Question

Which of the following represents the complete chemical reaction for the bicarbonate buffer system?

A. CO₂ + H₂O H₂CO₃ HCO₃ + H+
B. CO₂ + H₂O HCO₃ - + H+ H₂CO₃
C. H₂CO₃ CO₂ + H₂O HCO₃- + H+
D. H₂CO₃ HCO₃- + H+
E. CO₂ + H₂O HCO₃ - + H+

Answer 1

The complete chemical reaction for the bicarbonate buffer system is represented by option B: CO₂ + H₂O → HCO₃⁻ + H⁺ → H₂CO₃.

Step-by-step explanation:

The complete chemical reaction for the bicarbonate buffer system is represented by option B: CO₂ + H₂O → HCO₃- + H+ → H₂CO₃.

This represents the reaction of bicarbonate as a base with water as an acid. In this reaction, carbon dioxide and water react to form carbonic acid, which can then dissociate to produce bicarbonate and hydrogen ions.

This reaction is an important part of maintaining the homeostasis of our blood by regulating its pH.