Explain how the arterial PO2 and the oxygen content of whole blood are affected by (a)  hyperventilation, (b) breathing from a tank containing 100% oxygen, (c) anemia (low red  blood cell count and hemoglobin concentration), and (d) high altitude.

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Q: Describe the ways in which oxygen is transported in blood, including the reversible reaction for…

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Q: What are the Causes of a Decreased Arterial PO2 (Hypoxic Hypoxia) in Disease?

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Q: How much oxygen is present in systemic venous and systemicarterial blood?

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Q: describe how oxygen and carbon dioxide are transported in the blood.

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Q: Describe the partial pressures that are relevant to gas exchange.

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.