B265 Test 2 Spring 2008

C movement of ca down and electrochemical gradient

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Unformatted text preview: Law the rate of diffusion of a gas a. is proportional to its molecular weight b. is inversely proportional to its molecular weight c. is proportional to the square root of its molecular weight d. is inversely proportional to the square root of its molecular weight - PR EME D41 38. In adults, hemoglobin is fully saturated when the partial pressure of oxygen a. is 70 mm Hg b. 18 mm Hg c. 10 mm Hg d. 30 mm Hg - PR EME D4 11. COM - PR EME D41 1.C OM 39.A factor that does not affect the rate of diffusion. a..Temperature b.Thickness of the membrane c.The concentration gradient d.Size and hydration of the diffusing particles e. All affect the rate of diffusion 11. COM - PR EME D4 11. COM 40.When ions are actively transported across a membrane the direction of the net flux is a.Down the electrochemical gradient b.Down the concentration gradient c.Up the electrochemical gradient d. Against the electrical driving force but with the concentration gradient COM - PR EM ED4 41. The surface tension on the wall of a small alve...
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This document was uploaded on 11/04/2011 for the course BIL 265 at University of Miami.

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