BIO 131 ANATOMY AND PHYSIOLOGY FINAL EXAM STUDY GUIDE WITH CORRECT SOLUTIONS.

BIO 131 ANATO MY AND PHYSIOLOGY FINAL EXAM ST UDY GUIDE WITH CORRECT SOLUTIONS. 1. The main site of gas exchange is the A) Alveolar sacs B) alveoli C) alveolar duct D) respiratory bronchiole B 2. The walls of the alveoli are composed of two types of cells, type I and type II. The function of type II is to A) secrete surfactant B) trap dust and other debris C) replace mucus in the alveoli D) protect the lungs from bacterial invasion A 3. Complete the following statement using the choices below. Air moves out of the lungs when the pressure inside the lungs is A) less than the pressure in the atmosphere B) greater than the pressure in the atmosphere C) equal to the pressure in the atmosphere D) greater than the intra -alveolar pressure B 4. The relationship between gas pressure and gas volume is described by A) Boyle's law B) Henry's law C) Charles' law D) Dalton's law A 5. The statement " in a mixture of gases, the total pressure is the sum of the individual partial pressures of gases in the mixture" paraphrase’s A) Henry's law B) Boyle's law C) Dalton's law D) Charles' law C 6. Surfactant helps to prevent the alveoli from collapsing by A) humidifying the air before it enters B) warming the air before it enters C) interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid D) protecting the surface of alveoli from dehydration and other environmental variation C 7 With the Bohr effect, more oxygen is released because a(n) A) decrease in pH (acidosis) strengthens the hemoglobin -oxygen bond B) decrease in pH (acidosis) weakens the hemoglobin -oxygen bond C) increase in pH (alkalosis) strengthens the hemoglobin -oxygen bond D) increase in pH (alkalosis) weakens the hemoglobin -oxygen bond B 8 The most powerful respiratory stimulus for breathing in a healthy person is A) loss of oxygen in tissues B) increase of carbon dioxide C) acidosis D) alkalosis B 9 The local matching of blood flow with ventilation is A) the Bohr effect B) the Haldane effect C) chloride shifting D) ventilation -perfusion coupling D 10 which of the following is not an event necessary to supply the body with O2 and dispose of CO2?