Which statement best describes the relationship between pH and H^+? pH and H^+ a
ID: 528917 • Letter: W
Question
Which statement best describes the relationship between pH and H^+? pH and H^+ are directly proportional pH and H^+ are indirectly proportional Which pH values are typically considered to be fatal? less than 7.35 and more than 7.45 B. less than 7.25 and more than 7.55 less than 7.0 and more than 7.8 less than 6.8 and more than 8.0 7. Which compensatory mechanism has the most rapid response to acid-base disturbances? Bicarbonate buffer system Respiratory system Renal system Gastrointestinal system Which compensatory mechanism has the best ability to correct for large acid-base disturbances? Bicarbonate buffer system Respiratory system Renal system Gastrointestinal system which compensatory mechanism has its effect on acid-base disturbances by affecting CO_2 levels? Bicarbonate buffer system Respiratory system Renal system. Gastrointestinal systemExplanation / Answer
4)
B.As pH rises, blood becomes more alkalotic.
Explanation-
PH = -log [H+]
If pH rises, then log [H+] must decrease, and for log [H+]to decrease, [H+] must decrease, so it's more basic.
5)
B. PH and H+ are indirectly proportional.
Explanation-
PH = -log [H+]
If pH rises, then log [H+] must decrease and if pH falls, then log [H+] must increase.
6)
D. Less than 6.8 and more than 8
Explanation- The body's fluids are normally alkaline. The pH being between 7.35 and 7.45 is suitable for all biochemical activity. A pH above 8 or below 6.8 is generally fatal. Low PH causes acidosis and high PH causes alkalosis.
7)
B. Respiratory system
Explanation- An acid base disturbance characterized by an elevation in the partial pressure of dissolved CO2 leading to an elevation in the PCO2/[HCO3-] ratio which subsequently increases the hydrogen ion concentration according to the following equation:
[H+] = 24 × PCO2 / [HCO3-]
8)
A. Bicarbonate Buffer System
The buffer system is the body’s first line of defense against acid-base imbalances. It acts almost instantaneously to correct large variations in H+ levels.
9)
B. Respiratory system
Explanation- An acid base disturbance characterized by an elevation in the partial pressure of dissolved CO2 leading to an elevation in the PCO2/[HCO3-] ratio which subsequently increases the hydrogen ion concentration according to the following equation:
[H+] = 24 × PCO2 / [HCO3- ]
.
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