For each of the remaining problems in this section, assume that w mipermeable me

Question

For each of the remaining problems in this section, assume that w mipermeable membrane (SPM) between the two solutions but that starch and proteins CANNOT permeate the SPM. ater, small ions and glucose CAN permeate the n the diagram below, solutions C and D are separated by a SPM. A. In which direction, if any, does Ca" dialyze? B. In which, if any, direction does glucose dialyze? C. In which direction, if any, does starch dialyze? D. In which direction, if any, does Cl dialyze? E. In which direction, if any, does osmosis occur? Solution C 0.05 M starch 0.07 M glucose 0.1 M NaCl Solution D 0.05 M CaCl2 0.05 M glucose

Explanation / Answer

A. Ca2+ dialyze from solution D to solution C

Explanation: In solution D [Ca2+] = 0.05M and in solution C [Ca2+] = 0.0M, so it dialyze from Solution D to solution C. In dialysis solutes molecules move across a semipermeable membrane from an area of high concentration to an area of low concentration.

B. Glucose dialyze from solution C to solution D

Explanation: In solution C, concentration of glucose = 0.07M and in solution C, concentration of glucose = 0.05M, so it dialyze from solution C to solution D.

C. Starch does not dialyze. Starch cannot permeate the SPM.

D.

Cl– dialyze from solution C to solution D

Explanation: In solution C, concentration of Cl– = 0.1M and in solution C, concentration of Cl– = 0.05M, so it dialyze from solution C to solution D.

E. Osmosis occurs from solution D to solution C, the high solvent concentration to an area of low solvent concentration.

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