nndow Questions for each of the following labs. Review for Lab 6 1. What is diff
ID: 229853 • Letter: N
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nndow Questions for each of the following labs. Review for Lab 6 1. What is diffusion? Why did the phenopthalein turn pink in the first experiment? 2. How does osmosis differ from diffusion and dialysis? 3. Be able to predict the direction of movement of water across a membrane in the following examples: Acell placed in a beaker of 10 % Saline. A carrot stick placed in 09% NaCl An IV bottle filled with 1 5% dextrose placed in a brachial vein. 3. If the middle "EGG" represents an egg in an isotonic solutions, what has happened to the EGGS" on either side? Be able to describe the nature of the solution and the "EGG. Use this information to describe the movement of water 4. What is the concentration of physiological saline? What concentrations of sugar may be used IV? 5. How does the artificial kidney work? 6. What happens to the specific gravity of urine when kidneys are unable to filter solutes?Explanation / Answer
Ans 1 :
Diffusion can be defined as the movement of particles from the high concentration gradient to a low concentration gradient.
The phenolphthalein is an acid base indicator that is basically colorless in the acidic medium but turns pink when the solution turns alkaline in nature.
Since the solution was acidic earlier , so the indicator was colorless , but when it becomes alkaline , the phenolphthalein turns pink.
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