Question 1

Some viruses will only infect the cells of the respiratory tract and no other types of cells.What can you infer from this fact? Explain your reasoning.

Accepted Answer

Since viruses must attach by binding to ...

Question 2

Adaptive immunity relies upon what general kinds of defenses?

Accepted Answer

A)   physical barriers to prevent pathogens from entering the body
B)   chemical barriers to prevent pathogens from entering the body
C)   lymphocytes that set off chains of events that inactivate or destroy invading pathogens
D)   A and B only
E)   A, B, and C

Question 3

Excessive inflammation in the lungs is potentially deadly because _________.

Accepted Answer

A)   it can cause the buildup of fluid and dead cells in the air spaces of the lungs, preventing gas exchange from taking place
B)   the buildup of white blood cells shuts down blood supply to the lungs; oxygen can't enter the blood and tissues
C)   dilated blood vessels collapse and can't carry oxygen to body tissues
D)   A and B only
E)   A, B, and C

Question 4

Tears and saliva contain an enzyme that _________.

Accepted Answer

A)   causes viruses to burst and die
B)   coats the cell surface of bacterial cells, making them more easily found and destroyed by phagocytes
C)   prevents viruses from binding to host cells, thus preventing infection
D)   breaks down bacterial cell walls, causing them to burst
E)   All of the above.

Question 5

It is difficult to develop a universal flu vaccine because _________.

Accepted Answer

A)   of antigenic shift
B)   it is difficult to produce noninfectious flu viruses to provide the antigen
C)   of the innate immune response
D)   it is difficult to determine the source of flu strains
E)   of excessive inflammatory response

Question 6

Name and provide one protective example of at least two innate immune system features.

Accepted Answer

antimicrobial chemicals - tears,stomach ...

Question 7

Neutrophils are found in the _____________,and macrophages are found in ____________.

Accepted Answer

A)   blood stream; tissues
B)   tissues; tissues
C)   blood stream; lymphatic system
D)   lymphatic system; blood stream
E)   Neutrophils and macrophages are both found ubiquitously.

Question 8

Which age group is most susceptible to an influenza virus that has undergone antigenic drift?

Accepted Answer

A)   young individuals (younger than 10 years) 
B)   older individuals (older than 65 years) 
C)   adults with healthy and developed immune systems (20 years to 40 years) 
D)   A and B
E)   A, B, and C

Question 9

Use the following diagram to answer Questions 
 
-Between points 1 and 2 on the diagram,_________.

Accepted Answer

A)   B and T cells are responding to antigens on pathogen B
B)   memory B and T cells are being used
C)   B cells are producing antibodies to pathogen A
D)   A and B only
E)   B and C only

Question 10

Alleles that carry slight alterations in hemagglutinin and/or neuraminidase due to antigenic drift are likely to cause which of the following immune responses?

Accepted Answer

A)   a slow primary immune response
B)   a large secondary immune response
C)   a large primary immune response
D)   B and C
E)   Neither a primary nor secondary immune response will be elicited.

Question 11

Which of the following represent the genetic material carried within a viral particle?

Accepted Answer

A)   RNA
B)   DNA
C)   protein coat
D)   A and B
E)   A, B, and C

Question 12

The inflammatory response is triggered when _________.

Accepted Answer

A)   a pathogen first invades host tissue
B)   phagocytes engulf pathogens
C)   complement proteins destroy bacteria, releasing signaling chemicals
D)   damaged cells release molecules that increase blood flow
E)   clotting reactions seal off the infected area

Question 13

_______ immunity provides general defense against a variety of pathogens,while _______ immunity provides defense against specific pathogens.

Accepted Answer

A)   Adaptive; innate
B)   Humoral; innate
C)   Cellular; adaptive
D)   Innate; adaptive
E)   Innate; cellular

Exam 31: Immune System Viral Mysteries

Alleles that carry slight alterations in hemagglutinin and/or neuraminidase due to antigenic drift are likely to cause which of the following immune responses?

Correct Answer
verified

Excessive inflammation in the lungs is potentially deadly because _________.

Correct Answer
verified

Which age group is most susceptible to an influenza virus that has undergone antigenic drift?

Correct Answer
verified

Neutrophils are found in the _,and macrophages are found in .

Correct Answer
verified

Use the following diagram to answer Questions -Between points 1 and 2 on the diagram,_________.

Correct Answer
verified

Some viruses will only infect the cells of the respiratory tract and no other types of cells.What can you infer from this fact? Explain your reasoning.

Correct Answer
verified
Since viruses must attach by binding to ...
View Answer

Name and provide one protective example of at least two innate immune system features.

Correct Answer
verified
antimicrobial chemicals - tears,stomach ...
View Answer

It is difficult to develop a universal flu vaccine because _________.

Correct Answer
verified

The inflammatory response is triggered when _________.

Correct Answer
verified

Which of the following represent the genetic material carried within a viral particle?

Correct Answer
verified

_ immunity provides general defense against a variety of pathogens,while _ immunity provides defense against specific pathogens.

Correct Answer
verified

Tears and saliva contain an enzyme that _________.

Correct Answer
verified

Adaptive immunity relies upon what general kinds of defenses?

Correct Answer
verified

Exam 31: Immune System Viral Mysteries

Alleles that carry slight alterations in hemagglutinin and/or neuraminidase due to antigenic drift are likely to cause which of the following immune responses?

Correct AnswerverifiedShow Answer

Excessive inflammation in the lungs is potentially deadly because _________.

Correct AnswerverifiedShow Answer

Which age group is most susceptible to an influenza virus that has undergone antigenic drift?

Correct AnswerverifiedShow Answer

Neutrophils are found in the _____________,and macrophages are found in ____________.

Correct AnswerverifiedShow Answer

Use the following diagram to answer Questions -Between points 1 and 2 on the diagram,_________.

Correct AnswerverifiedShow Answer

Some viruses will only infect the cells of the respiratory tract and no other types of cells.What can you infer from this fact? Explain your reasoning.

Correct AnswerverifiedSince viruses must attach by binding to ...View AnswerShow Answer

Name and provide one protective example of at least two innate immune system features.

Correct Answerverifiedantimicrobial chemicals - tears,stomach ...View AnswerShow Answer

It is difficult to develop a universal flu vaccine because _________.

Correct AnswerverifiedShow Answer

The inflammatory response is triggered when _________.

Correct AnswerverifiedShow Answer

Which of the following represent the genetic material carried within a viral particle?

Correct AnswerverifiedShow Answer

_______ immunity provides general defense against a variety of pathogens,while _______ immunity provides defense against specific pathogens.

Correct AnswerverifiedShow Answer

Tears and saliva contain an enzyme that _________.

Correct AnswerverifiedShow Answer

Adaptive immunity relies upon what general kinds of defenses?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Neutrophils are found in the _,and macrophages are found in .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Since viruses must attach by binding to ...
View Answer

Correct Answer
verified
antimicrobial chemicals - tears,stomach ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

_ immunity provides general defense against a variety of pathogens,while _ immunity provides defense against specific pathogens.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified