Selectively Permeable Membrane to chooseto pass throughthin outer boundary Gate keeper for friendly folks but not enemies A ? B ?
Diffusion & Osmosis. THE CELL MEMBRANE AND THE FLUID MOSAIC THEORY - explain how food And gases enter and leave the cell Flip flop theory Explains how.
Movement of Materials The Cell Membrane Plasma Membrane (aka Cell Membrane) Phosopholipid Bilayer Called the Fluid Mosaic Model Selectively Permeable.
Experiment showing osmosis What is osmosis? What is water potential? Water potential of sucrose solution Water movement across a differentially permeable.
Eukaryotic Cell Structure Chapter 7.3. Cellular boundaries Plasma Membrane/Cell Membrane –Fxn-acts as a selectively permeable membrane.
The Human (Animal) Cell. Cell Membrane Responsible for controlling what substances go into and out of the cell Think of a screen door…
Biology Chapter 8 Cells and Their Environment. Sodium-Potassium Pump Carrier protein that uses ATP as it moves potassium ions and sodium ions across the.
1 5. Chemical basis of action potentials a. Sodium hypothesis: (Hodgkin and Katz, 1949) [Na + ] e reduction affects a.p., not E M Proposed Na + hypothesis:
The Origins of Life on Earth (or, a History of our planet in a week or less) Biology 2, College of the Atlantic Spring 2002.
The Plasma (Cell) Membrane The Fluid Mosaic Model.
EQ: What are the basic parts of cell membranes, and what is the job of each part? Can I diagram diffusion of oxygen, facilitated diffusion of glucose,
Unit 2 H=Chap. 4 In 1665, the English scientist ROBERT HOOKE, used a microscope to examine a thin slice of cork. He described it as consisting of.