Control of Blood pH by respiratory rate.
a) The partial pressure of CO2 in the lungs can be varied rapidly by the rate and depth of breathing. For example, a common remedy to alleviate hiccups is to increase the concentration of CO2 in the lungs. This can be achieved by holding one's breath, by very slow and shallow breathing ( hypoventilation), or by breathing in and out of a paper bag. Umder such conditions, pCO2 in the air space of the lungs rise above normal. Qualitatively explain the effect of these procedures on the blood pH.
b) A common practice of competitive short-distance runners is to breathe rapidly and deeply (hyperventilate) for about half a minute to remove CO2 from their lungs just before the race begins. Blood pH may rise to 7.60. explain why the blood pH increases.
c) During a short-distance run, the muscles produce a large amount of lactic acid (CH3CH(OH)COOH; Ka= 1.38 x 10^-4 M) from their glusoce storess. In view of this fact, why might hyperventilation before a das be useful?
Control of Blood pH by respiratory rate.
a) The partial pressure of CO2 in the lungs can be varied rapidly by the rate and depth of breathing. For example, a common remedy to alleviate hiccups is to increase the concentration of CO2 in the lungs. This can be achieved by holding one's breath, by very slow and shallow breathing ( hypoventilation), or by breathing in and out of a paper bag. Umder such conditions, pCO2 in the air space of the lungs rise above normal. Qualitatively explain the effect of these procedures on the blood pH.
b) A common practice of competitive short-distance runners is to breathe rapidly and deeply (hyperventilate) for about half a minute to remove CO2 from their lungs just before the race begins. Blood pH may rise to 7.60. explain why the blood pH increases.
c) During a short-distance run, the muscles produce a large amount of lactic acid (CH3CH(OH)COOH; Ka= 1.38 x 10^-4 M) from their glusoce storess. In view of this fact, why might hyperventilation before a das be useful?
Related textbook solutions
Basic Chemistry
Principles of Chemistry Molecular Approach
Principles of Chemistry Molecular Approach
Chemistry: Structure and Properties
Chemistry: A Molecular Approach
Chemistry: A Molecular Approach
Principles of Chemistry: A Molecular Approach
