Which chemical buffer system primary buffers against pH changes in the urine?
A) bicarbonate.
B) protein.
C) hemoglobin.
D) phosphate
E) carbon dioxide

Question

Quizplus · Accepted Answer

The phosphate buffer system is the primary buffer system in the urine, which helps maintain a pH range of 4.5-8.0. Phosphates are involved in both acid and base reactions, which allows the buffer system to regulate large fluctuations in pH caused by dietary habits and other factors. Bicarbonate buffer system is primarily responsible for buffering blood pH. Protein and hemoglobin can act as buffers, but they are not the primary buffers in urine. Carbon dioxide also plays a role in buffering pH in blood but not in urine.

Which Chemical Buffer System Primary Buffers Against PH Changes in the Urine