BIO 355: Blood Cells - Functions, Production, and Recycling

p {margin: 0; padding: 0;} .ft00{font-size:18px;font-family:Calibri;color:#000000;} .ft01{font-size:18px;font-family:Calibri;color:#000000;} Red Blood Cells : Also called erythrocytes - Carry oxygen on hemoglobin Platelets : Split off from megakaryocytes - Clotting White Blood Cells : Also called leukocytes - Immunity Hematopoiesis - Hematopoiesis: Production of blood cells - Leukopoiesis: Production of white blood cells - Erythropoiesis: Production of red blood cells - Hematocrit: Ratio of red blood cells to plasma, expressed as percentage Red Blood Cells - No nucleus - Live for about 120 days - Hemoglobin components are recycled - Amino acids are incorporated into proteins - Some iron from heme groups is reused in new heme groups - Remnants of heme groups are converted to bilirubin, then excreted as bile - Bilirubin metabolizes are excreted in urine - Jaundice results from elevated levels of bilirubin