An Important Buffer in Body Fluids Is

Question

An important buffer in body fluids is
A) NaCl.
B) NaOH.
C) HCl.
D) NaHCO3.
E) H2O.

Accepted Answer

Sodium bicarbonate (NaHCO3) is an important buffer in body fluids. It helps to regulate pH by reacting with acids to form carbonic acid (H2CO3), which then breaks down into water and carbon dioxide, effectively neutralizing the acid.