Water Potential Investigation Aim: To determine the water potential of potato cells and sweet potato cells during the process of osmosis. (Only water molecules can pass through by the process of osmosis) Osmosis is the movement of water particles from a low region of water concentration to a high region of water concentration through a partially permeable membrane. A partially permeable membrane is known as the barrier which allows certain substances to move across, such as water molecules
Determining the Water Potential of Potato Tubers using Gravimetric and Chardakov Techniques 1. INTRODUCTION: Water potential (W) is the measure of free-energy status of water in plant cell, which is the driving force governing the movement of water into and out of the plat cell and affect various metabolic activities (O’Leary, 1970). Water potential is depends on different solute concentrations, pressure and matrix a particle; measured in Mega Pascal’s (MPa) and written as: W = s + p
Investigating the Water Potential of Celery Cells Aim === I will be investigating the water potential of celery and to find out which solution will be isotonic with the celery cells, in other words equilibrium between the two no water will leave the cell, or enter. I will do this by following this method. Method 1. Cut a 5 cm length of celery stem 2. Cut through the grooves to divide the stem into thin strips 3. Dry the cell sap from the strips using a paper towel 4.
Determining the Water Potential of Potato Tuber Cells I will carry out an investigation that will enable me to determine the water potential of the tested potato tuber cells. Water Potential is the measurement of the tendency of water molecules to move from one place to another. (Ridge 1991) Water always moves down the water potential gradient, therefore moving from an area of higher water potential to an area of lower water potential. Equilibrium is reached when the water potential in one region
When the water potential of the surrounding solution is less negative than that of the potato cells, water enters the cells’ vacuoles by osmosis causing the turgor of the cells to increase. Method 1. Using a cork borer remove a core of potato. 2. Use a white tile to push the cork borer into the potato. 3. Using a scalpel or razor blade cut the skin off the ends of the potato cores. 4. Cut the potato cores into 30 disks 5mm thick, using a ruler to measure the thickness. 5. Place
Water Potential of Potato Tuber Cells AIM: To find the water potential of potato tuber cells. HYPOTHESIS: When cells are put in a solution with a different water potential than inside of them, cells will gain or loose water. If concentration of solution is the same, there will be no change in mass. THEORETICAL BACKGROUND: If a sample of tissues immersed in solution of varying water potential (concentration of water molecules), the cells will loose or gain water by osmosis
Investigate the Water Potential of Potato Cells Introduction In my investigation, I hope to determine the water potential of potato cells. The plant material I will use in my investigation will be potato chips, which I will cut myself prior to the investigation. I hope to find the concentration of a solution where the chip stays the same mass and length, which will tell me that the water potential inside the cells is the same as the water potential outside the cells. Background
Water Potential of Potato Cells Aim: To demonstrate the Water Potential of Potato Cells. Objectives: · To show the water potential of potato cells using various measured concentrations of a sucrose solution and pieces of potato. · To record and analyse data to verify observed results. · The method and procedure was carried out as per instruction sheet. Observations: The experiment shows that the lower the concentration of the sugar solution, in the Petri dish, the mass
Determining the Water Potential of a Potato Chip Aim: To determine the water potential of a potato chip Background knowledge What is water potential? Water potential is the measure of the tendency of water to move from one place to another. Like the movement of water from potato chip to surrounding solution or vice versa. Water always moves from an area of high water potential to a region of lower water potential. The addition of solutes decreases water potential making it more
Finding the Water Potential of Potato Cells Aim: Our aim was to discover the water potential of potatoes cells using different concentrations of sucrose solution Science: Osmosis is 'the movement of water molecules from a region of higher water potential to a region of lower water potential through a semi-permeable membrane' www.s-cool.co.uk 'Water can move between cells (unligninified) freely as the cell walls are permeable. However its movement is controlled by a number of factors
