Biology

Regulation of Gene Expression

Viruses and Virology

Genetics of Bacteria and Arachaea

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Phototrophy, Chemolithotrophy, and Major Biosyntheses

Catabolism of Organic Compounds

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Microbial Evolution and Systematics

Bacteria: the Proteobacteria

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Eukaryotic Cell Biology and Eukaryotic Microorganisms

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Methods in Microbial Ecology

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Microbial Symbioses

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Microbial Interactions With Humans

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Molecular Immunology

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