Question

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question 1
what is necessary for the transport of oxygen by an erythrocyte?
a hemoglobin
b mitochondria
c granules
d albumin

Explanation:

Erythrocytes (red blood cells) transport oxygen. Hemoglobin is the protein in erythrocytes that binds to oxygen. Mitochondria are for energy production (not in mature erythrocytes). Granules are in other cell types (e.g., some white blood cells). Albumin is a plasma protein (not for oxygen transport in erythrocytes).

Answer:

A. hemoglobin