Which of these statements describes the immunoglobulin IgM
A)It serves as the B-cell surface receptor for antigen attachment.
B)It is found in milk and tears.
C)It mediates common allergic reactions such as hay fever, asthma, and hives.
D)It is the most abundant antibody produced by plasma cells.

Question

Quizplus · Accepted Answer

IgM serves as the B-cell surface receptor for antigen attachment, playing a crucial role in the early stages of the immune response. It is the first antibody type produced in response to an infection.

Which of These Statements Describes the Immunoglobulin IgM