Allied Health A&P Ch. 22
False
The physiological pH control mechanisms react more quickly to stabilize pH than do the chemical pH control mechanisms.
False
A person can develop acidosis of the blood even if the pH is above 7.
is an acid solution
A solution with a pH of 3
has 100 times more H+ ions than a solution with a pH of 2
A solution with a pH of 4
False
A solution with a pH of 5 has 100 times more hydrogen ions than a solution with a pH of 3.
True
A solution with a pH of 5 is considered an acid.
Both B and C
A solution with a pH of 9
is caused by an increase in base or a loss of acid
Blood alkalosis
lower concentration of carbon dioxide
Blood leaving the lungs has a ________ than blood entering the lungs.
False
Hyperventilation syndrome can cause metabolic alkalosis.
False
If a base were added to the buffer pair H2CO-NaHCO3, the concentraion of NaHCO3 would drop.
True
Maintaining acid base balance means keeping the concentration of hydrogen ions in body fluids relatively constant.
True
Stomach acid is the body fluid with the lowest pH.
True
The NaHCO3 buffer system buffers lactic acid.
Function of cellular enzymes
The function of H+ ions in the body is
True
The function of carbonic anhydrase is to convert carbon dioxide and water to carbonic acid.
the higher concentration of carbonic acid from cell metabolism
The slightly lower pH of venous blood compared with arterial blood comes primarily from
respiratory alkalosis
Which of the following is caused by H2CO3 deficit?
the buffers in the blood
Which of the following is considered a chemical pH control mechanism?
Both B and C above
Which of the following is considered a physiological pH control mechanism?
