Biology coursework osmosis conclusion

Biology coursework osmosis conclusion

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Biology Coursework - Osmosis

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Follow 0 followers 1 badge Send a private message to emilY? The carrot gains weight in normal water, and decreases weight in concentrated sugar solutions.

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Biology Coursework

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And after that the vegetable would lose mass as water moves out of the cells into the surrounding high concentration solution.

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Biology Coursework: Osmosis in Potato Cells

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We just need to check something in your message and will publish it as soon as we can. Investment banking and consultancy Replies:

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Investigate Osmosis

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Check out the All Forums page. The result table is the main source of evidence.

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An Investigation to Demonstrate Osmosis Using a Potato

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Documents Similar To Biology Coursework.

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Overall, I am very pleased with these conclsuion and with the evidence I have so far, that osmosis occurs when there is a high concentration and a low concentration, both aside a semi-permeable membrane.

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It will lose water by osmosis. Accounting and finance Replies:

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As it is a special method of diffusion exclusive to water, it also allows dilute and concentrated solutions to balance their strengths Background Information A factor that effects how much water moves into a cell is the solute concentration within it.

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Advice on everyday issues Replies:

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In my investigation I found a definite relationship between the 2 variables — weight and concentration of sucrose. Then I will empty the solution from the test tube biology coursework osmosis conclusion pouring it in the sink and remove the potatoes conclusoon hand and place them one by one on the scale.

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Sign in to join this conversation New here? You get these gems as you gain rep from other members for making good contributions and giving helpful advice.

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An example of diffusion is when an aerosol is sprayed. I think I should specifically be aware of the scales, because they alter a lot.

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Find your perfect uni place go.

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It is the diffusion of water biology coursework osmosis conclusion from a place where they are in a higher concentration, to a place where they are in a lower concentration, through a selectively permeable membrane. Follow 0 followers 1 badge Send a private message to emilY?

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Well, I'm not entirely sure how coursework is organized, however I can say that a hypothesis is very important in practical work. This is my second attempt, and the results are correct this time.

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I will measure the weight of the potato in grams, and the concentration of sucrose in percentage and molars.

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However, Table 2 shows some accurate results. 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.

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Importance of Magic and Transformation in 'The Tempest'. When water has another substance dissolved in it, the water molecules have less potential to move.

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A solution with a high concentration of sucrose or whatever you're doing means that the surrounding solution has a low water potential, or one which is more negative.

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Make your revision easier Don't miss out on a place at uni - get clearing email alerts Study help rules and posting guidelines Can you help? I will be able to change the input of my experiment.

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The vacuole pushes against the cell wall, and this in turn tops the cell from bursting. Cars and motoring Replies:

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I assume that I used two different scales, and have got all the weights jumbled up. An example of cnclusion is when an aerosol is sprayed.

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The weight taken at the beginning is also not correct, so I may have made a mistake right from the start. I took down the results, but did not see what was wrong at first.

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After exactly 20 minutes the potatoes should be taken out of the solution and re-weighed. This is because osmosis is the movement of water molecules from a region of high concentration to a region of low concentration, through a semi permeable membrane.

But then there should be an equilibrium point where there is no mass change it might lie in between values you measured though and you'd need to find it from your graph. If there is a higher concentration of water in the potato, then the water will go out of the potato and into the sucrose solution. In a low concentration of water the amount of solute is high.

In potato cells, the cells would increase in length, volume and weight because of the extra water in the potato. In a low concentration of water the amount of solute is high. On the other hand, the osmotic potential of a cell is known as the water potential. I will measure the mass before and after the experiment to use the results to calculate the rate of osmosis, and to find trends in the vegetables.

Sucrose Solution and Water two beakers to hold them. When a solution is hypertonic, it contains a low concentration of solute in this case sucrose and a high amount of water. I began to obtain results which showed gain instead of loss.

What's the best type of cheese? This has pores holes in it which are very small, and selects what it wants to let through i. As the cytoplasm shrinks further and further into the centre of the cell, the cell wall gets left behind. Food and drink Replies: Check out the All Forums page. But in a low concentration of water the amount of solute e. I would have to do more research to what I have already done in the conclusion on osmosis, and see what actually happens, and see if it occurs in plant cells all the time.

In an isotonic solution, no net osmosis occurs. The cell membrane, surrounding the cytoplasm, tears away from the cell wall. I was wondering if anyone could help me out with my coursework. New Year Blogs Replies: This is because if they are not wiped, the weight would increase, and will not be accurate. Check out the All Forums page. Follow 2 To ensure the experiment is fair, I will control all the other variables Temperature, size of chip at 5cm x 1cm, concentration of solution at 0.

It becomes flaccid, in which the cell would feel soft, limp and weak.

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