Why cant red blood cells divide in the bloodstream?
Red blood cells lack a nucleus for extra space to store hemoglobin. Since they don't go through mitosis they are constantly being made in bone marrow.
That is what makes stem cells different from ordinary cells. Stem cells aren't specialized for a single purpose but can change into many different types of cells. Blood cells are already changed and are nullipotent (meaning it can't change into a different cell). Once a cell has become a specialized (like blood cells) it can't change. Also stem cells have the ability to divide indefinitely, whereas the nullipotent cells can't.
Why would a person with leukemia have low numbers of red blood cells normal white blood cells and platelets in the blood?
A person with type A blood has antibodies against the type B red blood cells. Therefore, if red blood cells with type B antigens on it are introduced into the type A person's blood stream, the type A person's immune system would attack and destroy the type B red blood cells. Also, the type B person's blood has type A antibodies, which would cause a smaller-scale destruction of the type A person's red blood cells.
What makes blood red? Blood is actually a transparent (clear) fluid that contains cells inside. There are white cells which 'heals your body' in a certain case. And also red cells, their job is to transport oxygen to lung tissue and get rid of waste such as carbon dioxide. EXAMPLE: If you scrape your knee on concrete, you start bleeding (within reason) and red cells rush out of your body. Red cells are magnified 10,000…
Why cant people with blood type o receive a blood transfusion from any blood from people with a different type of blood?
The plasma and red blood cells of a person's blood account fully for both A and B antigens and antibodies in some combination, and if both A antigens and A antibodies are present in the same mixture, they react negatively to each other. Blood transfusions only deal with the red blood cells, which hold the antigens, but O type blood has both antibodies in the plasma, which will react negatively to any red blood cells…