Red blood cells in which of the following would likely contain the highest concentration of chloride ions in their cytoplasm?
A)left atrium
B)pulmonary vein
C)aorta
D)pulmonary artery
E)arteriolar end of a systemic capillary

Question

Quizplus · Accepted Answer

The pulmonary artery carries deoxygenated blood from the heart to the lungs, where carbon dioxide is exchanged for oxygen. This exchange is facilitated by the presence of a high concentration of chloride ions in the RBCs, which helps to maintain the balance of ions across the cell membrane. Therefore, RBCs in the pulmonary artery, which are preparing to release carbon dioxide, would likely have the highest concentration of chloride ions in their cytoplasm.

Red Blood Cells in Which of the Following Would Likely