An immature form of these cells expresses CD71 on their surface. The function of these non-kidney cells depends on AE1, which exchanges chloride and bicarbonate ions. Reticulocytes must undergo organelle expulsion before maturing (10[1])into these cells. (10[2])These cells can release (10[1])ATP (10[2])when subject to vigorous flow. Decreasing carbon dioxide concentration greatly increases (10[1])the efficiency of these cells according to the Bohr effect. These cells assume a biconcave disk (10[1])shape (10[1])to allow for a high surface-area-to-volume (10[2])ratio to facilitate the diffusion of gasses. For 10 points, name these hemoglobin-rich cells that transport oxygen to tissues through the circulatory system. ■END■