Lymphocytes, monocytes?

Lymphocytes, monocytes?

• A. Platelets
• B. Erythrocytes
• C. Agranular WBCs
• D. Granular WBCs

Answer: (C)

Lymphocytes and monocytes are agranular white blood cells. Agranular leukocytes are white blood cells that lack prominent cytoplasmic granules when viewed under a light microscope, which sets them apart from granulocytes (neutrophils, eosinophils, and basophils) that do have noticeable granules. Platelets and erythrocytes are not white blood cells at all—platelets are cell fragments involved in clotting, and erythrocytes are red blood cells responsible for oxygen transport. So the best classification for lymphocytes and monocytes is agranular white blood cells.

Lymphocytes and monocytes are agranular white blood cells. Agranular leukocytes are white blood cells that lack prominent cytoplasmic granules when viewed under a light microscope, which sets them apart from granulocytes (neutrophils, eosinophils, and basophils) that do have noticeable granules. Platelets and erythrocytes are not white blood cells at all—platelets are cell fragments involved in clotting, and erythrocytes are red blood cells responsible for oxygen transport. So the best classification for lymphocytes and monocytes is agranular white blood cells.