Final answer:
Increased levels of immunoglobulins are consistent with increased numbers of plasma cells, which are a type of lymphocyte that secrete antibodies.
Step-by-step explanation:
Increased levels of immunoglobulins are consistent with increased numbers of plasma cells. Plasma cells are a type of lymphocyte that have differentiated in response to antigen binding, and have gained the ability to secrete soluble antibodies. These cells contain a large amount of cytoplasm packed with the protein-synthesizing machinery known as rough endoplasmic reticulum.