A red blood cell, visualized in a blood smear, appears to stain less intensely in the center of the cell than at the periphery. This light staining central region results from:
a. A centrally located Golgi apparatus
b. A greater accumulation of hemoglobin within the center of the cell
c. A pale-staining nucleus
d. An attenuation of the cytoplasm caused by the biconcave disk shape of the cell
e. Lipid droplets
ANS: D
A red blood cell lacks membranous organelles and has a thinner central region due to its shape.
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