2 acetyl CoA, 1 FADH2 & 2 NADH

1 acetyl CoA, 3 FADH2 & 1 NADH

3 acetyl CoA, 3 FADH2 & 2 NADH

1 acetyl CoA, 1 FADH2 & 1 NADH

Increased reabsorption

No change

Increased excretion

Decreased reabsorption

Reduced alveolar ventilation

Decreased alveolar size

Reduced diffusion surface area and alveolar number

Increased hemoglobin concentration

Because cardiac output is the only limiting factor

Because breathing frequency always exceeds VO₂

Because oxygen extraction is maximal

Because ventilation never reaches maximal voluntary ventilation

Both equally

Efferent arteriole

Neither

Afferent arteriole

70%

80%

90%

60%

They have lower plasma volume

They have higher baseline GFR

They excrete less lactate

They experience greater glomerular shear stress

Increased stroke volume

Decreased plasma volume and venous return

Decreased heart rate

Increased central blood volume

Decreased CO₂

Increased 2,3-DPG

Increased pH

Decreased temperature

Reduced alveolar ventilation

Increased RBC transit time

Decreased hemoglobin concentration

Inability of pulmonary capillaries to accommodate increased blood flow