immunology questions, short answer 21) The body\'s preexisting ability to recogn

Question

immunology questions, short answer

21) The body's preexisting ability to recognize and destroy pathogens or their products is called 22)migrate from blood to tissues, where they differentiate into phagocytic macrophages 23) A small part of an antigenic molecule that is recognized by an antibody, BCR, or TCR is known as aflan) 20 Some activated B cells are differentiated into 24) Some activated B cells are differentiated inteo cells that secrete antibodies. 25) In the small intestine, antigens enter from the gut across specialized epithelial cells called- -. 26) In addition to the production of antibodies and effector T cells, adaptive immune response results in which confers lifelong protective immunity to reinfection with the same pathogen. 27) When dendritic cells ingest antigen at the site of infected tissue, they migrate to thewhere they present the antigen to T lymphocytes. 28) Naive lymphocytes encounter antigens from the blood in a peripheral lymphoid organ called 29) What are the three possible outcomes of the complement activation? 30) As one of the major products of the complement activation, is accumulated on the bacterial cell surface which then facilitates phagocytosis. 31) In the complement system, many of the complement proteins are synthesized as inactive which only become enzymatically active after proteolytic cleavage, usually by another complement protein. 32) The lectin pathway can be triggered by PRRs such asthat circulate in blood and extracellular fluids that recognize carbohydrate on microbial surfaces. You will get some extra credit if you provide two PRRs.

Explanation / Answer

21) Adaptive immunity-

Adaptive immunity is known as antigen-specific immune response.

The adaptive immunity response is more complex than the innate immunity.

First recognized and processed antigen. On recognized antigen , the adaptive immune system produce an army of immune cells specifically formed to attack that antigen. Adaptive immunity has a "memory" that makes future responses opposite to a specific antigen more efficient.

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