Final answer:
The white pulp that produces lymphocytes and antibodies is located in the spleen, where it plays a key role in the adaptive immune response.
Step-by-step explanation:
The white pulp that produces lymphocytes and antibodies is found in the spleen. This tissue is rich in lymphocytes, including B cells and T cells, which are crucial components of the adaptive immune response. While B cells are responsible for humoral immunity and produce antibodies, T cells are associated with cell-mediated immunity.
Both B cells and T cells originate from the red bone marrow and undergo maturation processes; B cells mature in the bone marrow itself, and T cells mature in the thymus. The spleen functions as a filtration system of the blood and is where adaptive immune responses are mounted.