Practical to Investigate Diffusion and Osmosis Collect the following equipment: 1x beaker 1x length visking tubing 1x pipette 1x pair safety glasses Instructions – always wear safety glasses! 1. Fill your beaker ¾ full with water 2. Tie a knot in one end of your visking tubing 3. Using your pipette‚ transfer some concentrated sugar solution to the inside of the visking tubing‚ leaving enough space to tie a knot in the open end 4. Add a few drops of red food colouring to the inside of the visking
Premium Diffusion 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 the molecular weight to the rate of diffusion Based on the experiments‚ sd f f f f s wrefwe fwe rfwjv rwefhnw fwer fwe fwef fwe fwe fwe fwef wef w fwe fwe From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Sucrose is the organic compound commonly known as table sugar and sometimes called saccharose. This white‚ odorless‚ crystalline powder has a pleasing‚ sweet taste. It is best known for its role in human nutrition. The molecule is a disaccharide derived from glucose
Premium Disaccharide Sucrose Fructose
Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
Premium Mass Force Weight
The Effect of Different Molar Mass on the Diffusion on Substances Lunar-maius A. Gaerlan Group 2 Sec. X – 9l August 15‚ 2012 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using agar-water gel test. The agar-water gel set up was composed of a petri dish of agar-water gel containing three wells. Drops of potassium permanganate (KMnO4)‚ potassium dichromate (K2Cr2O7) and methylene blue(C16H18N3SCl) were simultaneously introduced to each well. Methylene blue
Premium Chemical reaction Chemistry Temperature
mythelin blue affects the rate of diffusion through agar jelly. Hypothesis The diffusion of mythelin blue is directly proportional to its concentration‚ hence as the concentration increases; the rate of diffusion increases too. Controlled Variables Time time was kept constant while testing the diffusion spread of mythelin blue with each concentration. Temperature the experiment was undertaken in room temperature as change in temperature can affect the rate of diffusion‚ as a higher/lower temperature
Premium Diffusion Molecular diffusion Measurement
of dollars. Most of these resources‚ however‚ did not go into the theory of designing a bomb‚ as design was a relatively small part of the budget; rather‚ the money and manpower were needed to produce weapons-grade plutonium and uranium. Gaseous diffusion was‚ at the time‚ the most efficient way of separating the 235 U and 92 238 U isotopes.1 92 The question of why scientists entertained the idea of a uranium bomb at all is an intriguing one. Bohr had already demonstrated that uranium‚ when undergoing
Premium Uranium Nuclear power Nuclear weapon
Transport of Solute in Solvent through Osmosis or Diffusion Due to Different Concentration Gradients Passing Through a Semi-permeable Membrane between Cell and Cells Environment Bio 101 Objective: The objective is to simulate passive transport: diffusion of solutes and osmosis of water through a semipermeable membrane (dialysis tubing). The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration in the attempt to reach homeostasis
Premium Osmosis Chemistry Diffusion
The Effect of Molecular Weight on the Diffusion Rate in Substances Nadjah B. Hadji Amer Gladys A. Oliveros Rochelle R. Yaῆez Jan Remon B. Caliguid Group 2- Sec. W78-1 August 14‚ 2013 A scientific paper submitted in partial fulfilment of requirements in Biology 101.1 under Prof. Kimverly Hazel Coronel‚ 1st sem‚ 2013-2014 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using the agar-water gel test. The agar-water gel set up was composed of a six petri
Premium Petri dish Agar plate Diffusion
of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal
Premium Eukaryote Photosynthesis Cell