Diffusion And Osmosis Experiment
Diffusion And Osmosis Experiment
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Diffusion and Osmosis Experiment
Data Tables and Post-Lab Questions
Table 7: Water Displacement per Potato Sample
1. How did the physical characteristics of the potato vary before and after the experiment? Did it vary by potato type?
2. What does the net change in the potato sample indicate?
3. Different types of potatoes have varying natural sugar concentrations. Explain how this may influence the water potential of each type of potato.
4. Based on the data from this experiment, hypothesize which potato has the highest natural sugar concentration. Explain your reasoning.
5. Did water flow in or out of the plant cells (potato cells) in each of the samples examined? How do you know this?
6. Would this experiment work with other plant cells? What about with animal cells? Why or why not?
7. From what you know of tonicity, what can you say about the plant cells and the solutions in the test tubes?
8. What do your results show about the concentration of the cytoplasm in the potato cells at the start of the experiment?
9. If the potato is allowed to dehydrate by sitting in open air, would the potato cells be more likely to absorb more or less water? Explain.
ESSAY GUIDELINES -:
Write a 1000-1500-word essay addressing each of the following points. Be sure to completely answer all the questions for each bullet point. There should be two main sections, one for each bullet below. Separate each section in your paper with a clear heading that allows your professor to know which bullet you are addressing in that section of your paper.
Support your ideas with at least three (3) sources using citations in your essay. Make sure to cite using the APA writing style for the essay. The cover page and reference page in correct APA do not count towards the minimum word amount. Review the rubric criteria for this assignment.
Length: 1000-1500 words; answers must thoroughly address the prompts in a clear, concise manner.
Evaluation Criteria for Paper
(10%) Resources used as rationale for approaches and as sources of content
_____ 5. (20%) write paper in a scholarly manner
(4%) Format includes title page, body of paper, & reference page, with pages numbered
_____ 5. (20%) Write the Paper in a scholarly manner
(4%) Format includes title page, body of paper, & reference page, with pages numbered
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