Writing Assignment 2 Results and Discussion These are to be written individually even if you worked in a group. This should be written in paragraph format. Each section should include the answers to the following questions Lab Topic: Effects of Osmosis with Potato Cells in Sucrose Solution Introduction: Small slices of potato are placed in six concentrations of sucrose: 0.0 M, 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M. The initial mass of potato is noted before being placed in the solution. The potato
Introduction In this experiment I am going to investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity, between the solution and a potato tuber of a given size. The purpose of this experiment is to demonstrate how living cells rely on osmosis, the diffusion of water. Osmosis is the movement of water molecules (H20) from a region in which they are highly concentrated to a region in which
Introduction: All living organisms require the ability to regulate the water transported into and out of a cell. This is process is called Osmosis, which is the movement of water from a region of higher water concentration to a region of lower water concentration through a selective preamble membrane. Osmosis is a type of passive transport; therefore, no energy is required for this change to occur. (Lodish, H, Arnold, B, Zipursky, S, Matsudaira, P & Baltimore, D, 2000) Independent variable: •
INTRODUCTION Osmosis is the movement of water molecules from high concentration to low concentration through semipermeable membranes, caused by the difference in concentrations on the two sides of a membrane (Rbowen, L.). It occurs in both animals and plants cells. In human bodies, the process of osmosis is primarily found in the kidneys, in the glomerulus. In plants, osmosis is carried out everywhere within the cells of the plant (World Book, 1997). This can be shown by an experiment with potato
The effect of osmosis in potato cells with different concentrations of sucrose solution Aim: To test the effect of different concentrations of sucrose solution to osmosis in a potato cells by putting potato pieces in test tubes of water containing different concentrations of sucrose solution. Scientific Theory: Osmosis is defined as the movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration
The Effect of Different Strength of Salt Solutions on Potato Cells Through Osmosis An Investigation to find out how different strengths of salt solution affect potato cells through osmosis. Aim I aim to investigate the effect of different concentrations of salt solution on potato cells when osmosis occurs. Introduction I intent to set up this experiment using equally sized cylinders of potato submerged in salt solutions of different concentrations. I will
The effects of osmosis across a semi permeable cell membrane as modeled with dialysis bags By: Thiago Lusvarghi Student Number: 0311147 Partners Names: Carissa Laurin, Mutanga Alpho Kabiseba, Christa Myers Course Code: BIOL 1506E Lab Session: Tuesday 1:00 – 4:00pm Date of Submission: Tuesday October 21st 2014 Abstract Osmosis is the process in which water diffuses across a semi permeable membrane, and is the reason for cellular stability in a system, generally a cell. The diffusion of water
Osmosis is the diffusion of water entering and leaving cells to keep a balance of concentration and water between the cell and environment. The process of osmosis constantly occurring in a cell and is critical for the cells in animals and plants for survival. Factors that influence the rate of osmosis are temperature, molecular size, pressure, and concentration gradient. These variables can increase or decrease the rate which osmosis occurs. If a cell takes in too much water through osmosis, it can
Jeremy Saba | [The Effect of surface area to volume ratio and solute concentration on osmosis.] | The aim of this experiment was to test the effect of surface area on osmosis and the effect of solute concentration on osmosis. To test this aim to hypotheses were devised. 1) If potato pieces are immersed in various salt solutions, then the pieces with the greatest surface area to volume ratio will experience the greatest weight change, because more water can move by osmosis across the potato cell’s
Osmosis Lab Report by Evan Gerber Claire Cambron First Lab Report Wednesday 10:30am February 20, 2013 Theresa Gburek Abstract The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient, the faster the rate of diffusion would be. To test this, dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific