Textbook Question
Class I MHC molecules display_____antigens and activate_____cells. Class II MHC molecules display _____antigens and activate_____cells.
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21. The Immune System
Introduction to T Lymphocytes
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Which receptor on the helper T-cell recognizes the specific antigen presented by an antigen-presenting cell?
A
CD4 receptor
B
CD8 receptor
C
T-cell receptor (TCR)
D
B-cell receptor (BCR)
Verified step by step guidance1
Understand the role of helper T-cells in the immune system. Helper T-cells are crucial for activating and directing other immune cells.
Learn about antigen-presenting cells (APCs). These cells display antigens on their surface using major histocompatibility complex (MHC) molecules.
Recognize the importance of the T-cell receptor (TCR). The TCR on helper T-cells specifically recognizes antigens presented by APCs.
Differentiate between CD4 and CD8 receptors. CD4 is found on helper T-cells and assists in binding to MHC class II molecules, while CD8 is found on cytotoxic T-cells and binds to MHC class I molecules.
Identify the correct receptor for antigen recognition. The T-cell receptor (TCR) is responsible for recognizing the specific antigen presented by the APC, not the CD4 or CD8 receptors.
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