________ function in pinocytosis, phagocytosis, antigen processing, and antigen presentation bound to Class II MHC proteins.
The portions of an antigen's exposed surfaces to which its specific antibody binds are regions called
B)the constant segments of the light and heavy chains.
The chemical mediators, which stimulate the production of neutrophils, eosinophils, and basophils, cause fever, and increase T cell sensitivity, are termed
C)tumor necrosis factors.
The specificity of an antibody molecule depends on the structure of which of the following?
A)the constant segments of the light and heavy chains
B)the constant and variable segments of the light and heavy chains
C)the variable segments of the light and heavy chains
D)the variable segments of the light chains only
E)the constant segments of the heavy chains only