The Effects of Varying pH on Enzyme Activity A lab was conducted to test different pH balances on an enzyme. Introduction: Enzymes are protein catalysts that speed up a chemical reaction without being consumed in the process. Enzymes are three-dimensional structures that consist of one or more polypeptide chains. The polypeptide chains form an active site (where a substrate will fit into). Enzyme molecules are folded into a very specific shape held together by the different forces of attraction
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William B. Heard Rigid Body Mechanics William B. Heard Rigid Body Mechanics Mathematics‚ Physics and Applications WILEY-VCH Verlag GmbH & Co. KGaA The Author William B. Heard Alexandria‚ VA USA For a Solutions Manual‚ lecturers should contact the editorial department at physics@wiley-vch.de‚ stating their affiliation and the course in which they wish to use the book All books published by Wiley-VCH are carefully produced. Nevertheless‚ authors‚ editors‚ and publisher do not warrant the information
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Thermochemistry Thermochemistry is the study of heat evolved and absorbed during the chemical reactions. The system is the interest of the universe; the surroundings are the rest of the universe in which the exchange of the energy with the system takes place. Both‚ the system and the surroundings make up the universe. Heat flow is the transfer of heat from a warm place to a cooler one. System to surroundings: Surroundings to system:
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Investigating pH Aim: To demonstrate dissolved carbon dioxide changing the ph level of substances. Materials: * 2 beakers * 2 straws * Stop watch * Distilled water * Lime water * Litmus Paper Method: 1. Pour 100ml of Distilled water into the first beaker‚ and label said beaker. 2. Pour 100ml of Lime water into the second‚ also Label beaker. 3. Test the two liquids with litmus paper and note the ph level‚ before any carbon dioxide has been introduced. 4. Place a straw
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2.3 Results 2.3.1 The Effect of O. lybicus Population on Palms Temperature Over Time Temperature differences between different O. lybicus population levels were not significant in leaves and fronds (P > 0.05). However‚ high significance difference in temperature were occurred over time (P < 0.001) in both parts Figure 1 and 2. The temperature at the highest population (1000 insects) were the highest at the first three weeks‚ before it starts declining gradually (figures 14-15). Chlorophyll measurements
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Effects of hyperventilation on CO2 and pH levels Alidrin Armandico Physiology Lab 142 Egle Ortega Aprill 25‚ 2014 Abstract The aim of this experiment was to analyze how pH and carbon dioxide (CO2) levels in the blood change during hyperventilation and how the renal system compensates for this condition. Hyperventilation decreases CO2‚ increases pH‚ and lowers H+ levels which then results to respiratory alkalosis. In the experiment‚ we used the PhysioEx 8.0 software to simulate hyperventilation
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CAT - Measuring the pH of common household substances 1. Predict the pH value of substances & estimate the pH value by using the universal indicator. 2. Use the indicator to identify acidic‚ basic‚ and neutral substances found in any home 3. Classify household items as acids and bases 4. Collect organise and analyse results in tables and graphs (if necessary) 5. Analyse results and explain the reason the substances have the pH obtained. Aim – To use a universal
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LABORATORY REPORT TITLE : MEASURING pH LEVELS AND WATER ACTIVITY OF FOODS NAME: MATRIC NO: GROUP: 2 DATE OF EXPERIMENTAL WORK: 13 MARCH 2013 DATE OF SUBMISSION: 20 MARCH 2013 TITLE: MEASURING pH LEVELS AND WATER ACTIVITY OF FOODS ACTIVITY 1 Introduction : This experiment was performed to investigate the pH levels of different types of food products. The pH of a solution can be determined experimentally in several ways. The pH scale is the range of pH values from 0 to 14. The paper that
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Activity A: Body temperature Get the Gizmo ready: • If necessary‚ click Reset ( ). Question: What factors increase or decrease body temperature? 1. Observe: With the Air temp. at 0 °C (32 °F) and Body temp. at 37 °C (99 °F)‚ click Play ( ). After one simulated hour (does not have to be exact)‚ click Pause ( ). What is the body temperature after one hour? ____________________________________ 2. Gather data: Fill in the first line of the data table below. Then‚ use the same
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bio gas Co-digestion of Biomass for Methane Production: Recent Research Achievements Wei Wu ABSTRACT Anaerobic digestion (AD) is a process by which microorganisms break down biodegradable material in the absence of oxygen. Anaerobic digestion can be used to treat various organic wastes and recover bio-energy in the form of biogas‚ which consists mainly of CH4 and CO2. A great option for improving yields of anaerobic digestion of solid wastes is the co-digestion of multiple substrates. Numerous
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