1.) To be able to see the fine structure of your alimentary canal. A barium enema is used to visualize the walls of the large intestine. Barium sulfate is mixed 80g of barium sulfate to 100 gram of water that produces a colloid, not a solution–the barium sulfate does not dissolve in water. On the otherhand. if 80 grams of sodium chloride were mixed with 100 grams of water, most the salt would go into solution. Your large instestine is water permeable, just like the membranes in the experiment–would water move in, not move, move out to the intestine when Barium sulfate is used and when sodium chloride is used.

2.) You have a membrane permeable to only water:

a) 60 % sugar solution in the beaker: 20 % sugar solution in the bag made with a semipermeable membrane; the solution in the bag is.____________________.

b) the water will move in/ out of the bag.

c) the water will stop moving when….

d) You now have a membrane that is permeable to both sugar and water. Using the same conditions as above, describe what will happen to the size of the bag, and the movement of water and sugar.

3.) Enzymes are an important catalyst for life.

Question 1: was is a catalyst.

Enzymes are used in many over the counter supplies.

Question 2: Where can you find enzymes being used in stuff you pruchase?

Enzymes can be responsible for spoilage, decomposition of human bodies, and a cause of disease.

Question: find an enzyme that is responsible for spoilage, decomposition or disease? Breifly tells us what it does?

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