Final answer:
The statement is false; hemoglobin transports both oxygen and carbon dioxide in the form of oxyhemoglobin and carbaminohemoglobin, respectively.
Step-by-step explanation:
The statement that hemoglobin serves to transport oxygen but NOT carbon dioxide is false. Hemoglobin is indeed well known for its role in oxygen transport; forming oxyhemoglobin when it binds to oxygen molecules, providing the bright red color of oxygenated blood. However, hemoglobin also plays a significant role in carbon dioxide transport. About 23–24 percent of carbon dioxide in the blood binds to the amino acids in hemoglobin to form carbaminohemoglobin. This allows carbon dioxide to be transported back to the lungs, where it is released and exchanged for oxygen.