11 Questions
Which of the following is a fundamental difference between B cell and T cell antigen receptors?
B cell receptors recognize many types of chemical structures, while T cell receptors recognize only peptides bound to MHC molecules
What is the broad specificity of B cells in recognizing antigens?
B cells can recognize many types of chemical structures including proteins, lipids, carbohydrates, and nucleic acids
What ensures that T cells only interact with peptides displayed on antigen-presenting cells?
T cells recognize peptides bound to MHC molecules
Which of the following is NOT a function of antibodies?
Performing effector functions in cell-mediated immunity
What is the total number of possible receptors with unique binding sites?
~107-109 clones
Which of the following is true about TCRs?
They function as membrane receptors only
What do the constant regions of some secreted antibodies have the ability to bind to?
Proteins of the complement system
Which regions of the antigen receptor molecules are relatively conserved among all clones of lymphocytes?
Constant (C) regions
What are the regions of the antigen receptor molecules that bind antigens?
Complementarity-determining regions (CDRs)
What is the function of the invariant membrane proteins associated with antigen receptor chains?
To deliver intracellular signals
What is the term used to describe the set of plasma membrane antigen receptor and signaling molecules in B lymphocytes?
B cell receptor (BCR) complex
Test your knowledge on the antigen receptors of B and T lymphocytes and their roles in adaptive immunity. Learn about the similarities and differences in structure and signaling mechanisms, as well as the types of antigenic structures recognized by B cells and T cells.
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