permeable membrane through a process of diffusion. The movement of a solute through this membrane is called dialysis . Diffusion is a form of passive transport. It is the movement of molecules from areas of higher concentration to those of lower concentration‚ until there is an even concentration. This movement is random because it is a result of kinetic energy. Diffusion is a slow process‚ but there are many factors that will affect it’s rate. The rate of diffusion will vary depending on the size of
Premium Diffusion Osmosis Chemistry
November 26‚ 2012 Basic Sciences 1 – News Essay New Surgical Technology: Adoption or Diffusion? This article raised an interesting subject: surgeons and patients seeking improved treatment often forget that a new technique is not necessarily a better one. Human body with its health problems remains the same but the surgical technology is always moving towards progress. People develop new surgical tools and new surgical procedures constantly. However‚ do we carefully test all these new tools
Premium Surgery Physician Hospital
Occurrence of Osmosis and Diffusion in Artificial and Living Cells | David Michael | March 24‚ 2011 | Partners: Fady Guirguis‚ Klaus Blandon‚ and Mauricio Rodriquez. | | * Table of Contents I. Abstract 3 II. Introduction 4 III. Materials and Methods 9 IV. Results 15 V. Discussion 18 VI. Works Cited 23 * Abstract This lab focuses on the understanding of osmosis and diffusion in a practical sense. It allows the conductor to see what factors affect diffusion and osmosis. This
Premium Osmosis Concentration Red blood cell
Diffusion and Osmosis of Solutes and Water Across a Membrane Brittany Bacallao Nova Southeastern University Abstract: This experiment gave a visual understanding of osmosis and diffusion. The first experiment proved that solutes would move down a concentration gradient if permeable to the selective membrane. The second experiment proved different solute concentrations affect the movement of water‚ depending on the solute concentration inside the cell. The purpose of this lab was to look for
Premium Osmosis Concentration Semipermeable membrane
Science and Mathematics Department of Biological Sciences In partial fulfillment of : BIOLOGY 101.1 (Scientific Paper on Diffusion) Submitted by : Diate‚ Kim P. (B.S.E Gen.Sci.1) Submitted to : Olive S. Anies‚ Ph.D ABSTRACT This scientific paper investigates my hypothesis that "Higher molecular weight produce faster diffusion". Diffusion is a process of equalization which involves movement of molecules from an area of high concentration to an area of low concentration
Premium Diffusion Molecular diffusion
The Effect of Molecular Weight on the Diffusion Rate of Substances Jesselyn P. Rodriguez Group 4 Section X-2L August 13‚ 2013 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ABSTRACT The effect of molecular weight on the rate of diffusion of substances is tested using two tests: the glass tube test and the agar-water gel test. In the glass tube test‚ two cotton balls were soaked
Free Molecular diffusion Diffusion Hydrochloric acid
THE RATE OF DIFFUSION OF SUBSTANCES PRINCESS AYNAH D. SANGGACALA Biology 101.1 Professor Christina A. Barazona September 15‚ 2014 THE EFFECTS OF MOLECULAR WEIGHT ON THE RATE OF DIFFUSION OF SUBSTANCES In partial fulfillment of the requirement For Biology 101.1 By Princess Aynah D. Sanggacala Professor Christina A. Barazona September 15‚ 2014 ABSTRACT The effect of molecular weight on the rate of diffusion was figured
Free Diffusion Molecular diffusion Potassium permanganate
prompting many societies to resolve it. An enduring issue that can be taken note of is cultural diffusion. Cultural diffusion depicts the spread of cultural practices‚ ideas‚ beliefs‚ and innovations‚ often through trade and migration. From medieval times up until now‚ this matter has left a great mark on society. The impact of cultural diffusion is an issue that has affected many people. Cultural diffusion has impacted people and societies around the world. The silk road facilitated the exchange of
Premium
The Effect of Varying Molecular Weights on the Rate of Diffusion of Substances August 22‚2012 ABSTRACT The effect of molecular weight on the rate of diffusion was verified by the 2 tests: the glass tube setup and the water agar-gel setup. In the glass tube setup‚ two cotton balls were soaked in the solutions of hydrochloric acid (HCl) and ammonium hydroxide (NH4OH) and were simultaneously placed on both ends of the tubing.NH4OH had a lighter molecular weight of 35 g/mole which diffused
Premium Ammonia Hydrochloric acid Molecular diffusion
ABSTRACT The effect of molecular weight on the rate of diffusion was measured using two tests namely: the glass tube test and the agar-water test. The set-up of the glass tube test used two cotton balls of the same size. One cotton ball is moistened with hydrochloric acid (HCl) and the other one is moistened with ammonium hydroxide (NH4OH). The two cotton balls were inserted in both ends of the glass tube. NH4OH which has a lighter molecular weight (35.0459 g/mole) diffused with a faster rate (dave=20
Premium Ammonia Molecular diffusion