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Showing posts from July, 2021

RED BLOOD CELLS

Red blood cell , also called erythrocyte . Red blood cells are the key of life.They are constantly traveling through your body , delivering oxygen and removing waste . If they didn't do their job , you would slowly die.  RBCs contain a protein called hemoglobin. Hemoglobin contain iron which makes it an excellent vehicle for transporting oxygen and carbon dioxide.    Internal structure   RBCs are considered cell, they lack a nucleus , nuclear DNA . RBCs therefore can't divide or replicate like other cells of the body . They also lack the components to express genes and synthesize protein .  Also read -  Endangered species How RBC  works? The red blood cell develop in bone marrow in several stages from a heamocytoblast , a multi potential cell in the mesenchyme , it becomes an erthroblast , during two to five days of development , the erthroblast gradually fills with hemoglobin and its nucleus and mitochondria disappear . In late stage the cell is called a reticulocyte , which u