GED Science Practice

A lymphocyte is primarily classified as an agranulocytic leukocyte, which means it is a type of white blood cell that lacks granules in its cytoplasm. Lymphocytes play a crucial role in the immune system, particularly in fighting infections and diseases. They are essential for identifying and responding to pathogens, such as viruses and bacteria, and are crucial in adaptive immunity. In contrast to the other options, a lymphocyte is not a malignant tumor, nor is it a disease caused by parasites or molten rock. The focus on its classification as a type of leukocyte highlights its importance in the body's immune response and distinguishes it from other types of cells and conditions.