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  • What is the ratio of carbonic acid to bicarbonate in the ...
Multiple choice

What is the ratio of carbonic acid to bicarbonate in the extracellular fluid?

  1. The same as that of the propeller

  2. 1:15

  3. 1:10

  4. 1:20

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The bicarbonate buffer system maintains a normal arterial blood pH of 7.4 by keeping a ratio of 20 parts bicarbonate to 1 part carbonic acid.

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