Name:_______________________Hour:__________
DIFFUSION/DIALYSIS/OSMOSIS LABClick on the link below to see information on diffusion: is diffusion? Does it only occur in laboratories? Explain. (This is a hint)In the very beginning, how does the concentration of the blue particles on side A compare to that of side B?What 3 things can molecules moving with kinetic energy do? a.b. diffusion moves down the concentration gradient from areas of_________concentration to areas of __________concentration.Eventually the two sides will come to equilibrium. What is equilibrium?What happens to the movement of molecules when their temperature is raised?What happens to the movement of molecules when their temperature is decreased?Watch the video: sites/0072495855/student_view0/chapter2/animation__how_diffusion_works.htmlOSMOSISClick on the link below to see information on osmosis: objects/index_tj.asp?objID=AP11003What is osmosis?What does the dashed line in the beaker separating the two sides represent?Why are they assuming the large molecules will stay on their own side of the membrane?Because molecules will move from one side to another to come to an equilibrium, or balance of concentration, themoves from side B to side A, so the water level on side A goes.In living things, cells must be in asolution where water leaves and enters the cell at.What happens to a cell in a concentrated, hypertonic environment? Click on the “View Movie” icon to find out.What happens to a cell in a concentrated, hypotonic environment? Click on the “View Movie” icon to find out.Watch the video: the video take the quiz that follows-The next link that was normally associated with this lab is no longer available, so instead, go to this video and watch it (7 minutes long). Answer the questions that follow. is the formula for glucose?What is the difference between a monosaccharide and a polysaccharide?IKI (Lugol’s solution) is an “indicator” for starch. What happens when IKI and starch come together?In the experiment, what is being used to test for the presence of glucose?What is dialysis tubing normally used for?At the start of the experiment, what is in the beaker? 4140200127000What is in the dialysis bag? Describe the appearance of the dialysisbag at the beginning of the experiment.Describe the appearance of the dialysis bag after 10 minutes.Rank these molecules by size from smallest to largest, then explain your logic based on the experiment. Glucose- Water- IKI- Starch ................
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