When an air-breathing animal experiences high-altitude hypoxia,restoring blood Pᴼ².through increased ventilation leads to all of the following EXCEPT
A)hypocapnia.
B)respiratory acidosis.
C)loss of drive to breathe.
D)low [H⁺].

Question

Quizplus · Accepted Answer

At high altitudes, the body responds to low oxygen levels (hypoxia) by increasing ventilation to raise blood oxygen levels. This leads to hypocapnia (reduced CO₂ levels in the blood), not respiratory acidosis. Respiratory acidosis is characterized by increased CO₂ levels and decreased pH, opposite of what occurs with increased ventilation in response to hypoxia. Increased ventilation also leads to a decrease in [H⁺] (lower hydrogen ion concentration), contributing to respiratory alkalosis, not acidosis. Additionally, the loss of drive to breathe can occur due to the reduced CO₂ levels, as CO₂ levels are a primary driver for the urge to breathe.

When an Air-Breathing Animal Experiences High-Altitude Hypoxia,restoring Blood Pᴼ²