What is the primary function of the hemoglobin molecule's heme group in oxygen transport?
A
To bind and transport carbon dioxide
B
To facilitate the transport of oxygen from the lungs to the tissues
✓
C
To regulate blood pH levels
D
To store and release oxygen in the muscles
Explanation
The heme group in hemoglobin is responsible for binding oxygen, allowing it to be transported from the lungs to the body's tissues.
Source
Guyton and Hall Textbook of Medical Physiology
Hematology
Hematology: Hemoglobin and Oxygen Transport
Hematology: Hemoglobin and Oxygen Transport
Easy
MEDICAL
Confidence: high
