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The three granulocytes are: (Please select all that apply).

A) Neutrophils
B) Lymphocytes
C) Monocytes
D) Eosinophils
E) Basophils

1 Answer

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Final answer:

The three granulocytes are Neutrophils, Eosinophils, and Basophils, characterized by having granules in their cytoplasms and lobed nuclei. Lymphocytes and Monocytes, options B and C, are not granulocytes but are instead agranulocytes.

Step-by-step explanation:

The three granulocytes present in the blood are:

  • A) Neutrophils – These are the most abundant white blood cells and are primarily involved in fighting bacterial infections. They have a multi-lobed nucleus and granules that stain light lilac.
  • D) Eosinophils – These cells target parasitic infections and are involved in allergic reactions. They have a bi-lobed nucleus and granules that stain reddish-orange.
  • E) Basophils – They are involved in allergic responses and have granules that stain dark blue to purple with a bi-lobed nucleus.

B and C, Lymphocytes and Monocytes, are categorized as agranulocytes, which lack visible granules in their cytoplasm. Monocytes differentiate into macrophages and dendritic cells, while lymphocytes, such as B and T cells, are responsible for the adaptive immune response.

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