Diffusion Lab

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  • Diffusion Lab

    670 Words  | 3 Pages

    this lab was to see firsthand the diffusion of a substance across a selectively permeable membrane. Diffusion is the movement of molecules from an area of high concentration to an area of lower concentration until both concentrations are equal, or as you could more professionally call it, equilibrium. This concept is one that we have been studying in depth currently in Biology class. Procedure We separated into groups of two each, making sure that we had the following materials for the lab: graduated

  • Diffusion Lab

    710 Words  | 3 Pages

    Diffusion Lab Problem Will starch, water, glucose, iodine or a combination of the above diffuse across the membrane of the dialysis bag causing the bag to either expand or shrivel? Hypothesis & Strategy I believe that the smaller molecules, such as glucose and water will diffuse through the dialysis bag’s membrane causing it to expand, due to the concentration gradient. I would test this hypothesis by filling the bag with a solution consisting of water, glucose and starch, tie it off and weigh

  • Osmosis Diffusion Investigation Lab Report

    1986 Words  | 8 Pages

    Osmosis/Diffusion Investigation 4 Lab Report Cappy Pierce November 6th 2015 Labs done with: Ethan Anderson, Emily Levin, and Logan Lucas Instructed by: Mrs. Nyland Abstract: Diffusion and osmosis are necessary for the efficient transport of substances in and out of living cells. Diffusion is the most common and effective transportation process between cells and their surroundings, the movement of a substance along a concentration gradient from high to low, allowing essential nutrients and compounds

  • beet lab

    831 Words  | 4 Pages

    For the lab experiment for testing the stability of beet cell membranes using pH, many materials were used as follows. Obtaining a beet we punch out cores, using a cork borer. After washing the cores we put each one inside a separate test tube, and added a different pH solution in each one. After 3 minutes in these exposure solutions, we took the beet out with a dissecting needle. Then transferred each beet to a separate test tube containing deionized water. After 20 minutes in these diffusion solutions

  • Diffusion And Diffusion Essay

    727 Words  | 3 Pages

    The overall purpose of the experiments in this lab was to introduce the function and structure of the plasma membrane, describe the workings of diffusion and osmosis, and to demonstrate how different factors such as particle size, temperature, and space of diffusion area affect the rate of diffusion. With the results from the experiments, it can be concluded that all of the factors listed do affect diffusion, and there may be many more than are unaccounted for. Through the osmosis experiment, it

  • How the Rate of Diffusion Changes When Increasing the Difference in Concentration

    417 Words  | 2 Pages

    How the Rate of Diffusion Changes When Increasing the Difference in Concentration Planning A: Research Question: How will the rate of diffusion be affected if I increase the difference in concentration? Hypothesis If we add more dye drops into the water beaker then it should take more time to spread/diffuse through the water because the molecules in the dye, when they are all together, are more organized then if they were spread apart. Since it is a

  • A Basic Understanding of Diffusion and Osmosis

    938 Words  | 4 Pages

    A Basic Understanding of Diffusion and Osmosis The purpose of this lab was to have a basic understanding about concepts diffusion and osmosis. In this lab we had dialysis tube as a cell membrane of cell, which lets small particles pass through it and we had test tube as tightly joined surface, which doesn’t let any particles pass through it. As a result we saw that small particles like glucose and iodine diffused through dialysis tube, but large particle like starch

  • grahams gas law

    1651 Words  | 7 Pages

    ENERGY/ GRAHAM’S LAW LAB Purpose: To observe how masses of atoms and molecules affect their rate of diffusion, and explain our observations in terms of mass, velocity, kinetic energy and temperature. Warm-up Question: 1.     What is the definition of temperature? Temperature is a measure of the average Kinetic Energy of the particles composing a material. 2.     What is the definition of diffusion? Diffusion is a spontaneous spreading

  • Proving that Osmosis and Diffusion Occur in Artificial Membranes by Using a Dialysis Tubing

    446 Words  | 2 Pages

    Proving that Osmosis and Diffusion Occur in Artificial Membranes by Using a Dialysis Tubing Hypothesis- Osmosis and diffusion will continue until equilibrium is reached and net movement will no longer occur. Solute size and concentration gradient across the selectively permeable membrane will effect diffusion. Materials- please refer to transport across semi-permeable membranes: diffusion and osmosis laboratory exercise hand out. Procedure: please refer to transport

  • The Case Of Diffusion And Osmosis

    951 Words  | 4 Pages

    little detail plays an enormous role. In the case of diffusion and osmosis, both are two important figures that deeply contribute to the successful progress of the body through equilibrium between two concentrations. Mutually, the factors assist the human body in maintaining homeostasis through similar aspects. The word itself contributes to its scientific meaning-the diffusion of a solvent, particle or substance to find stability. Diffusion in its sense is a part of passive transport, which requires