BIO 131 GCCCD Diffusion and Osmosis Questions

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BIO 131 GCCCD Diffusion and Osmosis Questions

Nursing homework help

Exercise 8: The Plasma Membrane Skill Check Worksheet NAME:______________________ LAB SECTION_________________ Activity 1: Diffusion of Molecules through Selectively Permeable membranes. Color of glucose/starch solution in dialysis bag at start of experiment Color of solution in beaker at start of experiment golden no color-clear yellow Part A: Pre-Experiment Questions 1. Which molecules do you think will move through the dialysis bag? Why? 2. Which molecules are least likely to move through the dialysis bag? Why? Solution Original Contents Original Color Final Color Glucose Present? (dipstick results) Bag Glucose and starch clear Positive Dark for Brown/black glucose Beaker I2KI and water Golden yellow Golden yellow positive for glucose 1. Describe the results of your tests with reference to the colors of the final solutions. 2. Explain what these results mean in terms of the movement of the various molecules (starch, glucose and I2KI) 3. From your results, predict the size of I2KI molecules relative to the starch and glucose molecules. 4. What results would you have expected if the experiment had started with glucose and I 2KI inside the bag and starch in the beaker? Explain why. Activity 2: The Plasma Membrane of Red Blood Cells DI 0.45 0.90 1.50 2.00 Undiluted clear Slight ly cloudy Slight ly cloudy Slight ly cloudy opaque Descripti on of Cells No No cells cells visibl visibl e e Swolle n Balloo n shaped cells Starshaped cells Starshaped cells Biconca ve cells Drawing of Cell shape No No cells cells visibl visibl e e Opacity Reading clear Were there any differences between the opacity of the undiluted tube when compared with any of the other sample tubes? If there were differences, why were they different? Describe any differences in the microscopic shapes of the cells in each of the tubes compared to the undiluted control. If there were differences, why were there differences? How do the looks of the cells relate to the conditions in the tubes? Were you able to find cells in all of the samples? What is the relationship between the opacity data and the microscopic characteristics of the cells? What does this tell you about what occurred with the cells in the tubes?

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Main Posting 45 (45%) – 50 (50%)

Answers all parts of the discussion question(s) expectations with reflective critical analysis and synthesis of knowledge gained from the course readings for the module and current credible sources.

 

Supported by at least three current, credible sources.

 

Written clearly and concisely with no grammatical or spelling errors and fully adheres to current APA manual writing rules and style.

40 (40%) – 44 (44%)

Responds to the discussion question(s) and is reflective with critical analysis and synthesis of knowledge gained from the course readings for the module.

 

At least 75% of post has exceptional depth and breadth.

 

Supported by at least three credible sources.

 

Written clearly and concisely with one or no grammatical or spelling errors and fully adheres to current APA manual writing rules and style.

35 (35%) – 39 (39%)

Responds to some of the discussion question(s).

 

One or two criteria are not addressed or are superficially addressed.

 

Is somewhat lacking reflection and critical analysis and synthesis.

 

Somewhat represents knowledge gained from the course readings for the module.

 

Post is cited with two credible sources.

 

Written somewhat concisely; may contain more than two spelling or grammatical errors.

 

Contains some APA formatting errors.

0 (0%) – 34 (34%)

Does not respond to the discussion question(s) adequately.

 

Lacks depth or superficially addresses criteria.

 

Lacks reflection and critical analysis and synthesis.

 

Does not represent knowledge gained from the course readings for the module.

 

Contains only one or no credible sources.

 

Not written clearly or concisely.

 

Contains more than two spelling or grammatical errors.

 

Does not adhere to current APA manual writing rules and style.

Main Post: Timeliness 10 (10%) – 10 (10%)

Posts main post by day 3.

0 (0%) – 0 (0%) 0 (0%) – 0 (0%) 0 (0%) – 0 (0%)

Does not post by day 3.

First Response 17 (17%) – 18 (18%)

Response exhibits synthesis, critical thinking, and application to practice settings.

 

Responds fully to questions posed by faculty.

 

Provides clear, concise opinions and ideas that are supported by at least two scholarly sources.

 

Demonstrates synthesis and understanding of learning objectives.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are fully answered, if posed.

 

Response is effectively written in standard, edited English.

15 (15%) – 16 (16%)

Response exhibits critical thinking and application to practice settings.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are answered, if posed.

 

Provides clear, concise opinions and ideas that are supported by two or more credible sources.

 

Response is effectively written in standard, edited English.

13 (13%) – 14 (14%)

Response is on topic and may have some depth.

 

Responses posted in the discussion may lack effective professional communication.

 

Responses to faculty questions are somewhat answered, if posed.

 

Response may lack clear, concise opinions and ideas, and a few or no credible sources are cited.

0 (0%) – 12 (12%)

Response may not be on topic and lacks depth.

 

Responses posted in the discussion lack effective professional communication.

 

Responses to faculty questions are missing.

 

No credible sources are cited.

Second Response 16 (16%) – 17 (17%)

Response exhibits synthesis, critical thinking, and application to practice settings.

 

Responds fully to questions posed by faculty.

 

Provides clear, concise opinions and ideas that are supported by at least two scholarly sources.

 

Demonstrates synthesis and understanding of learning objectives.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are fully answered, if posed.

 

Response is effectively written in standard, edited English.

14 (14%) – 15 (15%)

Response exhibits critical thinking and application to practice settings.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are answered, if posed.

 

Provides clear, concise opinions and ideas that are supported by two or more credible sources.

 

Response is effectively written in standard, edited English.

12 (12%) – 13 (13%)

Response is on topic and may have some depth.

 

Responses posted in the discussion may lack effective professional communication.

 

Responses to faculty questions are somewhat answered, if posed.

 

Response may lack clear, concise opinions and ideas, and a few or no credible sources are cited.

0 (0%) – 11 (11%)

Response may not be on topic and lacks depth.

 

Responses posted in the discussion lack effective professional communication.

 

Responses to faculty questions are missing.

 

No credible sources are cited.

Participation 5 (5%) – 5 (5%)

Meets requirements for participation by posting on three different days.

0 (0%) – 0 (0%) 0 (0%) – 0 (0%) 0 (0%) – 0 (0%)

Does not meet requirements for participation by posting on 3 different days.

Total Points: 100