This means that where osmosis has taken place and the salt solution has a higher water potential solution the potato tissue will be even shorter and lighter, as in the solution there will be less water molecules moving freely and these are the water molecules which diffuse thus meaning that there will be less water molecules diffusing into potato cell membrane.
I then used a timer to allow the chips to be submerged in the sugar solution, which created a fair test as Osmosis would occur in the same amount of time. In my case, the potato tissues cell semi-permeable has cell sap very dilute salt and chemical solution inside its vacuole.
This was done by placing all the potato chips in the sugar solution at the same time, then, when all added, a timer would be immediately started for all chips, and later stopped at 20 minutes and the potatoes would be taken out, slightly dried and weighed again to find the new mass which would later be needed to find the change in the mass of the potato chips.
To make my experiment fairer I will make sure, When I put the potato pieces inside the test tubes that they are all 4cm long. After this, the chips were weighed to see if there was a major difference could be seen regarding the mass of the chip, and if a difference was seen, further modifications would be made to the chip.
Using three glass test tubes, I will set up the following configuration: The test will be a fair test because most of the factors that will be kept constant in the experiment. Osmosis — Potato chips in sugar solution Essays-Biology Coursework: The method I used for my investigation was better than the method for my preliminary test.
When the experiment are done, I will place the potato chips on paper towel to absorb excess salt solution and then weight it. The potato cell also has a cell walls that control torpor of the potato cell. Also my preliminary results may have been more inaccurate as only carried out the experiment once and in the final experiment I repeated it 3 times to improve its accuracy.
Changing the concentration of solution: This movement must take place across a partially permeable membrane such as a cell wall, which lets smaller molecules such as water through but does not allow bigger molecules to pass through.
Temperature- which is room temperature. 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.
I will collect all the equipment needed for this experiment. If I were to repeat the experiment I would have possibly spent more time cutting the potatoes to more of an identical size as it would ensure that all potatoes would be the same weight and dimensions.
I then added this water to the test beaker, meaning that ml was in the beaker each time. Biology Coursework: The effects of Osmosis on a potato chip in Sugar Solution.
Before planning the experiment, I will research osmosis, so that I can make predictions. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.
In this coursework experiment I plan to find the rate of osmosis in different vegetables (Carrot, Potato, Swede, Parsnip and Sweet Potato). 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.
Investigate the Rate of Osmosis in Different Vegetables (Carrot, Potato, Swede, Parsnip and Sweet Potato) - Investigate the Rate of Osmosis in Different Vegetables (Carrot, Potato, Swede, Parsnip and Sweet Potato) In this coursework experiment I plan to find the rate of osmosis in different vegetables (Carrot, Potato, Swede, Parsnip and Sweet Potato).
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 hazemagmaroc.comesis: Osmosis is defined as the net movement of water or any other solutions molecules.
Osmosis is a special type of diffusion which involves the movement of water molecules through a partially permeable membrane.
Osmosis occurs when water moves from an area of a higher concentration (distilled water) to an area of a lower concentration (sucrose solution). Essay on Osmosis of Potato Chips - Osmosis of Potato Chips Introduction For this coursework, I am planning to conduct a series of experiments which will hopefully show me how much percentage change in mass will happen in potato chips when osmosis is present.Osmosis in a potato chip coursework