The guide to Ex 1 and a Review Sheet is near the end of the Marieb lab manual (following the cat dissection exercises). See pages numbered PEx-n. The answer key to the PhysioEx Ex 1 review sheet is available on the shared directory (along with the answer key for Marieb Ex5 and the part of 37 for this week's lab). Osmosis (Colorado State) Add the following: Tube 1: add 5.0 ml of water and a few grains of bile salts Tube 2: add 5.0 ml of pancreatin solution Tube 3: add 5.0 ml of pancreatin solution AND a few grains of bile salts. 3. Check the pH of all tubes and record as ‘time 0’ by using wide-range pH paper first, then narrow-range pH paper.
color on the scale of pH values. Use the up and down arrows on the pH value counter to indicate the pH value of the solution. 3. Repeat step #2 for the remaining solutions. 4. When all the pH values are entered, click the check button to evaluate your answers. Wrong answers will be highlighted yellow. Test again until you get the correct answer.
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