Gcse biology: osmosis in a potato aim to investigate the effect of placing a piece of potato in a given strength of sugar solution prediction i predict that, as the solution becomes more concentrated the more the cell will shrink, as the water, of higher concentration inside the potato cells, flows down a concentration gradient into the solution, which has a lower concentration of water. Tip: i used a french mandolin to slice potato sticks for the 1c lab and got great results (r squared = 0996) for one of my teams i used the 'waffle cut' technique and produced 'waffle chips,' which i then 'punched' with a small dish to produce uniformly sized 'waffle discs. Essay on osmosis investigation in a potato - osmosis investigation in a potato aim: to investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given size. Gcse biology coursework osmosis potato – 411847 – bienchoisir gcse biology coursework osmosis potato – 411847 – bienchoisir, conseils travaux, questions travaux, projets travaux biology coursework osmosis in a potato – the student room i was wondering if anyone could help me out with my coursework.
The following is a short sample from this piece of coursework: to see how concentration affects osmosis on a potato the knowledge i have on osmosis and i will then carry out the investigation to prove whether concentration affects osmosis in a potato using my results i will then try to find a pattern and prove my prediction to be. Osmosis in potato tuber cells the weighing method biology essay print reference this disclaimer: (higher than that of the potato), water will diffuse into the potato and so cause its mass to increase the results in bold were taken by me table 2 – the final masses of the potato cylinders for different concentrations of sucrose. Biology gcse coursework: osmosis in potato chips skill area p: planning aim: to investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given size.
Osmosis : 0 1 2 describe how water moves from roots to the leaves [2 marks] 0 5 a student investigated the effect of different sugar solutions on potato tissue this is the method used table 4 shows the results table 4 stages in the cell cycle non-dividing cells stage 2 stage 1 stage 4 stage 3. Osmosis and diffusion: percent difference in mass based on sucrose solution concentration ap biology, mod 5 abstract the process of osmosis was examined through this experiment using dialysis tubing and potato cores. According to the seventh edition of campbell/reece’s biology textbook, osmosis is, “the diffusion of water across a selectively permeable membrane”(glossary campbell) because diffusion is the fundamental process, the characteristics of diffusion apply to osmosis.
And the results from this experiment show a nice downward curve the lower salt concentrations result in an increase in length of the potato strip, meaning water has entered the potato strips by. Biology lab report: osmosis done by: seonlim lee (lynn) g10b purpose -to find the isotonic point of the potato -to determine the weight changes after submerging the potato in different concentration of salt water for 20 minutes hypothesis - the isotonic point of the potato will be around 04 molecular concentration because potatoes are more. Diffusion is the movement of particles from a high to lower concentration osmosis is the diffusion of water across a membrane active transport moves particles from low to higher concentration.
Osmosis is the process in which solvent molecules moves through a semi-permeable membrane from a region of higher concentration to a region of lower concentration until the amount of fluid is. The mass of the potatoes was also recorded and with the results the isotonic point could then be calculated though the results recorded are reasonable, implications in experimentation and methods must be considered. I osmosis lab: potatoes and elodea ii purpose/hypothesis: in this lab we interpreted results of how the potato cells reacted to different salt environments (hypertonic, hypotonic, and isotonic) in the plasmolysis part of the lab we looked at the cells of elodea plants under a microscope with 1 molar solution my hypothesis is that when we put salt on the elodea cells the water in the cell.
Osmosis - essay - essaysforstudentcom osmosis coursework variables during the experiment the variables must be controlled in that the results be fair and accurate time- 20 min ib biology ia: osmosis - scribd ib biology ia: osmosis - free download as pdf file. Tell students to cut their potato in half lengthwise and place one in each dish, face-down have students title their notebooks 'osmosis' and make a sketch of their potato bowls. When the potatoes are removed from the solution, the osmosis stops i will then dry the potatoes using a paper towel being careful so that none of the potatoes fall apart i will place them into sets of three depending on when which solution they were placed in and weigh and measure them. Investigating the factors which affect osmosis the aim for this biology coursework is to investigate hoe the concentration of sodium chloride will affect the mass of potato chips that will be the same length and have same width.
Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution (high concentration of water) to a concentrated solution (low concentration of water) a partially permeable membrane allows water through, but won't let. Aside from obviously being a photocopy and a couple of minor formatting problems, this is a laudable lab activity for exploring osmosis biology groups cut potato chunks into equal volumes and record the mass of each. Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution (high concentration of water) to a concentrated solution (low concentration of water) a partially permeable membrane allows water through, but won't let the larger molecules dissolved in water pass through. Biology gcse coursework: osmosis in potato chips skill area p: analysis the trend that my graph and results show is that when the potato was placed in a solution that had a higher concentration than the chip itself, the potato lost weight (04, 06, 08 and 10 molars.
For my coursework i have to investigate osmosis in potato cells i need help with my prediction and factors that affect the osmosis gcse biology osmosis coursework watch announcements five things you should do when you go to uni if you start with potatoes of the same weight it will be easier for you to compare results etc prediction. Biology gcse coursework: osmosis in potato chips skill area p: planning aim: to investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given sizehypothesis: osmosis is defined as the net movement of water or any other solutions molecules from a. Osmosis lab of potato in three types of water 1 osmosis lab investigation1 general purpose: the general purpose of this lab is to investigate the effect that a solution has on a livingcell. They will observe the processes of diffusion and osmosis, first in two teacher-led demonstrations, and then through two lab activities: the diffusion of starch molecules through a plastic bag and potato cores immersed in isotonic, hypotonic, and hypertonic solutions.