When a healthy individual is first exposed to a particular type of infectious microbe, the adaptive...

When a healthy individual is first exposed to a particular type of infectious microbe, the adaptive immune system generates

a) an immediate response to highly conserved molecular patterns.

b) a delayed response to highly conserved molecular patterns. incorrect

c) an immediate response to very specific microbial antigens.

d) a delayed response to very specific microbial antigens.

Expert Solution

Answer : (d) a delayed response to very specific microbial antigens.

Immune response against a microbe can be divided into two types - Innate immune response and Adaptive immune response.

Innate immunity is the body's first line of defence against a microorganism. It is a nonspecific and rapid response against any foreign antigen. Innate immune response include physiological barriers like lysozyme in tears, hydrochloric acid in stomach, skin, phagocytic cells in the blood, the complement system, dendritic cells, natural killer cells etc.

Adaptive immune response is more delayed than the innate immunity and is more specific against a particular microbe or it's antigens. The antigen presentation to T lymphocytes activates them, which either directs the B lymphocytes for the production of antibodies (Humoral immunity) or directs the cytotoxic T cells to destroy the cell which harbours the organism (cell mediated immunity).

So, adaptive immunity is delayed response; more specific.

gladiator answered 2 years ago

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