The antibodies found almost entirely and only on the surface of B cells (not secreted from them),and which always exist as monomers,are
A)IgG.
B)IgM.
C)IgA.
D)IgD.
E)IgE.

Question

Quizplus · Accepted Answer

The antibodies found almost entirely and only on the surface of B cells, and which always exist as monomers, are IgD. IgD is important for activating B cells and initiating the humoral immune response. The other antibodies (IgG, IgM, IgA, and IgE) can also exist as monomers, but they are secreted from B cells into the bloodstream or mucosal surfaces.

The Antibodies Found Almost Entirely and Only on the Surface