This anion is an important part of a major buffer pair and therefore plays an important role in acid-base regulation.

Question

Quizplus · Accepted Answer

Bicarbonate (HCO₃-) is an anion that is an important part of a major buffer pair (H₂CO₃/HCO₃-) in the blood which helps to maintain a stable pH and therefore plays a crucial role in acid-base regulation. Sodium (Na+) is not an anion and does not play a direct role in the buffer system. Therefore, choices A and C are not the best options, while choice D includes both Bicarbonate and HCO₃-, making it the correct answer.

This Anion Is an Important Part of a Major Buffer