Which cell type has red granules?

Which cell type has red granules?

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

Answer: (C)

The cell type with red granules is eosinophil. In standard cytology stains, the cytoplasmic granules of eosinophils take up the acidic dye eosin and appear bright red or orange, reflecting their content of basic proteins like major basic protein. This staining pattern helps distinguish them from neutrophils, whose granules stain more neutrally or pale pink; basophils, whose granules stain dark blue or purple with basic dyes; and lymphocytes, which have little visible cytoplasm granulation. Eosinophils are particularly linked to responses against parasites and roles in allergic processes, which ties to their distinctive granule content and staining.

The cell type with red granules is eosinophil. In standard cytology stains, the cytoplasmic granules of eosinophils take up the acidic dye eosin and appear bright red or orange, reflecting their content of basic proteins like major basic protein. This staining pattern helps distinguish them from neutrophils, whose granules stain more neutrally or pale pink; basophils, whose granules stain dark blue or purple with basic dyes; and lymphocytes, which have little visible cytoplasm granulation. Eosinophils are particularly linked to responses against parasites and roles in allergic processes, which ties to their distinctive granule content and staining.