Chapter 5 Questions & AP Lab #1 Outline

Chapter 5 Reading Questions

1. What is the structure of the plasma membrane? Draw and label in detail. What is the function of the plasma membrane?

2. Describe the main membrane proteins (Figure 5.6) and describe their functions.

3. What are the forces that cause water and solutes to move across membranes passively?

4. Describe the difference between simple diffusion and facilitated diffusion. What kind of substances travel in each of these ways?

5. Describe the mechanisms by which substances move across the membrane against a concentration gradient (active transport).

6. Why is osmosis so important to cells? Describe an isotonic, hypertonic, and hypotonic solution.

7. Make a concept map using the following terms:

cell membrane phospholipid diffusion passive transport
active transport osmosis Ca+ pump Na/K+ pump
bulk flow endocytosis exocytosis phosopholipids
receptor mediated endocytosis

Osmosis Lab Write Up Outline

Title: Original and Descriptive of the lab
Purpose:
1st paragraph: Include background information.
2nd paragraph: Discuss purpose of the lab and state your hypothesis.
3rd paragraph: Relate this lab to one or more of the major themes in Ap Biology.
There are 8 major themes in this course:
1. Science as A Process
2. Evolution
3. Energy Transfer
4. Continuity and Change
5. Relationship of Structure to Function
6. Regulation
7. Interdependence in Nature
8. Science, Technology, & Society

Procedure:
In paragraph form in detail describe the steps you took to design, construct, and analyze your data. Be specific and use units when appropriate and be sure to include how many trails were done and the amount of time it took to conduct the experiment. Include any drawings or diagrams of your set- up that may help the reader understand your design.

Analysis

Include at the beginning of this section a one to two sentence summary of your results.
In this section include tables, qualitative data in paragraph form, in a table, or with pictures and graphs.

For each table be sure to:
Include a specific title, include units - if appropriate.
For each graph be sure to:
Include a specific title, x axis, y axis - include a key.

Conclusion:

1st paragraph: Briefly discuss purpose of lab, procedure of lab - very briefly, and restate your hypothesis. Finally discuss briefly if your hypothesis was correct, incorrect, or inconclusive.
2nd paragraph: Use specific examples from your data tables to support your conclusion. The more examples you have the better.
3rd paragraph: Discuss experimental flaws or errors that may have occurred in the lab.
4th paragraph: Discuss how this experiment could be improved and what steps you could take to expand this research if you had more time or more resources available to you.
5th paragraph: Discuss the significance of this lab with regard to themes we have in AP Biology this year, with regard to the society we live in - why is this lab important? Does it have any implications for our lives? Why should this type of research be supported?