E.Angiotensin II is a dipsogenic and a vasodilator 15.Renal Autoregulation a.This mechanism maintains renal perfusion pressure B.This mechanism requires renal sympathetic nerve activity C.This mechanism needs circulating angiotensin II. D.This mechanism controls both renal blood flow and glomerular filtration E.This mechanism increases the secretion of renin 16.Kidney Functions A.In kidney failure,the pH of blood will increase B.The kidneys secrete less erythropoietin during hypoxia. C.Osmoreceptors involved in water balance are found in the kidneys. D.Sodium sensors involved in sodium balance are only located in the kidneys. E.Both receptors for aldosterone and vasopressin are located at the collecting ducts 17.Colloid osmotic pressure refers to osmotic pressure exerted by A.Ions. B.Uncharged molecules C.Lipid soluble compounds. D.Proteins. E.All of the solutes in plasma,acting together. 18.Hexose is moving into a cell and no cellular energy is being directly or indirectly expended in the process.The hexose is entering by A.Diffusing directly through the lipid bilaver. B.Facilitated diffusion on a protein carrier molecule. C.A Na-hexose cotransporter. D A Na-he E.A Na-hexose ATPase 19.Oxygen molecules,moving by diffusion,will equilibrate most rapidly across which of the following structures? A.A capillary wall. B.a fenestrated capillary C A la of skin cells D.A ventricular wall. E.A lipid bilayer 20.Acell needs to have a Na-K ATPase pump because A.The pump creates the membrane potential. B The n ump is responsiblefor the production of action potentials C.Without a pump,ion fluxes through channels will accumulate and alter concentrations of ions. D.The pump moves water out of the cell,preventing cell death by osmosis.4 E. Angiotensin II is a dipsogenic and a vasodilator. 15. Renal Autoregulation A. This mechanism maintains renal perfusion pressure. B. This mechanism requires renal sympathetic nerve activity. C. This mechanism needs circulating angiotensin II. D. This mechanism controls both renal blood flow and glomerular filtration. E. This mechanism increases the secretion of renin. 16. Kidney Functions A. In kidney failure, the pH of blood will increase. B. The kidneys secrete less erythropoietin during hypoxia. C. Osmoreceptors involved in water balance are found in the kidneys. D. Sodium sensors involved in sodium balance are only located in the kidneys. E. Both receptors for aldosterone and vasopressin are located at the collecting ducts. 17. Colloid osmotic pressure refers to osmotic pressure exerted by A. Ions. B. Uncharged molecules. C. Lipid soluble compounds. D. Proteins. E. All of the solutes in plasma, acting together. 18. Hexose is moving into a cell and no cellular energy is being directly or indirectly expended in the process. The hexose is entering by A. Diffusing directly through the lipid bilayer. B. Facilitated diffusion on a protein carrier molecule. C. A Na-hexose cotransporter. D. A Na-hexose antiporter. E. A Na-hexose ATPase. 19. Oxygen molecules, moving by diffusion, will equilibrate most rapidly across which of the following structures? A. A capillary wall. B. A fenestrated capillary. C. A layer of skin cells. D. A ventricular wall. E. A lipid bilayer. 20. A cell needs to have a Na-K ATPase pump because A. The pump creates the membrane potential. B. The pump is responsible for the production of action potentials. C. Without a pump, ion fluxes through channels will accumulate and alter concentrations of ions. D. The pump moves water out of the cell, preventing cell death by osmosis