BEETROOT PIGMENTS - and membranes – These pigments are betalain pigments (not‚ as often thought‚ anthocyanins)‚ which they replace in some organisms. They are named after the Beet family of plants (Beta) but are also found in fungi (Fly Agaric - the red‚ spotted one!). In petals they presumably attract pollinating insects and may be present in seeds/fruits to encourage birds to eat them and so disperse the seeds. Man has selected for colour in beetroot‚ both because
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LAB REPORT 4 DETERMINING AN EQUILIBRIUM CONSTANT CAUSION 1. Potassium thiocyanate (KSCN) is hazardous 2. Wear protective material before performing the experiment. INTRODUCTION This experiment outlines the techniques necessary to determine the equilibrium constant for the formation of an iron(III) thiocyanate complex ion (FeSCN2+) from Fe3+ and SCN- . The quantitative preparation of several solutions and subsequent measurement of the solution absorbance
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The Kinetics of the acid-catalyzed iodination of propanone Raw Data: Solution A:Propanone 2M Solution B: Iodine 0.005M Solution C: Sulfuric acid 1M Solution D: Distilled water Table 1 Experiment Volume of solution A ±0.05 (cm3) Volume of solution B ±0.05 (cm3) Volume of solution C ±0.05 (cm3) Volume of solution D ±0.05 (cm3) Total Volume ±0.2 (cm3) 1 2 2 2 4 10 2 4 2 2 2 10 3 6 2 2 0 10 4 2 1 2 5 10 5 2 0.5 2 5.5 10 6 2 2 4 2 10 7 2 2 6 0 10 Table 2 Experiment Time for yellow color to disappear
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1. Introduction Plumbago zeylanica L. belonging to the family Plumbaginaceae is an important plant of medicinal value. In the Arabian Peninsula‚ it is mainly distributed over Oman‚ Yemen and the Southwestern region of Saudi Arabia. The use of the roots of P. zeylanica for treating skin problems has been recorded by early Muslim physicians. P. zeylanica is greatly valued in Ayurveda for treatment of cough‚ asthma and gastrointestinal disorders. In Sushrutha Samhitha it has been described as antiseptic
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Boiler Water Tests A BRIEF DESCRIPTION OF THEIR MEANING AND PURPOSE Expression of Test Results - PPM (parts per million) In water treatment‚ results are most commonly expressed in parts per million (ppm). Other terms commonly encountered are milligrams per liter (mg/l) and grains per gallon (gpg). For practical purposes‚ 1 ppm = 1 mg/l and 1 gpg = 17.1 ppm. The term “ppm” is unitless; that is‚ as long as the same units are used on both sides of the relationship‚ any units can be used. For example
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Tiltle: What was happened to the bananas? Objective: To compare the amount of reducing sugars and starch in yellow and green bananas. Introduction: Bananas are green in colour and taste flat but after they are harvested and stored for some days‚ they will turn yellow from green and become sweet. Hypothesis: The green banana tasted plain because it contained large amount of starch‚ while the yellow banana tasted sweet since it contained large amount of reducing sugars. Biological principles:
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Abstract Arduino is the open source hardware platforms using libraries that have the capability to rapidly and reasonably prototype custom hardware solutions to ordinary library issues. Authors illustrates environment of Arduino‚ what it is‚ how it was and what it does used at the James A. Gibson Library at Brock University to generate a portable production of barcode-scanning utility to use statistics collection including a prototype for a service desk statistics tabulation program hardware interface
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Design Experiment: Enzyme Inhibitors. Research question: What is the effect of adding lead nitrate solution on the activity of amylase enzyme? Aim: To test the effect of adding nitrate solution on the activity of amylase. Background Information: Inhibitors are molecules which repress or prevent another molecule from engaging in a reaction. They are substances that attach themselves onto an enzyme and reduce or prevent the enzyme’s ability to catalyse reactions. Competitive Inhibitors are inhibitors
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Abstract Enzyme catalysis was observed in order to analyze how changes in temperature‚ pH‚ enzyme concentration‚ and substrate concentration affected an enzyme-catalyzed reaction. This experiment analyzed the rate of enzyme-catalyzed reactions and observed the correlation between catalase activity and products formed. It was found out that the rate of an enzyme-catalyzed reaction starts off rapidly‚ decreases‚ and levels off or completely stops‚ and can be further affected by environmental factors
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2. World Health Organization (2006)‚ Guidelines on Standard Operating Procedures for CLINICAL CHEMISTRY [online]. Available: http://w3.whosea.org/EN/Section10/Section17/Section53/Section481_1765.htm [17 April 2006] 3. UK Chemistry (2000)‚ Flame Photometric Determination of Sodium [online]. Available: http://www.chem.uky.edu/courses/che226/labs/flame_photometry.html [19 April 2006] 4. Wikimedia Foundation‚ Inc (2006)‚ Quantum Chemistry [online]. Available: http://en.wikipedia.org/wiki/Quantum_chemistry
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