Specific Immunity of Host

Question 1

Adaptive Immunity

Answer 1

It is an adaptation resulting from prior
exposure to a particular pathogen/marker
[Resistance is acquired and specific!]
It provides long-term protection against
future exposure to the pathogen. [The system has memory!]

Question 2

Innate immunity

Answer 2

Defenses against any pathogen

Question 3

Adaptive immunity

Answer 3

specific antibody and lymphocyte response to an antigen

Question 4

Nonspecific

Answer 4

The nonspecific system recognizes pathogens

via pathogen-associated molecular patterns (PAMPs). These are not unique markers.

Question 5

Summary of specific system and nonspecific system

Answer 5

Specific system – antigens
Important: The specific system recognizes
pathogens via particular (unique) markers present on the cell surface. The markers are called antigens.◦Nonspecific system – PAMPs

Question 6

Antigen (Ag)

Answer 6

A substance that causes the
body to produce specific antibodies or sensitized T cells
◦Antibodies (Ab) interact with epitopes or
antigenic determinants

Question 7

Hapten

Answer 7

Antigen is combined with carrier
molecules
◦Not antigen by itself due to small size