Practice Internal Assessment Report Christine Zhu St Pauls Grammar School 00296648 Biology HL Trial 1 & 2: 8/4/13 Trial 3 & 4: 10/4/13 Photo credits: Smarties by Andrew Dean‚ copyright Rebecca Douglas‚ retrieved 9/4/13 http://rebeccadouglas.photoshelter.com/image/I0000WDNZi_s2W4A Smarties Diffusion Experiment RESEARCH QUESTION How does changing the colour of smarties affect the extent of its passive diffusion? INTRODUCTION Passive diffusion‚ also known as simple diffusion‚ is used to
Premium Standard deviation Molecular diffusion Color
CELL TRANSPORT MECHANISMS AND PERMEABILITY Zack Johnson Human Anatomy & Physiology Lab 2101 Instructor: Alan Byboth‚ M.S. 10/4/12 Abstract- The cell is invaluable building block of all biological life on this planet‚ and one of its most important and unique characteristics is its ability to be selectively permeable with its plasma membrane. This outer membrane’s sophisticated mechanisms of transport through its bilayer are vital in maintaining homeostasis in the cell and the entire
Premium Diffusion Cell Osmosis
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
Name: Joie Vincent R. Dagohoy Date performed: 07-01-13 Student Number: 2009-33281 Date submitted: 07-08-13 Exercise 2 Formulation‚ Testing of Hypothesis‚ and Experimental Design I. Objectives: a. to define diffusion and demonstrate this process in gases b. to cite molecular weight and time as two factors affecting the rate of diffusion c. to formulate a hypothesis on the relationship of each of these factors on the rate of diffusion d. to conduct and experiment
Premium Diffusion Molecular diffusion Chemistry
The effect of molecular weight on the diffusion rates of Potassium permanganate (KMnO4)‚ Potassium dichromate(K2Cr2O7) and Methylene Blue^1 _________________ Group 3 Sec. X-1L February 6‚ 2012 ____________________ ABSTRACT The effect of molecular weight on the diffusion of substances were tested through the use of agar-water gel with three wells placed in a petri dish. Drops of three different substances namely: Potassium
Free Diffusion Molecular diffusion Ammonia
I’ve an important announcement to make. I have just spent the past few days looking of what may well be the worst climate paper yet produced. You heard that right – the absolute worst. This paper is so poor it makes Khilyuk and Chilingar (2006) look like Einstein’s special theory of relativity in comparison. So anyway‚ I decided to go all Climate Audit on this paper partly to get a handle on the solar influence on climate that denialists are always on about (there is actually some decent literature
Premium Solar variation Climate change Global warming
Name: Kyle Pockl Exercise 1: Cell Transport Mechanisms and Permeability: Activity 2: Simulated Facilitated Diffusion Lab Report Pre-lab Quiz Results You scored 50% by answering 2 out of 4 questions correctly. 1. Molecules need a carrier protein to help them move across a membrane because You correctly answered: d. they are lipid insoluble or they are too large. 2. Which of the following is true of facilitated diffusion? Your answer : b. Movement is active and against a concentration gradient. Correct
Premium Diffusion Protein Molecular diffusion
Cell Transport Mechanisms and Permeability 1 EXERCISE 1 OBJECTIVES 1. To define the following terms: differential permeability‚ passive and active processes of transport‚ diffusion (simple diffusion‚ facilitated dif- fusion‚ and osmosis)‚ solute pump‚ pinocytosis‚ and phagocytosis. 2. To describe the processes that account for the movement of sub- stances across the plasma membrane‚ and to indicate the driving force for each. 3. To determine which way substances will move passively
Premium Diffusion Osmosis Cell membrane
UNIVERSITI TUNKU ABDUL RAHMAN Faculty : Engineering & Science Unit Code : UEME3213 Course : Unit Title : Heat and Mass Transfer Year/ Semester : Year 3/ Semester 2 Lecturer : Session : Experiment 2: Gaseous Diffusion Coefficient Objective To determine gas diffusion coefficient of acetone Introduction The knowledge of physical and chemical properties of certain materials is important because very often process engineering deal with the transformation
Premium Liquid Diffusion Distillation
Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 09/20/11 page 1 Experiment Results Predict Question: Predict Question 1: The molecular weight of urea is 60.07. Do you think urea will diffuse through the 20 MWCO membrane? Your answer : c. No‚ not at all. Predict Question 2: Recall that glucose is a monosaccharide‚ albumin is a protein with 607 amino acids‚ and
Free Molecular diffusion Diffusion Osmosis