The Effect of Sucrose Solutions on Water Potential Ronak P. Patel South Western High School The Effect of Sucrose Solutions on Water Potential Results Table 1: Raw Data for 3 Trials (Initial Weight and Final Weight) Cups Cup 1 Cup 2 Cup 3 Cup 4 Cup 5 Cup 6 Cup 7 Solution Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Water Cell Potato Potato Potato Potato Potato Potato Potato Initial Weight (T1) 1.31g 0.79g 0.84g 0.90g 0.63g 1.00g 0.62g Final Weight
Determining the Water Potential of Potato Cells Results table Sucrose (1%) Initial mass of discs(g) Final mass of discs(g) Change in mass(g) Change in mass(1%) 0.0/distilled water 1.82 2.13 0.31 17.8 0.1 1.77 1.84 0.07 3.9 0.2 1.76 1.83 0.07 3.9 0.3 1.86 1.71 -0.15 -8 0.4 1.73 1.47 -0.26 -15 0.5 1.88 1.35 -0.49 -26 Trends and Patterns There is negative correlation on the graph so water is moving
A Comparison of the Water Potential of Potato and Sweet Potato Tubers Aim The aim of this experiment is to compare the water potential of two different plant tissues, potato and sweet potato tubers, by measuring the gain or loss of water when samples of the tissue are placed in a range of concentrations of sucrose solutions. Background information Osmosis is the movement of water molecules from a region of their higher concentration to a region of their lower concentration through
HP: Potentials and Limitations Name School Hewlett- Packard has long been regarded as one of the companies at the forefront of the campaign for sustainable industry and responsible waste management. With the ICT sector (information and communication technologies) contributing to about 2% of the world's carbon footprints, Hewlett-Packard fully transformed its organizational structure to integrate concepts of sustainability. For instance, responsible water consumption, maximization of conference
predict that the warmer the squash ball is the higher the bounce height of a squash ball will be. Apparatus: * water from a kettle * kettle * ruler * clamp * clamp stand * beaker * squash ball * thermometer Diagram: Method: § Collect all the equipment needed for this investigation. § Set up the equipment as shown in the diagram. § Pour water from the kettle into the beaker until it is half full and put a thermometer in the beaker to measure the water's
Gravitational potential energy Gravitational potential energy (GPE), is the energy of position or place. When learning about GPE we need to learn the formula and understand the concept. The whole general concept of energy is energy cannot be created nor be destroyed. Gravitational potential energy is energy an object possesses because of its position in a gravitational potential energy is for an object near the surface of the Earth where the gravitational acceleration can be assumed to be at
When molecules bump into each other, the kinetic energy that they have can be converted into chemical potential energy of the molecules. If the potential energy of the molecule becomes great enough, the activation energy of a reaction can be archived and a change in chemical state will result. Thus the greater the kinetic energy of the molecules in a system, the greater the resulting chemical potential energy. As the temperature of a system is increased it is possible that more molecules per unit time
outweighed it’s costs. This point will gain a painful clarity in the years to come if the predictions of some meteorologists come true and the effects of global warming are felt. For years developing societies have been taking enormous amounts of potential energy locked within pressurized biomass that took millions of years to store in the Earth’s crust and releasing it into today’s world. The Earth is a relatively closed system and the enormous release of spent energy and its polluting byproducts
Investigating the Bounce of a Squash Ball This investigation is associated with the bounce of a squash ball. I will be investigating 4 different types of squash balls, which have different, bounce properties and compare them to each other and relate them to why each different type of squash ball is used. The relationship will be associated with how different balls are used at different levels of proficiency in the game of squash i.e. the squash balls that don't bounce much will probably
previous exposure to alcohol. After consuming one and a half Bacardi Breezer’s (1.5 standard drinks) she begins to feel nauseas and has a pulsating headache. It is important to understand the mechanism of action of ethanol in order to determine the potential effects on the patient. This report will investigate the underlying molecular mechanisms of ethanol. Ethanol is a central nervous system (CNS) depressant. It is the principal psychoactive constituent in alcoholic beverages making it the most commonly