Which type of white blood cell is characterized as agranular?

The lymphocyte is characterized as an agranular white blood cell. Agranular leukocytes are those that lack visible granules in their cytoplasm. Lymphocytes, which include T cells, B cells, and natural killer cells, play a crucial role in the immune response, such as recognizing pathogens and generating antibodies. Their identification as agranular sets them apart from other types of leukocytes that contain granules filled with enzymes and chemicals that are involved in immune response and inflammation. Understanding the classification of white blood cells, including the distinction between agranular and granular types, is essential for analyzing immune function and pathology in biomedicine.