Hemoglobin's affinity for carbon dioxide is higher in systemic capillaries than in pulmonary capillaries.

Question

Quizplus · Accepted Answer

Hemoglobin's affinity for carbon dioxide is higher in systemic capillaries than in pulmonary capillaries, which allows for efficient gas exchange in the lungs and throughout the body. In systemic capillaries, CO2 diffuses from tissues to the blood, where it binds to hemoglobin and forms carbaminohemoglobin. This reaction facilitates the release of oxygen from hemoglobin, which is then taken up by tissues for cellular respiration. In pulmonary capillaries, CO2 is released from carbaminohemoglobin and diffuses out of the blood to be exhaled.

Hemoglobin's Affinity for Carbon Dioxide Is Higher in Systemic Capillaries