1. BIOLOGY Ms. deVesty

2. RULES AND POLICIES: Be kind and respectful to all! Participate and ask questions!

3. This week’s Calendar: Date10/13/1410/14/1410/15/1410/16/1410/17/14 Unit Name Unit 3: Cell Biology Lesson 8: Passive Transport Unit 3: Cell Biology Lesson 9: Active Transport Unit 3: Cell Biology Lesson 10: Laboratory: Determining the Rate of Diffusion 1 Unit 3: Cell Biology Lesson 11: Laboratory: Determining the Rate of Diffusion 2 Unit 3: Cell Biology Lesson 12: Your Choice Work to Complete 3.08 Passive Transport 3.09 Active Transport 3.10 Lab: Diffusion Rate 1 3.11 Lab: Diffusion Rate 2 3.12 Your Choice Assignment Due Date 10/13/201410/14/201410/15/201410/16/201410/17/2014 Graded Activities Due This Day 3.08 Quiz 3.08 Quiz 3.10 Assignment

4. LESSON OBJECTIVES Understand how the process of diffusion occurs in cells. Understand how the process of diffusion occurs in cells. Apply the concept of homeostasis to the process of diffusion. Apply the concept of homeostasis to the process of diffusion. Understand how the surface area-to-volume ratio of a cell affects diffusion of materials into that cell. Understand how the surface area-to-volume ratio of a cell affects diffusion of materials into that cell. Conduct an experiment, and gather and analyze data. Conduct an experiment, and gather and analyze data.

5. NEW VOCAB: Diffusion : Diffusion : Process in which atoms and molecules move from an area where they are more concentrated to an area where they are less concentrated

6. Big Idea for This Lesson Various transport mechanisms—diffusion, osmosis, and facilitated diffusion (passive transport) and exocytosis and endocytosis (active transport)—move substances across membranes. Misconceptions The rate of diffusion is faster in small cells compared to large cells. [The rate is constant; materials have to cover less distance in a small cell than a large cell.]

10. STOP: Check for understanding

11. LET’S WORK ON THE LAB NOW!

12. QUESTIONS??? Kmail me any time! Have a wonderful week!