Deck 4: Microbial-Immunity

Question 1

For each of the descriptions of immune mechanisms in questions ,select the immune mechanism (A-D)that correctly matches it.
Adaptive immunity mechanism for eradicating established viral infection

A)Type I interferons (IFN-a,IFN-b)
B)CD8+ cytolytic T lymphocyte
C)Antibody
D)Natural killer cell

Answer 1

CD8+ cytolytic T lymphocyte

Question 2

Match the description of a vaccine in questions with the correct type of vaccine (A-G).
Composed of viral proteins synthesized from recombinant viral genes

A)Live attenuated or killed bacteria
B)Live attenuated oral virus
C)Synthetic viral subunit vaccines
D)Conjugate vaccines
E)Recombinant viral vectors
F)DNA vaccines
G)Purified subunit vaccines

Answer 2

Synthetic viral subunit vaccines

Question 3

Match the description of a vaccine in questions with the correct type of vaccine (A-G).
Composed of a recombinant nonpathogenic virus carrying genes of a pathogenic virus,such as HIV

A)Live attenuated or killed bacteria
B)Live attenuated oral virus
C)Synthetic viral subunit vaccines
D)Conjugate vaccines
E)Recombinant viral vectors
F)DNA vaccines
G)Purified subunit vaccines

Answer 3

Recombinant viral vectors

Question 4

A common strategy by which microbes survive their host's immune responses involves changing the structures of the molecules they produce so that they are no longer recognized by the host's immune system.This strategy,called antigenic variation,is most likely to allow evasion of which type of immune recognition?

A)Toll-like receptor-dependent recognition of microbes by cells of the innate immune system
B)Mannose receptor-dependent recognition of microbes by cells of the innate immune system
C)Antibody recognition of microbial cell surface molecules
D)Natural killer cell inhibitory receptor recognition of class I major histocompatibility complex (MHC)molecules on infected cells
E)T cell receptor recognition of microbial cell wall lipid antigens

Question 5

For each of the descriptions of immune mechanisms in questions ,select the immune mechanism (A-D)that correctly matches it.
Innate immunity mechanism for preventing viral infection of cells

A)Type I interferons (IFN-a,IFN-b)
B)CD8+ cytolytic T lymphocyte
C)Antibody
D)Natural killer cell

Question 6

Match the description of a vaccine in questions with the correct type of vaccine (A-G).
Induction of a T cell-dependent antibody response to polysaccharides,such as Haemophilus influenzae B and pneumococcal capsular polysaccharides

A)Live attenuated or killed bacteria
B)Live attenuated oral virus
C)Synthetic viral subunit vaccines
D)Conjugate vaccines
E)Recombinant viral vectors
F)DNA vaccines
G)Purified subunit vaccines

Question 7

Match the description of a vaccine in questions with the correct type of vaccine (A-G).
Composed of antigens purified from microbes or inactivated toxins,such as the tetanus toxoid vaccine

A)Live attenuated or killed bacteria
B)Live attenuated oral virus
C)Synthetic viral subunit vaccines
D)Conjugate vaccines
E)Recombinant viral vectors
F)DNA vaccines
G)Purified subunit vaccines

Question 8

Protection against extracellular bacterial infections such as with staphylococci,and extracellular fungi,,such as with Candida,is in part mediated by which of the rolling types of T cell responses?

A)Cytotoxic T lymphocytes
B)Th 1 cells
C)Th2 cells
D)Th17 cells
E)Regulatory T cells

Question 9

For each of the descriptions of immune mechanisms in questions ,select the immune mechanism (A-D)that correctly matches it.
Adaptive immunity mechanism for preventing a viral infection

A)Type I interferons (IFN-a,IFN-b)
B)CD8+ cytolytic T lymphocyte
C)Antibody
D)Natural killer cell

Question 10

Match the description of a vaccine in questions with the correct type of vaccine (A-G).
Good induction of mucosal immunity but risk of developing a viral disease,especially in immunocompromised hosts

A)Live attenuated or killed bacteria
B)Live attenuated oral virus
C)Synthetic viral subunit vaccines
D)Conjugate vaccines
E)Recombinant viral vectors
F)DNA vaccines
G)Purified subunit vaccines

Question 11

Some viruses evade CTL-mediated immunity by expressing molecules that have which of the following actions?

A)Inhibition of the TAP peptide transporter
B)Inhibition of proteolysis of the invariant chain
C)Stimulation of proteasome activity
D)Activation of immune regulatory factors (IRFs)
E)Inhibition of IL-5 production

Question 12

For each of the descriptions of immune mechanisms in questions ,select the immune mechanism (A-D)that correctly matches it.
Innate immunity mechanism for eradicating viraly infected cells

A)Type I interferons (IFN-a,IFN-b)
B)CD8+ cytolytic T lymphocyte
C)Antibody
D)Natural killer cell