'Biology Post Lab on Osmosis and Diffusion\r'

'Brian Toohey Biology Mrs. Heimforth 12/06/10 Diffuse the Osmosis percentage 2: Introduction Step 1: The scientific concept of this lab was to see how osmosis transferred the substance finished the cells to reach equilibrium. Step 2: My possibleness was that the pocket book with 60% sucrose wherefore it would be heavier than the base of operations with tap water or 30% sucrose. I thought this be pillowcase I thought that there would be more of a substance change in 60% sucrose. Section 3: Methods First raise up 3 pieces of the same length of tubing therefore get 6 pieces of string. Fold one half(a) of the tube over and tie the end with string.Then total 5 ml of 30% sucrose declaration in the tubes. Squeeze the dish antenna gently to hold out air fold it over and tie it with another(prenominal) piece of string. Rinse nucleotides under water then dry. Then weigh bags to nearest tenth of a gram and show. Then place one bag in each of the beakers. Then let them place for 30 minutes do not touch. eradicate bags quickly rinse and dry and reweigh. Then record results. Section 4: Results Step 1: | 60% sucrose | 30% sucrose | Tap pee | before | 6. 2 | 4. 6 | 5. 4 | by and by | 4. 3 | 4. 5 | 4. 8 | Step 2: As the sucrose decreases so does the weightiness.I admit imbed that when you decrease the amount of sucrose it will cause the water to go outward making the bag weigh less. Section 5: Step 1: The lab tryation did not support my hypothesis because the weight decreased more with the sucrose. Step 2: The specific data that made my hypothesis improper 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 great on the inside it went remote by exploitation osmosis but 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 t o long. Step 5: I have versed that water is the only thing that dismiss be sent through the cell without victimisation energy. I also learned that through dispersal smell spreads. Step 6: I learned that it is very hard to keep track of things you dont sound out it takes a lot of memory. ;)Section 6: References Postlehwait, John H. , and Janet L. Hopson. modernistic Biology. Austin: Holt, Rinehard, and Winston, 2006. 65-73. Print\r\n'