Which item is NOT listed as a component of blood in the material?

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Multiple Choice

Which item is NOT listed as a component of blood in the material?

Explanation:
The concept tested is distinguishing between components of blood and substances contained inside blood cells. Blood is described as plasma plus formed elements. The formed elements are red blood cells, white blood cells, and platelets. Hemoglobin, however, is the oxygen-carrying protein located inside red blood cells, not a separate component of blood itself. Because it’s contained within the cells rather than existing as its own component, it isn’t listed as an independent component in standard descriptions. That’s why hemoglobin is the item that isn’t listed as a separate blood component.

The concept tested is distinguishing between components of blood and substances contained inside blood cells. Blood is described as plasma plus formed elements. The formed elements are red blood cells, white blood cells, and platelets. Hemoglobin, however, is the oxygen-carrying protein located inside red blood cells, not a separate component of blood itself. Because it’s contained within the cells rather than existing as its own component, it isn’t listed as an independent component in standard descriptions. That’s why hemoglobin is the item that isn’t listed as a separate blood component.

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