Osmosis in Potato Cylinders Aim: Trying to find the average sugar concentration in the potato cylinder cells. I will use potatoes for my experiment because they are convenient and shows fast results in osmosis. [IMAGE]The diagram to the right shows a basic plant cell, however, the difference between this diagram and the potato cells I will be using is that the potato will not be green as it does not need chlorophyll. The cell membranes in a potato cylinder are partially permeable;
Investigating Osmosis Using Potato Cylinders The aim of this investigation is to see how the sugar concentration of a solution eventually affects the size of a submerged potato cylinder. I am conducting this experiment to further my understanding of osmosis. The increase or decrease of the size of the potato cylinder can be explained by osmosis. Introduction:- The core scientific principle, related to my investigation is that of Osmosis, below I intend to relay information thus.
Sucrose Solutions on Potato Tiessue Planning For my GCSE biology coursework, I am going to conduct an investigation into the effect of different concentrations of sucrose solutions on potato tissue. Text Box: A measuring cylinder Apparatus =========================================== 18 test tubes [IMAGE][IMAGE] Text Box: 1M sucrose solution [IMAGE]A test tube rack [IMAGE] Cork borer Text Box: Distilled water[IMAGE] [IMAGE] A potato Text Box: White
Factors that Affect Osmosis in Potato Cylinders The aim of this experiment is to investigate the volume of sucrose solution and the weight and volume of other variables which affect osmosis in potato cylinders. In this experiment I will weigh and blot rings of potato and test them in different concentrations of sucrose solution. I hope to find sufficient results as to investigate this. In this experiment I will be investigating, and putting to test, the theory of osmosis. The scientific
the solute concentration of potato tissue; i.e. To investigate at which point the sucrose concentration is the same as the solute concentration inside the potato (an equilibrium is reached) Introduction Osmosis is the movement of water molecules from an area of high concentration; (a weak solution), to an area of low concentration; (a strong solution), through a partially permeable membrane. My experiment will prove that the concentration inside the potato is lower than the concentration
Hydrogen Peroxide Investigation When hydrogen peroxide is added to a piece of fresh potato, bubbles of gas are seen to form. When a bigger piece of potato is used, a larger number of bubbles is produced. A possible explanation for this observation could be that oxygen is produced when hydrogen peroxide is broken down by the enzyme catalase. A large piece of potato will contain a higher amount of catalase than a smaller piece and therefore produces a greater volume of oxygen. The Task
solution (0%, 0.25%, 0.5%, 0.5%, 0.75%, 1%) have effects on the size and weight of cylinders of potato that are put into them. * Also I aim to find out which of the concentrations affect the potato cylinders in size and weight the most and the least. Prediction: I predict that the concentration which will affect the size an weight the least will be 0.5. The 1.0 will lessen the weight of the potato cylinders but not the size, because there is a higher concentration of sucrose in it; and
measuring cylinder, pour 20cm3 of water in tube A and 10cm3 in tube B. Similarly, pour 20cm3 of 17% sucrose solution in tube C and 10cm3 in tube B. Working on a white tile, cut 6 cylinders of potato tissue out of a large potato using a cork borer. Work in the same direction. Cut all 6 to exactly the same length, eg 50mm, 60mm etc. Trim the ends at 90 degrees. Place 2 cylinders into each specimen tube. Leave the potato cylinders for 24 hours. Then using forceps, remove the cylinders from the
Find out the concentration of the cell contents of a potato Introduction Osmosis is the diffusion of water from a lower concentration of solute to a higher concentration of solute through a partially permeable membrane. This lets smaller molecules such as water, pass through but does not allow bigger molecules through. The molecules continue to diffuse until they reach a balanced state, where no area has a higher or lower concentration than any other. In a high concentration of water
Investigation Of Osmosis In Potatoes Aim: To investigate the affect of different concentrations of sugar solution on potato cells. Variables: The variables are; the concentration of sugar in the solution and the mass of the potato cylinder. We will measure the mass of a potato cylinder after a certain amount of time in a certain solution. Fair test: To keep the test fair we need to keep the controls the same. Like keeping the temperature the same so the kinetic energy doesn't
