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.I roduc io : Osmosis is a e diffusio of wa er be wee wo solu io s ha differ i solu e co ce ra io a d ha are separa ed by a selec ively permeable membra e. Hyper o ic solu io – higher solu e co ce ra io ou side he cell. Hypo o ic solu io – lower solu e co ce ra io ou side he cell. Iso o ic solu io have he same solu e co ce ra io ou side a d i side he cell.Hypo hesis: Po a o cells i 0% solu io of sal will swell up. Po a o will gai weigh , because e moveme of wa er will be i o he cells. Wa er moves dow he co ce ra io gradie . Po a o cells i 2% a d 3% solu io s will shri k. Wa er moves ou of he cells o regio s of grea er solu e co ce ra io . Po a o cells i 1% solu io will cha ge li le i cell size or shape. he differe ce be wee solu io co ce ra io a d po a o co ce ra io is small. So here is o big moveme of wa er.Ma erials: K ife, po a o, 4 sal solu io s ( 0%, 1%, 2%, 3%), paper, razor blade.Me hod: Cu 12 plugs from similar po a oes. Remove he e ds of each plug a d ski . Make up four solu io s of sal ( 0%, 1%, 2%, 3%). Weigh he plug se s. Place plug se s i o each solu io a d co i ue o measure or weigh hem a specified ime i ervals. Repor mea values o ly fo measureme s or weigh s. De ermi e he perce cha ge i le gh or weigh for he po a o i each solu io . Calcula e he exac perce of sal i he po a o cell from he graphed da a. Sal Solu io s I i ial weigh (g) Weigh of plug se s af er some ime: Mea perce age cha ge i weigh 12 mi . 22 mi . 40 mi . 52 mi . 0% 5.61 5.87 6.01 6.13 6.25 11.4% 1% 8.84 8.85 8.87 8.90 8.86 0.22% 2% 10.02 9.61 6.51 9.20 8.99 -10.3% 3% 6.64 6.01 5.77 5.48 5.31 -20% We ca ’ compare he cha ges i weigh usi g grams, because each plug se had differe i i ial weigh before placi g hem i o sal solu io s.Co clusio a d evalua io : From he graphed da a he perce of sal i he po a o cell is 1.1%. he origi al po a o cell co ce ra io is 0.9%. he error could be, because he wa er ou side po a o has i flue ce o weigh a d o accura e measureme of mass by o exac scales, which showed o ly o e decimal place. If he co ce ra io of wa er is o equal across a po a o cell membra e (co ce ra io of wa er ou side he sell is more or less ha 0.9%), osmosis e ds o occur. Wa er will move osmo ically o regio s of grea er solu e co ce ra io (from hypo o ic o hyper o ic solu io s). If wa er co ce ra io ou side a d i side he cell is equal, wa er shows o e osmo ic moveme from o e o he o her – iso o ic solu io s. he experime ca be improved: Firs ly, by dryi g po a o from wa er ou side he po a o. Seco dly, by usi g scales, which have more accuracy.
But from what I know of Father Lawrence's endeavors to sow the seed wherever it would find good planting, I am rather more inclined toward the process of osmosis: that osmosis which involves the soft receptive cunt of the female and its inordinate capacity for accepting the offertory of spunk of which substance Father Lawrence seemed to be blessed in super-abundant quantity. “I must sample the Anjou,” he decided after another series of sucking kisses and cooing sighs proffered by his fair accomplice. “But do you know that, after having serenely taken my ease in that little village of Provence, I have the bucolic yearning to tap the good wine out of a barrel rather than to take it from a bottle, for bottle-feeding is more fitting for babes. And the only thing I have to do with babes, apart from baptizing them, is in the conception of them which, I need not tell you, my daughter, is forbidden by Mother Church in my estate.” “Oh, I will eagerly tap your barrel for you, mon Pere,” Georgette passionately vouchsafed