Mitochondrial PO₂ is _____________ capillary PO₂. A) greater than B) less than C) equal to

Question

Quizplus · Accepted Answer

The mitochondrial PO₂, which refers to the potential difference across the inner mitochondrial membrane, is typically around 180-200 mV, while the capillary PO₂, which refers to the potential difference across the wall of a capillary, is typically around 20-30 mV. Therefore, the mitochondrial potential is greater than the capillary potential, making choice A incorrect. Since the capillary potential is much lower, it cannot be equal to the mitochondrial potential, making choice C incorrect. Therefore, the best choice is B - the mitochondrial PO₂ is less than the capillary PO₂.

Mitochondrial PO2 Is _____________ Capillary PO2

Mitochondrial PO₂ Is _____________ Capillary PO₂