Research Question How will the addition of different pH buffers to amylase affect the rate of starch digestion measured using starch and iodine? Introduction Amylase is an enzyme found in human saliva and pancreas. It is the digestive enzyme that is needed to breakdown starch molecules. Amylase must be kept at certain conditions to function at its optimum level. This experiment will explore the effect of pH (1‚ 4‚ 7‚ 10‚ and 14) on the function of amylase by using starch and iodine. Usually
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Determination of presence of protein in a variety of food substances by the use of Biuret Reagent Biol. 1040 Section 1005 Introduction The human body consumes carbohydrates‚ lipids‚ and proteins each day by eating a variety of foods. These foods are required for energy and human growth. Proteins are a diverse group of macromolecules with many different functions (Mbuthia‚ 2012). Many are structural components of bone‚ muscle‚ hair‚ tissue‚ etc. Others are enzymes that speed up cellular
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Page 1/3 09/2010 SE 110.22 Forces in an Overdeterminate Truss The picture shows SE 110.22 in a frame similar to SE 112. * Comparison of forces in statically determinate and overdeterminate trusses1 * Bars with strain gauge full bridges to measure bar force1 * Computerised evaluation of experiments Technical Description Overdeterminate trusses are employed where overdimensioning is purposely required because safety must be maintained in the event of failure of an element‚ such as in aircraft
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Purpose To check whether mass is gained or lost during a Chemical reaction. Hypothesis Equipments and Materials • Eye protection • Test tube • 250 ml Erlenmeyer flask and stopper • Weight Balance • Antacid tablet • Dilute solutions of o Sodium Hydroxide‚ NaOH(aq) o Iron(III) Nitrate‚ Fe(NO3)3 • Funnel • Cylinder Procedures 1. Put eye protection on for safety purposes. Part A: Reaction between Iron(III) Nitrate and Sodium Hydroxide. 2. Take two cylinders and fill one (full)
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Purpose: To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders
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Allowing diet sodas in schools has always been a touchy subject for Americans. Many think it’s perfectly fine‚ while others don’t. I believe no type of soda‚ diet‚ or regular should be allowed in schools. Research shows that caffeine raises blood sugar levels. When those blood sugar levels rise‚ there is a connection between concentration levels and students. I guess that can be considered a good thing on testing days. To go along with that‚ diet sodas are known for having lower calories which
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reactions. We need to talk about baking powder and baking soda… and you can totally copy my homework if you need to. It’s cool. The difference between baking soda and baking powder: Baking soda and baking powder are both odorless white powders that work their magic in our cakes. Though they’re both white powders‚ the two are certainly not interchangeable. Let’s talk about the facts behind these baking essentials. Baking soda is also known as sodium bicarbonate. I told you we were talking
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concentration‚ and the temperature. Lastly‚ the items used in this particular experiment were baking soda to provide CO2‚ a light to excite the electrons in stage 1‚ distilled
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sale which we are expecting to sell all of them in the school farmer market. Conclusion: The cookies that we made during each lab showed most of the benefits and disadvantages of making our own cookies compare buying commercial cookies (saving money‚ healthier version‚ taste‚ and texture). I believe‚ I can use all these experiences that I gained during each cookies labs at home too. Also‚ it will be helpful and useful in food service. For instance‚ as a register dietitian‚ I can approach any desserts
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The Effect of Concentration on Absorbance Background Information The purpose of the “Determining Solution ‘Concentration’ Using A Spectrophotometer” lab was to use a spectrophotometer to find the relationship of concentration and absorbance obeying the Beer-Lambert law‚ which states concentration and absorbance are directly related‚ to then further determine the concentration of three unknown solutions. With the assumption that the solutions obey the Beer-Lambert law it is predicted that as concentration
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