When a person exercises, muscle contractions produce lactic acid. Moderate increases in lactic acid can be handled by the blood buffers without decreasing the pH of blood. However, excessive amounts of lactic acid can overload the blood buffer system, resulting in a lowering of the blood pH. A condition called acidosis is diagnosed if the blood pH falls to 7.35 or lower. Assume the primary blood buffer system is the carbonate buffer system described in Exercise 45. Calculate what happens to the [H2CO3]/[HCO3 2] ratio in blood when the pH decreases from 7.40 to 7.35.
When a person exercises, muscle contractions produce lactic acid. Moderate increases in lactic acid can be handled by the blood buffers without decreasing the pH of blood. However, excessive amounts of lactic acid can overload the blood buffer system, resulting in a lowering of the blood pH. A condition called acidosis is diagnosed if the blood pH falls to 7.35 or lower. Assume the primary blood buffer system is the carbonate buffer system described in Exercise 45. Calculate what happens to the [H2CO3]/[HCO3 2] ratio in blood when the pH decreases from 7.40 to 7.35.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter15: Additional Aqueous Equilibria
Section: Chapter Questions
Problem 102QRT
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Question
When a person exercises, muscle contractions produce lactic
acid. Moderate increases in lactic acid can be handled by the
blood buffers without decreasing the pH of blood. However,
excessive amounts of lactic acid can overload the blood buffer
system, resulting in a lowering of the blood pH. A condition
called acidosis is diagnosed if the blood pH falls to 7.35 or
lower. Assume the primary blood buffer system is the carbonate
buffer system described in Exercise 45. Calculate what
happens to the [H2CO3]/[HCO3
2] ratio in blood when the pH
decreases from 7.40 to 7.35.
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