The Effect of Surface Area on the Osmosis Rate of a Potato Essay

Diffusion and Osmosis Lab Introduction: 1) The relationship between the rate of diffusion, volume and surface area is that the surface area of a subject somewhat correlates with the volume of the object. When the surface area and volume are set up as a ratio, this gives a good idea as to how fast the rate of diffusion will be. The higher surface area to volume ratio, the faster the rate of diffusion. This is because then there is more surfaces to diffuse through and there materials to diffuse,

[Type text] [Type text] [Type text] _An experiment on the effect of surface area to volume ratio on the rate of osmosis of Solanum tuberosum L._ BACKGROUND A cell needs to perform diffusion in order to survive. Substances, including water, ions, and molecules that are required for cellular activities, can enter and leave cells by a passive process such as diffusion. Diffusion is random movement of molecules in a net direction from a region of higher concentration to a region of lower concentration

light intensity effected the rate of osmosis in plant cells. 1cm potato cubes were weighed, then added to 10% and 20% concentration NaCl solutions for 20 minutes and weighted again to calculate the mass diffusion. The tests undertaken with a high concentration of sodium chloride in full sun increased the osmosis rate as the solution was more hypertonic and kinetic energy increased the collision of molecules. This caused a greater amount of water to diffuse from the potato, into the salt solution, which

solute concentrations on both sides of the membrane are equal. The diffusion of free water across a selectively permeable membrane, whether artificial or cellular, is called osmosis. The movement of water across cell membranes and the balance of water between the cell and its environment are crucial to organisms. ("Diffusion And Osmosis - Difference And Comparison | Diffen"). A semi-permeable membrane known as the cell membrane surrounds the living cells of both plants and animals. Both solute concentration

solute concentrations on both sides of the membrane are equal. The diffusion of free water across a selectively permeable membrane, whether artificial or cellular, is called osmosis. The movement of water across cell membranes and the balance of water between the cell and its environment are crucial to organisms. ("Diffusion And Osmosis - Difference And Comparison | Diffen"). A semi-permeable membrane known as the cell membrane surrounds the living cells of both plants and animals. Both solute concentration

the cell. Osmosis, the movement of free water across the cell membrane, is demonstrated by examining the movement of material across the cell membrane of potato tissues. Potato tissues were put into various concentrations of NaCl to examine the effect of concentration on the potato tissues. Our hypothesis is if there is a higher concentration of NaCl, then the potato tissues will decrease in weight. In addition, the effect of concentration gradient and temperature on the rate of osmosis in an artificial

Lab 1- Surface Area and Cell Size: Introduction Background Information- Iodine is an indicator for starch. When iodine is merged with starch, it turns a dark purple/black color. Cells require nutrients in order to survive. Cells must eliminate waste in order to survive. Description of the Experiment- This experiment was done to provide evidence for why cells are so small. Basically, we pretended that each potato cube used was a single cell and the iodine is the nutrients (food) for the

Aim The aim of this experiment is to investigate the effects of different concentrations of sugar solutions on the rate of osmosis in plant cells. Equipment 5mm borer Knife White Tile Potatoes Beakers Measuring cylinder Stopwatch Sugar solutions

Osmosis and Diffusion Lab Saagar Chitale 10/13/14 AP Bio Pd.5 Introduction: The first part of this three part lab was an investigation that examined the relationship between rate of diffusion and the surface area to volume ratio. To simulate this, we used an agar cube with NaOH and phenolphthalein mixed in, and dropped it in an HCl solution. As the HCL diffused in and reacted with the phenolphthalein, we were visually able to see diffusion at work. Diffusion is the movement of molecules in

Aim: My objective is to plan and conduct an experiment from which I should be able to draw a firm conclusion that will either prove or disprove any predictions I make. This essay aims to assess and investigate the effect of various solution concentrations on the activity of osmosis in plant tissue. Background scientific theory: Plants exchange gases (CO2 and O2) in maintaining vital respiratory processes and in carrying out photosynthesis; they absorb certain minerals and sugars so to use