Why does carbonated water have a taste?
Chemistry For Your Life
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The Evolution of CO2 Sensing in Mammals
In 2009, a scientist speculates on why mammals have CO2 sensing. The enzyme is there basically to produce the acid to keep the pH balanced right around the taste buds. And we just detect CO2 almost as a byproduct that doesn't matter. It's about trying to fulfill another very important function of our bodies.
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