Final answer:
Donor blood is real human blood used for transfusions and is not a blood substitute; the correct statement is false. Blood substitutes are artificial products used when donor blood is unavailable and matching blood type is essential for safe transfusions.
Step-by-step explanation:
The statement Donor blood is known as a blood substitute is false. Donor blood, also called allogeneic blood, is real human blood obtained from volunteer donors and used for blood transfusions. A blood substitute, on the other hand is an artificial substance that replicates some functions of biological blood, primarily its oxygen-carrying capability.
These are often used in emergency situations where specific donor blood types are not available and ongoing research aims to develop safe and effective artificial blood products. It's crucial to match the ABO blood group system during a transfusion to prevent adverse reactions in the recipient.