Red blood cells (RBCs) or erythrocytes are biconcave shaped cells, which contain hemoglobin for oxygen transport from lungs to different tissues. These cells lack a nucleus, mitochondria, ribosomes, and other organelles. RBCs are produced in red bone marrow and each RBC has a life span of 120 days.

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Chapter 20, Problem 2RC

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Red blood cells (RBCs) or erythrocytes are biconcave shaped cells, which contain hemoglobin for oxygen transport from lungs to different tissues. These cells lack a nucleus, mitochondria, ribosomes, and other organelles. RBCs are produced in red bone marrow and each RBC has a life span of 120 days.

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