227k views
0 votes
During B cell activation, 'linked recognition' refers to the idea that the B and T cell:

a) Have identical receptors
b) Recognize the same antigen
c) Interact simultaneously
d) Share MHC molecules

1 Answer

6 votes

Final answer:

Linked recognition during B cell activation refers to the simultaneous interaction between B cells and helper T cells, whereby the B cell presents an antigen and the T cell provides activation signals.

Step-by-step explanation:

During B cell activation, 'linked recognition' refers to the idea that the B and T cell interact simultaneously. This concept is central to the immune response and involves the collaboration between these two types of lymphocytes. B cells function as antigen-presenting cells (APCs), processing and presenting antigen on their surface bound to MHC class II molecules. Once the antigen is presented, the B cell requires help from a specific T cell, known as a helper T cell, which has already encountered and been activated by the same antigen. The T cell binds to the antigen-MHC complex using its receptor and activates the B cell by secreting cytokines, enabling the B cell to fully activate and produce antibodies specific to the antigen.

User RochesterinNYC
by
8.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories