Which root refers to white color or white blood cells?

Which root refers to white color or white blood cells?

• A. eryth
• B. alb
• C. melan
• D. leuk

Answer: (D)

This question tests a root that signals white, in both color terms and a specific cell type. The form leuk- (often seen as leuk/o or leuko-) means white. It appears in words like leukocyte, which is a white blood cell, and leukemia, a disease involving white blood cells. That dual sense—white color and white blood cells—makes leuk- the best fit here. The other roots point to red (eryth-) or black (melan-) and alb- is a less common way to indicate whiteness in some terms, but leuk- is the standard root linking white color and white blood cells.

This question tests a root that signals white, in both color terms and a specific cell type. The form leuk- (often seen as leuk/o or leuko-) means white. It appears in words like leukocyte, which is a white blood cell, and leukemia, a disease involving white blood cells. That dual sense—white color and white blood cells—makes leuk- the best fit here. The other roots point to red (eryth-) or black (melan-) and alb- is a less common way to indicate whiteness in some terms, but leuk- is the standard root linking white color and white blood cells.