Amylopectin The absorbance value(x) read from cuvette containing starch and water represents the total amount of starch-iodine complex. The absorbance value(y) read from cuvette containing starch‚ water and α-amylase at the respective temperature or pH represents the amount of starch-iodine complex which is left after the enzyme has hydrolyzed the starch.In order to get the amount of product;P (maltose and glucose) formed‚ need to subtract the (y) value from the (x) value.
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the motion. For task 1‚ we just became familiar with DataStudio and learned how to use it to time each “swing” of the ball on the end of the pendulum. Then‚ in task 2‚ using the materials provided we decided that the variables that would have effect on the period are the length of the string‚ the angle the ball was released‚ and the size of the ball‚ which was either the wooden ball or the steel ball. Since we were measuring the length of the string vs. the mean time of each swing of the pendulum
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kJ/mol 1st I.E. (Cu) = +750 kJ/mol 2nd I.E. (Cu) = +2000 kJ/mol ∆Hat (Cu) = +339.2 kJ/mol 1st E.A. (O) = -141.4 kJ/mol 2nd E.A. (O) = +790.8 kJ/mol 3. 100 cm3 of 0.5 mol/dm3 ethanoic acid were mixed with 100cm3 of 0.5 mol/dm3 NaOH. The temperature rose from 18.2°C to 21.45°C. Calculate the Std. Enthalpy of Neutralisation in kJ/mol . c= 4.2 JK-1g-1 4. 50 cm3 of 0.4mol/dm3 NaOH required 20cm3 of 0.5mol/dm3 H2SO4 for neutralisation. The temp. rise was 3.9°C. Calculate ∆Hneut. 5. Assume that
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Science IA Rough Draft The Effect of Temperature on The Activity of The Enzyme Catalase Introductions: Enzmyes are proteins that catalyze chemical reactions. All living things have catalase present in them. Catalase is a common HYPERLINK "http://en.wikipedia.org/wiki/Enzyme" enzyme found in nearly all living organisms that are exposed to oxygen‚ where it HYPERLINK "http://en.wikipedia.org/wiki/Catalyst" catalyzes the decomposition of HYPERLINK "http://en.wikipedia.org/wiki/Hydrogen_peroxide"
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Typical guns expel microwave waves off to the atmosphere while the gun is directed to hit towards a target From there‚ an object moving by who hits it sends the waves back with its modified frequency caused by the Doppler Effect (Georgia State University‚ “Police Radar”). This effect essentially changes the receiving waves from the radar because it bounces back from an object with changing distance from the radar by having speed. These variables then cause disturbances in the waves in which it
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LAB WRITE-UP NAME: Gabriel-Ohanu Emmanuel PARTNER: Baptiste Gilman TITLE: Graph Matching PURPOSE: The purpose of the experiment was to analyze the motion of a student walking along a straight line in front of the motion detector moving back and forward with different speed trying to match the graph provided. To also understand and interpret graphs of distance vs time and velocity vs time. To also know what the slopes of the each graph represent which tells how far the student travelled
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M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M This markscheme is confidential and for the exclusive use of exa miners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. -3- M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M For the attention of all examiners: if you are uncertain about the content/accuracy of a ca ndidate’s work please contact your team leader. 1. (a) W hat does Source B suggest about the views of
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Introduction: The purpose of this experiment is to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle‚ particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ------------ Lactate + NAD The reaction above can move in both directions‚
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Investigation Into Temperature Sensors Introduction In this project I will be investigating how it is possible to use a temperature sensor to keep a greenhouse from changing temperature too much. This is intended to help plants live and grow in their optimum temperature. This will create a perfect temperature for the enzymes in the plants to work in‚ and therefore resulting in a maximum growth/production rate. This could be useful for gardeners who wish to grow plants as quickly as possible
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DELTA UNIVERSITY FOR SCIENCE AND TECHNOLOGY FACULTY OF PHARMACY Practical Physics I Fall 2012 [PRACTICAL PHYSICS I] Contents Fall 2012 (1) Fine Measurement Apparatuses --------------------------------------------------------------------------- 2 (2) Determination of the Mechanical Equivalent of Heat (Joule’s Law) by Electrical Method 12 (3) Determination of the Melting Point of a Solid Material ------------------------------------------ 15 (4) Determination of the Specific Gravity
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