Antigen- Middle Part Flashcards

1
Q

What are antigens that invade a host from outside and then grow in the hosts tissues and extracellular fluid?

A

Exogenous antigens

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2
Q

What antigens are processed in phagosomes in antigen-presenting cells, such as dendritic cells, macrophages, and B cells, to the adaptive immune system?

A

Exogenous antigens

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3
Q

What antigens are typified by bacteria?

A

Exogenous

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4
Q

What are antigens that are produced by a host cell?

A

Endogenous antigens

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5
Q

What antigens are processed by proteasomes in the cells in which they are produced?

A

Endogenous

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6
Q

What type of antigens are autoantigens (self-antigens) classified as?

A

Endogenous

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7
Q

Endogenous antigens have antigen presentation to what type of T cells?

A

CD8+

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8
Q

Exogenous antigens has antigen presentation to what type of T cells?

A

CD4+

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9
Q

What is the ability of an antigen to provoke an immune response in the body of a human or an animal?

A

Immunogenicity

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10
Q

What is the capacity of an antigen to bind specific T cells or B cells?

A

Antigenicity

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11
Q

What is when, in general, foreign proteins make the antigens of good immunogenicity?

A

Foreignness

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12
Q

How long does it take for a transplant to be rejected by the same species?

A

10 days

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13
Q

How long does it take for a transplant to be rejected by a different species?

A

Few hours

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14
Q

______ molecules are better antigens than ______ molecules

A

Larger
Small

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15
Q

What are clostridial toxin, bacterial flagella, and virus capsids examples of?

A

Large proteins

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16
Q

What type of polysaccharides are NOT good antigens because they are often degraded before the immune system has time to respond to them?

A

Simple

17
Q

More _______ carbohydrates may be effective antigens, especially if bound to proteins

A

Complex

18
Q

________-_____ glycoproteins of red blood cells are good antigens

A

Blood-group

19
Q

What type of antibodies are present in unimmunized animals?

A

Blood-group

20
Q

How are blood-group antibodies of unvaccinated animals present?

A

Through exposure from intestinal micro biota or food

21
Q

What type of red blood cell type has Anti-B antibodies in plasma?

A

Group A

22
Q

What type of red blood cell has A antigens in the blood?

A

Group A

23
Q

What type of antibodies do group B blood cell types have?

A

Anti-A

24
Q

What type of antigens are in group B red blood cells?

A

B antigens

25
Q

What type of antibodies are in group AB red blood cells plasma?

A

None

26
Q

What type of antibodies are in group O red blood cell plasma?

A

Anti-A and Anti-B

27
Q

What type of antigens are in group O red blood cells?

A

None

28
Q

The immunogenicity of an antigen is dictated by many factors, what is an example of one factor?

A

Route of administration

29
Q

How does a pig with type “O” get antibodies against blood type A and B antigens?

A

Immune responses to food and bacterial antigens

30
Q

Fishes are ________ ___________

A

Foreign antigens