Dialysis is a process similar to osmosis, involving the movement of molecules th

Question

Dialysis is a process similar to osmosis, involving the movement of molecules through a semipermeable membrane. In dialysis a special type of semipermeable membrane called a dialyzing membrane allows small solute particles as well as water molecules to pass through. However, larger colloidal particles cannot pass through the dialyzing membrane. The process of dialysis can be used to separate smaller molecules from larger colloidal particles.

1. Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found outside the bag?

Check all that apply.

2. Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found inside the bag?

Check all that apply.

3. Consider a mixture of NaCl, albumin solution, and starch solutions in a dialyzing bag. The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture?

Explanation / Answer

1. Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found outside the bag?

Check all that apply.

NaCl and glucose will be on the outside.

2. Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found inside the bag?

, albumin and starch will be in the inside of the bag

exaplanation

a. sodium and chloride ions will both pass through the membrane into the distilled water.

c. Sodium and chloride ions will both be present in the water surrounding the dialysis bag; the colloid starch will not.

3. Consider a mixture of NaCl, albumin solution, and starch solutions in a dialyzing bag. The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture?

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