Investigating the Effects of Varying Sugar Concentration on the Amount of Osmotic Activity Between the Solution and Potato Tubes Hypothesis: Osmosis is defined as the net movement of water molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement takes place across a partially permeable membrane e.g. a cell wall. This means that the cell wall will let smaller molecules such as water through but does not allow bigger molecules
I will add pieces of potato to varying concentrations of salt solution, wait on each solution and then record the results. I will eventually use the results to measure the percentage change in mass of the potatoes. To gain accurate results, I will have to make the experiment a fair one, to do this I will implement the following: [IMAGE] Wash my hands before preparing any potato samples. -So no grease, dirt or any salts transfer from my hands to the potato pieces before the experiment
Osmosis in Potato Tubes Osmosis: Osmosis is the movement of water molecules through a semi-permeable membrane from a high concentration to a low concentration. Diagram: [IMAGE] [IMAGE] Aim: To see the effects of different concentration of sugar solution on Osmosis in potato tubes. Key factor: In the investigation we change the sugar solution from: 0%-10%-20%-30%-40%-50% this is the independent variable; the dependant variable is
The Solute Concentration of a Potato To find out what the solute concentration of a potato is, this shall be done by finding out the effect of Osmosis on a potato. Prediction: That if there is more water outside the potato than inside, the potato will increase in size. If however there is less water outside the potato than within, then I shall expect the potato to shrink in size. I think this because of the laws of Osmosis. Osmosis is the diffusion of water through a partially permeable
of water molecules causes the cells to become either turgid, which is when the cells are filled with water, or flaccid, which is when the cells are 'limp' with little water. Aim To find the concentration of sucrose in cells of carrot and potato. Osmosis When a substance such as sugar dissolves in water, the sugar molecules attract some of the water molecules and they stick to the sugar molecules. This means that there are fewer free water molecules in the solution. When two different
of the solution in the vacuole of the potato. Prediction I predict that when the potato chip is placed into the water solution, its mass will increase because that water moves from a high concentration to a low concentration. When the potato chip is placed in 100% salt solution, I predict its mass will decrease. Variables * Concentration of the salt * Size of the potato chip * Time of incubation * Variety of potato * Skin on potato chip * Temperature * Volume of water
distilled water is surrounding the potato after a period of time, the potato will become turgid, and therefore become, stiffened, hard and enlarged, as the water concentration in the beaker would be much higher than the water in the potato. I also predict that as more molars of sucrose solution after a certain point is used, the potato will become more flaccid, and therefore become more soft, floppy, and smaller, as the water concentration in the potato would be higher than the water concentration
Aim- • To investigate the osmotic effect of changing the concentration of sucrose solution; distilled water, 20% sucrose solution, 40% sucrose solution, 60% sucrose solution on the change in mass of potato cylinder after 30 minutes of being in solution. Introduction- Osmosis is the movement of water molecules from a region of high Concentration to a region of low concentration through a semi-permeable membrane. If a plant cell is places in a hypotonic solution the cell has a lower water concentration
(high). Seven tubes were tested that had 10 drops of a different liquid such as onion juice, potato juice, sucrose, glucose, distilled water, reducing sugar, and starch solution. In the Iodine starch test water, starch, milk, tofu, and apples was tested. The blue indicated that there was starch and yellow indicating there is no starch. In the biuret test for protein
Osmosis Experiment Experiment to investigate how equal masses of potato are effected in different concentrations of 1molar sucrose soloution. Aim: To investigate if osmosis occurs in potatoes, and if so, how it affects potatos of equal mass (2.5g) in different molar solutions of sucrose and water. Apparatus: -Cutting tile which will be used to cut the potato on. -Knife which will be used to peel the potato with and to cut to correct mass. -Burette which will be used to measure
