3. Hemoglobin can bind to Both oxygen gas and carbon dioxide gas Oxygen gas only Carbon dioxide gas only None of the choices are correct 4. What produces the force which drives quiet expiration? Elastic forces Gravity Diaphragm Intercostal muscles 5. Which equation is CORRECT regarding respiratory capacities and volumes? IC = TV + IRV + ERV + RV VC = TV + ERV %D TLC = TV + IRV + ERV IC = TV + IRV 6. If a person with asthma gets in a situation where their respiratory bronchioles become inflamed and narrowed, what aspect of respiration would be most mechanically impaired? Quiet inspiration Forced expiration Forced inspiration Quiet expiration

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