edapt 7 questions With Actual Correct Answers Well Defined |Graded A+.

in a closed system, the relationship between pressure and volume is best described by _____ - correct answer - boyle's law what is the transport mechanism by which gases such as oxygen and carbon dioxide move across cell membranes - correct answer - simple diffusion in a mixture of gases, each gas will exert its own partial pressure, regardless of the partial pressures of other gases in the mixture - correct answer - dalton's law in a closed system, pressure and volume have an inverse relationship - correct answer - boyle's law the amount of gas that will dissolve in a fluid is determined by the solubility of the gas in the given fluid - correct answer - henry's law at the arterial end of a systemic capillary, rank the following structures from highest to lowest partial pressure of oxygen - correct answer - capillaries > interstitial fluid > cells respiratory gases cross the alveolar epithelium via ___ - correct answer - simple diffusion rank the following of gases in the order of their solubilities in blood, from the least soluble to the most soluble - carbon dioxide - nitrogen - oxygen - correct answer - nitrogen > oxygen > carbon dioxide which of the following is true at the arterial end of the pulmonary capillaries - correct answer - the partial pressure of oxygen is lower in the capillaries than in the alveoli despite a small partial pressure gradient from the gas of alveoli to the blood, we know that carbon dioxide is capable of rapid diffusion due to its high solubility - correct answer - henry's law knowing that the total pressure of three gases (A,B, and C) is equal to 10 mmHg, we can calculate the partial pressure of C provided we know that PA = 6 mmg and PB= 1 mmHg - correct answer dalton's law we know that the volume of intrapulmonary gas is lower following expiration due to the increased pressure of the thoracic cavity - correct answer boyle's law oxygen unloading occurs at the ____. this process will ultimately _____ the oxygen partial pressure of the blood leaving this region - correct answer - tissues; decrease which epithelium is found in the alveolar walls - correct answer - simple squamous epithelium hemoglobin can bind up to ___ molecules of oxygen - correct answer - 4 which of the following is the primary mechanism for transporting oxygen throughout the blood - correct answer - bound to hemoglobin which of the following is the primary mechanism for transporting carbon dioxide throughout the blood - correct answer - in the form of bicarbonate ions which of the following will leave rbcs when bicarbonate ions diffuse into the cells - correct answer - chloride ions which of the following explains why the oxyhemoglobin dissociation curve is non-linear - correct answer - binding of the first oxygen molecule to hemoglobin facilitates the binding of additional oxygen, so the mid portion of the curve becomes steeper the addition of carbon dioxide to the blood will generate _____ ions in the rbcs, which in turn stimulates rbcs to unload more oxygen at the tissues - correct answer - hydrogen order the following reactants/products from first to last as they occur inside a red blood cell in an alveolar capillary - correct answer - HCO3- + H+ <----> H2CO3 <---> CO2 + H2O alveolar capillaries - correct answer - oxygen is diffusing into the blood - carbon dioxide diffuses from the blood systemic capillaries - correct answer - chloride ions shifts into the rbc - carbon dioxide is diffusing into the blood - carbon dioxide binds to plasma proteins which of the following is a form in which carbon dioxide can be transported in the blood - correct answer - in plasma in the form of bicarbonate ions - dissolved in plasma - bound to hemoglobin (carbaminohemoglobin) a rapid respiratory rate (above normal) is clinically known as ___- - correct answer - tachypnea