type of Passive Transport #2 - OsmosisWater is SO important to cells, that the movement of water gets it's own name. Osmosis is the diffusionof water through a selectively permeable membrane from high concentration to low concentration. Justlike diffusion, it does not require energy (ATP) from the cell. Also like diffusion, when there is thesame concentration of water on both sides of a membrane, or there is the same concentration of water ina solution, the system has reached equilibrium. When water is in equilibrium, the water molecules stillmove, they just move at the same rate (speed).In the diagrams below, "W" represents a molecules of water and “S” represents a molecules of sugar. On eachdiagram below:1. Label each side of the rectangle HIGH for high WATER concentration and LOW forlow WATER concentration. If they are equal, write EQUAL.2. Draw an arrow to show which why the WATER molecules will move.Diagram ADiagram BDiagram CWS WS S SWSWWW WWSSS S WWW WWSSSSS SW WW WSWWWW SSS -WWWW WWWWWWWW W WWWWWWWSWSSW SWWWWWW WWWSSSSSSSS WWWWW3. Which diagram is in equilibrium for water?How did you know?4. The diagram below represents a laboratory setup used by a student during an investigation of diffusion.Distilled water is 100% water.Tube A-Glass tube-Tube BTubing10 mL ofdistilled water10 mL of watercontaining 5% starchDialysis membraneWhich statement best explains why the liquid in tube A will rise over a period of time?(1) The starch concentrations are equal on both sides of the membrane.(2) The water will pass from a region of lower starch concentration to one of higher starchconcentration.(3) Water and starch volumes are the same in both tubes A and B.(4) The fluids in both tubes A and B will change from a higher temperature to a lower temperature.In the diagram in #4, the starch will not move. Write a complete sentence explaining why.
