Links:
Use the links to the left to answer the following questions. You should read the questions before you begin so you know what information to pay special attention to. You will need to read information on the web pages. You can click on links within pages, such as the "membrane proteins" link in the first link on the left to help you. You should also click on videos within sites that help explain the text. Answer in complete sentences in your notebooks.
1A. What is the function of the cell membrane?
1B. Why is the membrane called "selectively permeable?
1C. How does the membrane being selectively permeable allow it to fulfill its function?
2. How many layers is the cell membrane made up of?
3. What are the structural components of the cell membrane?
4. Draw the structure a phospholipid. Label its parts. Also label the parts as "hydrophobic" or "hydrophilic."
5. Which part of the phoshoplipd will interact with water, the hydrophilic part or the hydrophobic part? Which part of the phospholipid will not interact with water, the hydrophilic part of the hydrophobic part?
6. Why is the model for the cell membrane called the "fluid mosiac?" What's the "fluid" part and what's the "mosaic" part?