Identify A, B, and C from the above diagrams and give their functions.
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Identify them by their nucleus: \textbf{N}eutrophil has a "\textbf{N}umerous-lobed" nucleus. \textbf{E}osinophil has an "\textbf{E}ar-muff" (bilobed) nucleus. \textbf{M}onocyte has a "\textbf{M}assive" kidney-shaped nucleus.
The diagrams show three different types of white blood cells (leukocytes).
A is a Neutrophil:
Identification: It is identified by its multi-lobed nucleus (typically 3-5 lobes connected by thin strands) and fine, granular cytoplasm.
Function: Neutrophils are highly phagocytic cells. They are the most abundant type of WBC and act as the first line of defense against bacterial infections by engulfing and destroying pathogens.
B is an Eosinophil:
Identification: It is characterized by its bilobed nucleus (resembling headphones or spectacles) and large, coarse cytoplasmic granules that stain reddish-pink with acidic dyes like eosin.
Function: Eosinophils are primarily involved in combating parasitic infections (especially helminths or worms) and also play a significant role in modulating allergic inflammatory responses.
C is a Monocyte:
Identification: It is the largest of all WBCs and is identified by its large, kidney-bean or C-shaped nucleus and abundant, non-granular (agranular) cytoplasm.
Function: Monocytes are also phagocytic. They circulate in the blood for a few days before migrating into tissues, where they differentiate into macrophages. Macrophages are powerful phagocytes that engulf pathogens, dead cells, and cellular debris.
