1. Using at least one physiological example, explain the concept of homeostasis. 2. Explain and provide examples of specificity, competition, and saturation in proteins. 3. Explain the concepts of specificity, competition, and saturation as they relate to enzymes. 4. Explain the fluid-mosaic model of the cell membrane. 5. Compare osmolarity and tonicity. 6. Compare simple diffusion, facilitated diffusion and active transport. 7. Explain why cells need both channel and carrier proteins. 8. Explain the concepts of specificity, competition, and saturation as they relate to carrier-mediated transport. 9. Briefly outline the major components of the core concept of flow-down gradients.10. Briefly outline the major components of the core concept of cell-to-cell chemical communication.-----------------------------------------------------------------------------------------------------------. *When answering short answer questions, look at the way the question is worded. * For core concept questions, make sure you begin your response with a paragraph summarizing your understanding of the general core concept. Then use that information to answer the specific question. *Compare means tell me how things are similar and how they are different. I am really asking you to “compare and contrast.” I think it is better to point out similarities, then systematically point out differences. * For describe, explain, and compare questions, *THINK about what you want to write, OUTLINE your answer, and then write your answer. * If a series of paragraphs are needed, the first paragraph should be an introduction to your answer.Each paragraph should begin with a topic sentence, several sentences which support or elaborate on the topic sentence, and a transition or concluding sentence. . This document has hints and comments for some of the Short Answer questions. I chose a core concept question, a couple "specificity, competition, and saturation" questions, an explain question, and a compare question. This should allow you to see the general types of things I am looking for. You can use this document to check your answers. If you are checking off the items in the question, you are off to a great start. Organize your answer, write well, and present it in such a way that your information is easy to find. Your answers also need to be precise and concise. Some students add so much information (some of it relevant and some of it not) that it looks like they are throwing everything against the wall and hoping something sticks. This tells me you haven't really thought about your response, and that is a no-no. Remember whenever you see "homeostasis," flow-down-gradients,” or “cell-to-cell signaling,” think about our core concept and the bulleted items. For the “competition, saturation, and specificity” questions, while it is not required, it would be a good idea to have a standard general paragraph or two explaining the concepts which you can use for all of them. You would just need to add information about the specifics (proteins in general for question 2, enzymes for question 3, and carrier-mediated transport for question 7) to have a wonderful answer to those four questions. Finally, remember this is physiology so think about the function or "how" something occurs.

Go to the EPA Ground Water and Drinking Water webpage. Under “Consumer Confidence Reports” click on the “Find your local CCR” link on the right. Click on the state in which you live. Type in the name of your water system or the City, Town or County in which you live. Once you have done this, click on the “Search” button on the right. Once your search information loads, scroll down to find the water system or district that serves your home (or the nearest system to you) by clicking on the blue link in the "CCR Website" column. Alternatively, you can do a google search for your city. For example, I would google “CCR Water Springfield Missouri”. If you cannot find the information online, you may be able to request it directly from your water provider. If you cannot find a water report, or you are on a private well, look for the nearest city of at least 10,000 people near you. If none of the above work, email me the name of the city and state in which you live and I will help you find an appropriate CCR. Once you have the report, review any information on the water quality or past violations for your system. Write a short essay of at least 1 page discussing issues related to groundwater in your state and the area of the state in which you live. In your paper, be sure and tell me the city and state in which you live. Submit your paper to the appropriate folder in the Dropbox area of the course.

SCIENCE.docxLESSON LINKS Viscosity Lab Video