Question

question 33
which regulatory mechanism for hydrogen ion concentrations is the most potent but takes the most time to act?
chemical buffer systems
respiratory mechanisms
renal mechanisms
brainstem centers
bicarbonate buffer system

Explanation:

Chemical buffer systems act quickly but are less potent. Respiratory mechanisms can adjust hydrogen - ion concentrations relatively fast. Renal mechanisms are the most potent in regulating hydrogen - ion concentrations but take the most time to act as they involve complex processes in the kidneys. Brainstem centers are mainly involved in respiratory and cardiovascular control rather than direct hydrogen - ion regulation. The bicarbonate buffer system is part of the chemical buffer systems and acts rapidly but is not the most potent over the long - term compared to renal mechanisms.

Answer:

C. Renal mechanisms