Question

T cells expressing : TCRs are distinct from those expressing : TCRs in that

they do not generally recognize host cell responses to infections or tissue damage;
rather they recognize components of the pathogen directly.
A. True
B. False

Answer 1

Option (B), The statement is false because T cells with TCRs recognize processed antigens presented on MHC molecules by APCs, not components of pathogens directly like B cells with BCRs do.

Step-by-step explanation:

The statement T cells expressing TCRs are distinct from those expressing BCRs in that they do not generally recognize host cell responses to infections or tissue damage; rather they recognize components of the pathogen directly is false. T cells, specifically the ones expressing TCRs, do recognize antigens associated with infections or tissue damage.

However, they do not recognize these antigens directly like B cells do with their BCRs. Instead, T cells recognize processed antigens that are presented by major histocompatibility complex (MHC) molecules on the surface of antigen-presenting cells (APCs). B cells, on the other hand, can bind directly to intact antigens via their BCRs and do not necessarily require MHC molecules for antigen recognition.