Final answer:
Old blood leads to the crenation and destruction of red blood cells, a process known as hemolysis, which can cause hemolytic anemia and affect oxygen transport in the body.
Step-by-step explanation:
Old blood will cause creation of red cells, which typically leads to hemolysis. This is the process by which erythrocytes (red blood cells) are destroyed and their hemoglobin is released into the bloodstream, potentially leading to hemolytic anemia. When erythrocytes lack sufficient energy due to ATP depletion, they are unable to maintain the activity of the Na+/K+-ATPase, leading to the increase of intracellular Na+ and consequent water influx resulting in cell swelling and lysis.
Hemolysis can also affect tissue oxygenation and cause a right shift in the hemoglobin oxygen-saturation curve, indicating a reduced oxygen affinity. In this case, hemolysis is the term that describes the destruction of erythrocytes and the release of their contents into the blood.