PPT-Osmosis & Cell Transport

Diffusion Movement of particles from HIGH to LOW concentration Caused by a concentration gradient difference in concentration Stops when it reaches dynamic equilibrium equal amounts everywhere . Name the organelle that performs each function:. Creates ATP from other compounds. Tags and packages other molecules. Conducts photosynthesis. Contains DNA and controls the cell. A cell is eukaryotic, and has a cell wall and chloroplasts. What kind of cell is it?. Thinking Log. 15. . The cell membrane only lets certain things in. This is called being ____________ _____________.. 16. . Does diffusion use energy?. Answers. Thinking Log. 15. . The cell membrane only lets certain things in. This is called being . Passive and Active Transport. Lesson Objectives . Understand how equilibrium is established as a result of diffusion.. Distinguish between diffusion and osmosis.. Cellular Membrane. Membrane: function is to control what enters and exits the cell. The Cell in its Environment. Ch 7, Section 2. L3 Biology. Molecules are always moving. Molecules move randomly and bump into each other and other barriers. Diffusion. Movement of molecules from an area of high concentration to an area of lower concentration . CHAPTER 2/ O’LEVEL BIOLOGY 5090 / GCE.. 2. Diffusion and osmosis. Content. 2.1 Diffusion. 2.2 Osmosis. 2.3 Active . transport. Learning outcomes. Candidates should be able to:. (a) define diffusion as the movement of molecules from a region of their higher concentration to a region of. 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. Chapter 3. Cell Membrane. Selectively permeable: allows . some. things to enter and leave. . Cell Membrane. Made of phospholipid bilayer. Cell Membrane. Made of a series of proteins.. https://www.youtube.com/watch?v=moPJkCbKjBs. th. . Miss Brawley. DO NOW. Why do we use cell transport?. What structure regulates what can enter/leave a cell?. What is the term used for that structure’s ability to be choosey?. True/False? Diffusion is the movement of particles from a low concentration to high concentration of particles.. 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. (Chapter . 3) . Objectives:. 1- Define a cell and distinguish between cytosol and cytoplasm. . 2- Explain the structure and molecular organization of the cell membrane and list factors determining its selective permeability. . Warm-Up. What do you know so far about the cell membrane?. What do you want to know about the cell membrane?. Cell Membrane Structure & Function. Phospholipid. Bi-layer . (hydrophilic heads, hydrophobic tails). Students will describe the structure and function of cells, tissues, organs, and organ systems.. . Explain that cells take in nutrients in order to grow and divide and to make needed materials.. Relate cell structures (cell membrane, nucleus, cytoplasm, chloroplasts, mitochondria) to basic cell functions. . 2. Diffusion and osmosis. Content. 2.1 Diffusion. 2.2 Osmosis. 2.3 Active . transport. Learning outcomes. Candidates should be able to:. (a) define diffusion as the movement of molecules from a region of their higher concentration to a region of.