The lungs act as an acid-base buffer by a. increasing respiratory rate and depth when CO2 levels in the blood are high, reducing acid load. b. increasing respiratory rate and depth when CO2 levels in...

The lungs act as an acid-base buffer by

a. increasing respiratory rate and depth when CO2 levels in the blood are high, reducing acid load.

b. increasing respiratory rate and depth when CO2 levels in the blood are low, reducing base load.

c. decreasing respiratory rate and depth when CO2 levels in the blood are high, reducing acid load.

d. decreasing respiratory rate and depth when CO2 levels in the blood are low, increasing acid load.