Final Answer:
Mature naive B cells express high levels of IgD on their cell surfaces.So the correct option is B) IgD
Step-by-step explanation:
Antibodies play a crucial role in the immune system, and their production is regulated by B cells. Mature naive B cells express various types of immunoglobulins (Ig) on their surfaces, each serving specific functions. In this context, the correct answer is (B) IgD. IgD is one of the two surface immunoglobulins found on mature B cells, the other being IgM.
These immunoglobulins function as antigen receptors, allowing B cells to recognize and bind to specific antigens. IgD, in particular, is involved in the activation of B cells and the initiation of the immune response.
Mature naive B cells undergo a process called class switching, where they can switch the type of immunoglobulin they express on their surfaces. While IgD is initially expressed, the B cells may later switch to other classes such as IgA, IgE, or IgG based on the type of immune response required. However, the question specifically asks about the high levels of immunoglobulin expressed on mature naive B cells, and in this context, IgD is the predominant type.
Understanding the distribution and functions of immunoglobulins on B cells is essential in comprehending the immune response and how the body defends itself against pathogens. In summary, the high levels of IgD on the surface of mature naive B cells make it the correct choice in this scenario. So the correct option is B) IgD