Multiple choice

It is the principal buffer of __________.

Bicarbonate buffer is a critical buffer of our body

  1. extracellular fluid (ECF)

  2. intracellular fluid

  3. blood plasma

  4. the RBC

  5. tissue fluid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bicarbonate is the principal buffer of blood plasma. It consists of bicarbonate (HCO-3) and carbonic acid (H2CO3) as the base and acid members respectively. The bicarbonate buffer neutralizes stronger dietary and metabolic acids changing them to corresponding conjugate bases.

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