Biology Post Lab on Osmosis and Diffusion

Brian Toohey Biology Mrs. Heimforth 12/06/10 Diffuse the Osmosis Section 2 Introduction Step 1 The scientific concept of this science laboratory was to find oneself how osmosis transferred the substance through the cellphones to reach equilibrium. Step 2 My hypothesis was that the al-Qaida with 60% saccharose then it would be heavier than the udder with tap wet or 30% sucrose. I thought this because I thought that in that respect would be more of a substance change in 60% sucrose. Section 3 Methods First get 3 reports of the same space of tubing then get 6 pieces of string. Fold one half(a) of the tube over and tie the end with string. and then add 5 ml of 30% sucrose solution in the tubes. Squeeze the radix quietly to release air fold it over and tie it with another piece of string. Rinse bags under body of piss then dry. Then weigh bags to near tenth of a gram and record. Then place one bag in each of the beakers. Then let them sit for 30 transactions do not touch. Remove bags quickly rinse and dry and reweigh. Then record results. Section 4 Results Step 1 60% sucrose 30% sucrose Tap Water before 6. 2 4. 6 5. 4 after 4. 3 4. 5 4. 8 Step 2 As the sucrose decreases so does the weight.I have found that when you decrease the tote up of sucrose it will cause the water to go outward do the bag weigh less. Section 5 Step 1 The lab experimentation did not support my hypothesis because the weight decreased more with the sucrose. Step 2 The specific data that made my hypothesis legal injury is the fact that when we added less sucrose the after weight decreased as shown in my graph. Step 3 The results did not support my hypothesis because when the water was greater on the inside it went outside by using osmosis only when when the water was greater on the outside it went inside making the bag heavier.Step 4 When we were conducting the experiment one bag might have sit down in the cups to long. Step 5 I have learned that water is the only thing that can be sent through the cell without using energy. I also learned that through diffusion purport spreads. Step 6 I learned that it is very hard to agree track of things you dont label it takes a lot of memory. )Section 6 References Postlehwait, John H. , and Janet L. Hopson. raw Biology. Austin Holt, Rinehard, and Winston, 2006. 65-73. Print