1. Chapter 7Membrane structure and function 2. overview 3. Fluid MosaicsConcept 7.1 4. Phospholipids are amphipathic:Two regions. 5. Fluid mosaic model: phospholipids + various…

Types of Transport Across Cell Membranes * Passive Transport Does not require energy Substances move from high to low Solutes move down the concentration gradient Examples:…

Cell Membrane Also known as the Plasma Membrane Surrounds the cell Semi-permeable Selectively permeable –”chooses” what enters and leaves MOST OF TIME BASED ON SIZE…

The Plasma Membrane and Homeostasis * Functions of Plasma Membrane Protective barrier Regulate transport in & out of cell (selectively permeable) Allow cell recognition…

Daily Warm up 9/17/10 What two things must happen for diffusion to occur? Define these three words: Isotonic solution, Hypotonic, Hypertonic. (where is there more water in…

Unit 3 - Cells Chapter 7 Cell Structure & Function Brief history Hooke (1660âs) Leeuwenhoek (1670âs) Schleiden & Schwann(1830âs) Virchow (1850âs) Cell Theory…

The Plasma Membrane and Homeostasis FLUID MOSAIC MODEL Homeostasis – Maintaining a Balance Cells must keep the proper concentration of nutrients and water and eliminate…

Cell Membrane Cell membrane A gateway and a barrier for the cell. Controls what enters & exits composed of phospholipids and proteins. Phospholipids Made up of a polar…

PowerPoint Presentation “Common sense is not so common.” ~ Voltaire Monday, September 30, 2013 S.C. Standards for Today: B-2: The student will demonstrate an understanding…

Figure 8.1 Artificial membranes (cross sections) Cell Transport: moving things in and out of the cell Material that surrounds all cells and certain organelles within the…