For air breathers, the partial pressure gradient for O₂ _______ with increasing altitude, and the partial pressure gradient for CO₂ _______.

Question

Quizplus · Accepted Answer

The partial pressure of oxygen (O₂) decreases dramatically with increasing altitude due to lower atmospheric pressure. Carbon dioxide (CO₂), on the other hand, also decreases with increasing altitude but the decrease is not as dramatic as oxygen because it is not used by animals as heavily as oxygen. Therefore, the partial pressure gradient for oxygen decreases dramatically while the partial pressure gradient for carbon dioxide changes little.

For Air Breathers, the Partial Pressure Gradient for O2 _______

For Air Breathers, the Partial Pressure Gradient for O₂ _______