Step-by-step explanation:
True. Iron is necessary for oxygen transport in red blood cells. Hemoglobin, the protein in red blood cells responsible for binding and transporting oxygen, contains iron at its core. Iron binds to oxygen in the lungs, forming oxyhemoglobin, and releases it in the body's tissues where it's needed for cellular respiration. Without iron, the body cannot produce sufficient hemoglobin, leading to anemia and impaired oxygen transport.