Which of the following buffers works the fastest (in minutes to hours)? A) Hemoglobin Hb/HHb B) Bicarbonate/Carbonic acid (HCO₃/H₂CO₃) C) Phosphate (HPO₄/H₂PO₄) D) Ammonia (NH₃/NH₄)

Question

Quizplus · Accepted Answer

Bicarbonate/Carbonic acid buffer works the fastest as it is involved in the majority of acid-base regulation in the body and can quickly respond to changes in CO2 levels, which affects the pH of the blood. Hemoglobin buffer takes more time to respond as it mainly regulates carbon dioxide and oxygen levels in the blood. Phosphate buffer is a slower buffer system compared to the bicarbonate buffer, and Ammonia buffer is mainly used in the kidney for acid-base regulation.

Which of the Following Buffers Works the Fastest (In Minutes