PPT-OSMOSIS and DIFFUSION

Molecules are always moving Molecules move randomly and bump into each other and other barriers Concentration gradient Concentration Gradient change in the concentration of a substance from one area to another. Learning Outcomes. explain what is meant by . passive transport . (diffusion and facilitated diffusion including the role of membrane proteins), . active transport. , . endocytosis . and . exocytosis;. Cell membrane compared to a sieve/colander.. When would you use a colander?. What does a cell membrane and a colander have in common?. All cells are surrounded by a cell membrane. Cell membranes . keep things out and keep things in.. Essential idea: Membranes control the composition of cells by active and passive transport.. The . background image is . a piece of artwork inspired by the complexity of an . E. Coli. . Complexity in cell structure is much . Prefixes, Suffixes, and Vocabulary. Diffusion . = the movement of particles from a high concentration to a low concentration. . Osmosis . = The diffusion of water. . . Hyper . = high, over. . . Hypo. Intermediate 2 Biology. Unit 1: Living Cells. Diffusion. Learning Objectives. Name the method by which substances move in and out of cells.. Define the term . ‘. diffusion. ’. State when diffusion will stop.. Parkland 2012-2013. Unicellular VS Multi-cellular . Multi-cellular organisms can: . live . in a wide variety of . environments. grow . very . large . . obtain their energy from a wide variety of foods . Osmosis vs. . Endocytosis . and . Exocytosis. . Doctor Osmosis: Controller of all of the transporter proteins. Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of greater concentration of water to an area of lesser concentration of water. . . Really smelly demonstration…... Put a few drops of vanilla in a balloon. Shake the balloon, then wait about 30 seconds. Smell the outside of the balloon. What’s going on?. EVIDENCE. INFERENCE. Mr. Black . Warm Up February 10, 2016. What is an organelle?. During a chemical reaction….. Reactants increase while the products decrease. . Reactants decrease while the products increase. . Products always equal the reactants . and Osmosis. Diffusion . is the movement of particles from an area of high concentration to an area of low concentration. When a particle moves from an area of high concentration to an area of low concentration, it is said that it is moving down its . Chapter 7. 7.1 Cell discovery and theory. The invention of the microscope led to the discovery of cells. .. microscope . Compound Light Microscope. Series of glass lenses. Uses visible light to produce a magnified image. Essential idea: Membranes control the composition of cells by active and passive transport.. The . background image is . a piece of artwork inspired by the complexity of an . E. Coli. . Complexity in cell structure is much . http://www2.nursingspectrum.com/articles/article.cfm?aid=11971. http://ailil.deviantart.com/art/Osmosis-Jones-Strikes-Back-3678440. Section 1 Vocabulary Pretest. Passive Transport. Diffusion. Concentration gradient. …happens across a semi-permeable membrane. . ONLY WATER. Water is a small but extremely important molecule that makes up most of the liquid part of the cytoplasm in living things. . . Deals . ONLY.