structure, function and production of RBC Exam Study Guide Solutions
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Course
Red Blood Cells
Institution
Red Blood Cells
structure, function and production of RBC
Exam Study Guide Solutions
Erythrocyte - ANSWER-A mature red blood cell.
-contain the oxygen-carrying protein hemoglobin, which is a pigment that gives whole blood its red color.
hemoglobin - ANSWER-A substance in red blood cells consisting of the prote...
-certain glycolipids in the plasma membrane of RBCs are antigens that account for the various blood
groups such as the ABO and Rh groups.
RBC nucleus - ANSWER✔✔--lack a nucleus and other organelles and can neither reproduce nor carry on
extensive metabolic activities.
RBC cytosol - ANSWER✔✔--contains hemoglobin molecules; these important molecules are synthesized
before loss of the nucleus during RBC production and constitute about 33% of the cell's weight.
RBC Physiology - ANSWER✔✔--highly specialized for their oxygen transport function.
-all internal space is available for oxygen transport.
-lack mitochondria and generate ATP anaerobically (without oxygen), they do not use up any of the
oxygen they transport.
-the shape of an RBC facilitates its function. A biconcave disc has a much greater surface area for the
diffusion of gas molecules into and out of the RBC.
Hemoglobin - ANSWER✔✔--consists of a protein called globin, composed of four polypeptide chains
(two alpha and two beta chains)
-Each RBC contains about 280 million hemoglobin molecules.
-transports about 23% of the total carbon dioxide, a waste product of metabolism.
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