Which cell type has blue granules?

Which cell type has blue granules?

• A. Neutrophil
• B. Eosinophil
• C. Lymphocyte
• D. Basophil

Answer: (D)

Blue granules come from basophil granules, which stain with basic dyes in standard blood smear stains. When you look at a stained smear, basophils reveal prominent dark blue granules in the cytoplasm that can obscure the nucleus. By contrast, neutrophils show small pale granules, eosinophils have large red‑orange granules, and lymphocytes have little to no visible cytoplasmic granules and a large, dense nucleus. Basophils also release mediators like histamine and heparin during inflammatory and allergic responses.

Blue granules come from basophil granules, which stain with basic dyes in standard blood smear stains. When you look at a stained smear, basophils reveal prominent dark blue granules in the cytoplasm that can obscure the nucleus. By contrast, neutrophils show small pale granules, eosinophils have large red‑orange granules, and lymphocytes have little to no visible cytoplasmic granules and a large, dense nucleus. Basophils also release mediators like histamine and heparin during inflammatory and allergic responses.