Answered: may be expressed by any nucleated cell…

may be expressed by any nucleated cell and are recognized by T lymphocytes both may be expressed by any nucleated cell and are recognized by B lymphocytes may be expressed by any nucleated cell

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter12: Body Defenses

Section: Chapter Questions

Problem 14RE

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Concept explainers

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.

Question

Major histocompatibility proteins (MHC) presented with an antigen:

are recognized by T lymphocytes

both may be expressed by any nucleated cell and are recognized by T lymphocytes

both may be expressed by any nucleated cell and are recognized by B lymphocytes

may be expressed by any nucleated cell

are recognized by B lymphocytes

Expert Solution

Step 1

MHC complex are of Two types

MHC class 1 are present on all nucleated cell and presents antigen on Cytotoxic T cells (Tc cells ).

MHC cLass 2 are present on Antigen presenting cells and presents antigen on helper T cells.

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