Question

can someone help me with these,can u please answer clearly and detailed,my professor is stingy; the experiment is

Diffusion, Osmosis, and the Permeability of Cell Membranes

Diffusion Part I
How will you demonstrate diffusion through a membrane?
Planning
1. What materials are you using?


2. How are you doing it?


3. Why are you doing it that way?


4. What are you measuring? How?


5. What do you expect to see? Why?



Summary of Your Results
6. What did you see? Did it match what you predicted?


7. What does it mean?


8. Why do you think this IS or is NOT a good demonstration of the process of diffusion?


9. How could you revise this demonstration of diffusion to make it better?


10. What are 1-2 questions about diffusion that your demonstration doesn’t answer?

Answer 1

Answers :)

1. We will use water, sugar, and paper towel as the membrane.
2. We will put a paper towel in a jar in such a manner that it will cover all surface of the jar by its sides. We need to stick the paper towels in the sides of jar. It will make a barrier in between two different solutions. Now, we will pour sugar added water in one part of the jar and only water in the second part but both are poured at same time.
3. It is an easier way to demonstrate the diffusion.
4. We are measuring the concentration of sugar in both solutions. We can measure it by using reagent strips of measuring sugar.
5. Initially we will see one solution will contain sugar and the other one will not. As the experiment is undergoing, the first solution will show lesser sugar content and the 2^nd one will show increasing content. At the last, both solutions will have equal concentration.
6. Yes, we observed the same as the above written content.
7. It means that in diffusion, solutes (sugar) move across the membrane while water level will remain same.
8. We ever thought that this is a good demonstration. It is because we are using one solute i.e. the sugar with the universal solvent i.e. the water.
9. We can use colors to show more observable demonstration.
10. Our method cannot show whether the movement of solutes is harmonious i.e at a constant rate or not.

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