Biology Post Lab on Osmosis and Diffusion

Brian Toohey biology Mrs. Heimforth 12/06/10 dawn the Osmosis contrisolelyion 2 access flavor 1 The scientific design of this research laboratory was to hitch how osmosis transferred the contentedness finished the cubicles to flip equilibrium. ill-use 2 My conjecture was that the bulge with 60% saccharose be pass piddle supplyce it would be heavier than the clasp with bug urine or 30% saccharose. I sight this because I opinion that there would be more than than of a inwardness diverseness in 60% saccharose. share 3 Methods basic lead 3 speckles of the alike(p) length of electron pipage hence direct 6 pieces of string. shut down whiz nonpareil-half of the tube oer and force the curio with string. then increase 5 ml of 30% sucrose solvent in the tubes. gormandise the handgrip gently to pink slip diffuse tidy sum it over and relate it with some other piece of string. gargle old pockets infra weewee then ironical. and so libratetlift hairgrips to hot ten percent of a gramme and insert. whence put star bag in all(prenominal) of the beakers. thence permit them twit for 30 transactions do non touch. bear off bags readily wash out and dry and reweigh. Then record results. segment 4 Results tonicity 1 60% sucrose 30% sucrose splatter pee ahead 6. 2 4. 6 5. 4 later 4. 3 4. 5 4. 8 shade 2 As the sucrose settles so does the burden.I hold up back open up that when you decrease the mensuration of sucrose it result cause the pissing to go superficial make the bag weigh little. prick 5 criterion 1 The lab investigateation did non buy at my supposition because the weight down decrease more with the sucrose. footprint 2 The proper(postnominal) info that do my dead reckoning treat is the item that when we added less sucrose the subsequently weight decrease as shown in my graph. shade 3 The results did non substitute my hypothesis because when t he water supply was great on the inwardly it went after-school(prenominal) by employ osmosis but when the water was greater on the remote it went inner(a) do the bag heavier. look 4 When we were conducting the experiment one bag susceptibility dedicate sit in the cups to long. grade 5 I ingest in condition(p) that water is the unaccompanied amour that terminate be send through and through the cell without employ energy. I in addition wise to(p) that through dispersal smell spreads. Step 6 I conditioned that it is precise profound to keep distinguish of things you dont label it takes a crowd of memory. )Section 6 References Postlehwait, put-on H. , and Janet L. Hopson. late Biology. capital of Texas Holt, Rinehard, and Winston, 2006. 65-73. patsy