Investigation of Osmosis in Plant Cells My aim is to investigate osmosis in plant cells. I will do this by carrying out an experiment to find out the percentage increase or decrease in mass (grams) of potato tube, placed in varying concentration of glucose. Background Information - The theory of Osmosis. Osmosis is a special case of diffusion that involves water. It is the movement of water molecules across a partially permeable membrane from a region of high water concentration to
Investigating Osmosis in Potato Tissue Aim-We are going to investigate how 'osmosis' is effected by higher and lower concentrations of water using potato cylinders as selectively permeable membranes. A selectively permeable membrane is something only water molecules can pass through. We will cut eighteen potato cylinders to the same width and length using a scalpel and a corer on a white tile. We shall use the same potato for each cylinder. The cylinders should then be around the same
The Effect of Salt Concentration on the Weight and Length of a Potato Chip I am trying to find out if and how different concentrations of salt solution affect the weight and length of a potato chip in a certain amount of time. This will involve me performing the experiment, measuring the potato cylinders weight and length before and after the experiment putting results in a table producing charts showing the differences or similarities in results analysing the results and finally evaluating
plasmolysis. To prove this, I will be performing an experiment in which I will place potato cylinders into various sugar/water solutions for 24 and observing the effect this has on the potatoes. Method: 1) Use the boring rod to cut out 15 cylinder shaped pieces of potato of equal volume, cut them into 5cm strips. 2) Dry the chips with a paper towel, and record their weight. 3) Put three pieces of potato each into 5 tubes. 4) Label each tube with 0.0m, 0.25m, 0.5m, 0.75m and 1.0m.
Concentration on Osmosis in Potato Cells Apparatus: - * Potato * Blade * Cork borer * Stopwatch * Glucose solution * 50cm3 Measuring cylinder * Electronic Balance (scale in grams) * Five 200cm3 beakers * Forceps * Labels * Water bath Procedure: - * First cut the potato into half * Using the cork borer cut the potato to obtain five cylinders of potatoes (Make sure that the potato cylinders are from the same potato as the potato tissues maybe different
in the Stem Tuber of a Potato Planning In this investigation I am trying to find out what molarity of sucrose solution is same as the molarity of sucrose in the cells of a potato. In this experiment I am going to change the molarity of the sucrose solution out the cells of potato. I predict that if the molarity of sucrose solution outside the cells is isotonic to the molarity of the sucrose inside the cells then there will be no change in weight of the potato disks. I predict this
Changing the Concentration of Sucrose on the Movement of Water into a Potato Introduction Aim 1. To use different concentrations of sucrose solution to determine the internal concentration of the potato. 2. To use different concentrations of a solution more dilute than the internal concentration of the potato to find out what the effects of different sugar concentrations have on the movement of water into the potato. Theory ====== Osmosis is the movement of water from a dilute
mind that we have limited time and shall be conducting our experiments in a laboratory, measuring certain things may therefore be impractical. We shall therefore limit our investigation to the effect of three things: Cross-sectional area of plant cylinder, concentration of solution and temperature of solution. Variables There are three main types of variable; Independent (input), control and dependent variables. An independent variable, otherwise known as an input variable, is the variable
enzyme (catalyse) on Hydrogen Peroxide. Hydrogen Peroxide + Catalyse à Water + Oxygen 2H2O2 à H2O + O2 + Heat Apparatus & Diagram [IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE] Bung Potato Hydrogen Peroxide Water Collected Oxygen Delivery Tube Measuring Cylinder [IMAGE] Using the Equipment Safely It is important that we use the apparatus carefully, as safety will be an issue throughout the whole experiment. We will wear goggles and an apron or lab coat
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 · Sucrose (2m)