Bio 335 Exam 3 Study Guide Question with 100 % correct answers | Verified

According to the Haldane effect, ___. A) The unloading of oxygen at the tissues reduces to the loading of carbon dioxide B) The blood can become more acidic after oxygen unloading at the systemic tissue C) More carbon dioxide is eliminated at the lungs due to the loading of oxygen D) The partial pressure of oxygen increases in the venous return - Answer-C) more carbon dioxide is eliminated at the lungs due to the loading of oxygen Atrioventricular valves shut when ___. A) Pressure of the right atrium exceeds pressure right ventricle B) Pressure of the right ventricle exceeds pressure right atrium C) Pressure of the left atrium exceeds pressure left ventricle D) Pressure of the left ventricle exceeds pressure right atrium - Answer-B) Pressure of the right ventricle exceeds pressure right atrium Based on Henry's Law, which of the following liquids has the highest absorption coefficient? A) Water from the tap B) A warm cup of coffee C) A cup of water from hot springs D) A cup of water from the ocean - Answer-A) Water from the tap Blood flow through the liver is 750 mL/min, the arterial oxygen content is 0.25 mL O2/mL blood, and the venous oxygen content is 0.20 mL O2/mL blood, the rate of O2 consumption by the liver is ___ mL of oxygen per minute. A) 187.5B) 150 C) 15000 D) 37.5 - Answer-D) 37.5 Blood pressure is higher in ___ due to ___. A) legs, kinetic energy and vasoconstriction B) legs, the fluid column effects and gravity C) head, the fluid column effect and gravity D) head, the high energetic requirements of the brain - Answer-B) legs, the fluid column effects and gravity Changes in ___ are more likely to elicit ventilatory responses during exercise, whereas ___ is more likely to elicit responses at high elevations. A) PO2, PCO2 B) both PCO2 and PO2, only PO2 C) PO2, H+ D) PCO2, PO2 - Answer-D) PCO2, PO2 During isometric contraction of the heart, ___. A) the atrioventricular valve remains open B) the volume of the ventricle increases C) the pressure in the ventricle decreases D) aortic pressure is higher than ventricular - Answer-D) aortic pressure is higher than ventricular