THE EFFECT OF OSMOSIS AND DIFFUSION ON POTATO Ivan Salazar The Effect of Osmosis and Diffusion on Potato Anatomy & Physiology Lab 2101-2002 February 7, 2016 The purpose of the Tonicity lab was to help identify the effects of an isotonic, hypertonic, and hypotonic solution to a slice of potato. The difference between diffusion and osmosis is that diffusion is the movement of particles or molecules from a region of higher concentration to a region of a lower concentration. While osmosis consists
particles have alot of energy, but after 37c, the rate of reaction will decrease rapidly because the substrarte and enzyme no longer it together so the enzyme beomes useless and ev... ... middle of paper ... ...s a different distance in the test tube which means the further in the tubig was,the more water was taken up.This would affect the results because the more water taken up by the rubber tubing,the longer and the more oxygen it would take to push the water out.This means that if the experiment
reaction. My input variable will be the surface area. The potato which contains the Catalase will be cut into piece this size: 1cm x 1cm x 2cm. Test tube A will have a piece of potato which is this size. Test tube B will have this size potato in but cut in half and Test tube C will have this size potato in it but cut into thirds, this means the surface area is gradually increased. The surface area for the potato in Test Tube A = 10cm B = 12cm C = 14cm This shows that there
"flaccid." This is exact opposite of "turgid". The contents of the potato cells shrink and pulls away from the cell wall. These cells are said to be “plasmolysed”. In my experiment, I will analyse the effect of various concentrations of sugar solution on the potato slices and will use the following equipment: Equipment and Materials: · Dried potatoes. · Kitchen knife. · Ruler. · Test tube rack. · Test tubes. · Concentrated solutions. · Measuring cylinder. · Water
solution has on the amount of osmotic activity between the sucrose solution and a plant cell. The plant cell I have chosen to use is a potato tuber from which I plan to cut potato chips of equal length which I will place in test tubes filled with varying concentrations at equal volumes of sucrose solution. After a set amount of time I will remove the potato chips and record the change in length. BACKGORUND KNOWLEDGE High water potential is a solution which has a high concentration of
Investigating Osmosis In A Potato Introduction: "Osmosis is typically defines as the flow of one constituent of a solution through a membrane while the other constituents are blocked and unable to pass through the membrane. Experimentation is necessary to determine which membranes permit selective flow, or osmosis, because not all membranes act in this way. Many membranes allow all or none of the constituents of a solution to pass through; only a few allow a selective flow. In a classic
occur within the weight that either been gained or lost on the potato. To make it a fair test I will make sure that the tests will be conducted fairly. Osmosis: is the diffusion of fluid through a semi-permeable membrane from a solution with a low solute concentration to a solution with a high solute concentration until there is an equal concentration of fluid on both sides of the membrane. Equipment list: · Test tubes ============ · Measuring cylinders · Stopwatch · Potatoes
of osmotic activity between the solution and a potato chip of a given size. I will also endeavour to find the exact (or as near as possible) concentration of sucrose solution when no osmosis occurs and the concentrations are equal. Preliminary Work In a sense, preliminary work is as important as the actual experiment. It allows you to make hypotheses before performing actual tests. For my preliminary work, I used a 50 mm piece of potato. It was easy to cut 50 mm (using a Vernier calliper)
Osmosis Investigation How different concentrations of sucrose solution effect potato tissue. Aim How do different concentrations of sucrose solution effect potato tissue. Background Information Osmosis is the movement of water molecules though a partially permeable membrane from an area of high water potential to an area of low water potential. High Concentration Low Concentration The membrane lets small water molecules pass though but not large ones. The flow continues
Effect of a Concentration of Water on the Mass of a Potato Aim: My aim is to find the percentage change of mass when a small piece of potato is placed in to molar sucrose solution Apparatus: * Molar sucrose solution 0.0 - 0.5 * Potato * Cutting board * Knife * Weighing machine * Glass test tube * Glass test tube holder Plan: - ======= My plan is too find the percentage change of mass of a small piece of potato when placed in to molar sucrose solution by using