exercise_resp_topic_4 - The Respiratory System: Gas...

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The Respiratory System: Gas Transport 1. Oxygen transport in the blood: _____% is bound to hemoglobin _____% dissolves in plasma 2. The hemoglobin molecule is composed of ___ polypeptide chains and ___ heme groups containing iron. What does oxygen bind to? _________ 3. After one oxygen molecule (O 2 ) binds to hemoglobin, it is easier for the other molecules to bind to the hemoglobin. This is known as ___________________. 4. When oxygen is loaded onto hemoglobin in the lungs, hemoglobin is called _________________, and when oxygen is unloaded from the hemoglobin at the tissues it is called ____________________. 5. From the oxygen-hemoglobin dissociation curve, we see the following: Lungs: Partial pressure of oxygen is ____ mmHg Hemoglobin is ____% saturated Tissues: Partial pressure of oxygen is ___ mmHg Hemoglobin is ____% saturated 6. Effect of high altitude on lung PO 2 : With a decrease of 20 mmHg in the lungs, will the saturation of hemoglobin decrease significantly?
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exercise_resp_topic_4 - The Respiratory System: Gas...

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