B cell receptors differ from T cell receptors in that _______.

Question

Quizplus · Accepted Answer

Each choice accurately describes a difference between B cell receptors and T cell receptors: A) B cell receptors are indeed comprised of four polypeptides (two heavy chains and two light chains), whereas T cell receptors consist of two polypeptides. B) B cell receptors have two antigen-binding sites, allowing them to bind two antigens at once, while T cell receptors have only one antigen-binding site. C) B cell receptors are immunoglobulins, which is a class of proteins, whereas T cell receptors, although similar in function, are not classified as immunoglobulins. D) B cell receptors, in their soluble form, are known as antibodies and can be secreted, but T cell receptors are always membrane-bound and are never secreted.

B Cell Receptors Differ from T Cell Receptors in That