62 Iodine test for starch Amount of starch remaining Enzyme activity level Dark blue-black All None (0) Blue Most Low (1) Light brown Some Moderate (2) Gold None High (3) Part 1: Effect of Enzyme Concentration 1. Label five test tubes 1-5. Place 4 mL of 1 % starch in each of the first four test tubes. Place 4 mL of amylase solution in the fifth tube. Place all of the tubes in the 37°C water bath for 5 minutes. Obtain 5 clean droppers and label them 1-5. (To avoid contamination of these solutions
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31) QUALITY OF DRIED FOODS AND DETERIORATIVE REACTIONS DURING DRYING Consumer demand has increased for processed products that keep more of their original characteristics. In industrial terms‚ this requires the development of operations that minimize the adverse effects of processing. The effect of food processing on finished product quality ultimately determines the usefulness and commercial viability of that unit process operation. In the particular case of food drying this indicates that loss
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analyze the effects of pH‚ enzyme concentration‚ and temperature on the catalytic rate on enzyme ALP. The initial experiment was done to approximate the optimum pH for the activity of the enzyme. The hypothesis was that alkaline phosphatase activity will be critically affected by pH effects. The hypothesis was valid because the data shows that the pH values for the acidic‚ basic‚ and neutral tubes increased over time‚ absorbing at similar rates. The basic tube had the highest rate of absorbance while the
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1. A) I would expect the active site of nylonase to consist mainly of polar amino acids with a few nonpolar amino acids as well because the substrate for nylonase is polar overall‚ but has many nonpolar bonds. What makes me think that the nylonase enzyme is polar is that the substrate that would bind to the active site of nylonase has extreme polarity between carbon and oxygen‚ and between hydrogen and nitrogen due to their differences in electronegativity’s‚ but it still has the nonpolar bonds between
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Enzyme Lab Report Introduction: Enzymes are proteins that enable chemical reactions. In the enzyme lab‚ the effects of concentration‚ temperature and pH on the functionality of the enzyme catalase. The enzyme lab was also about measuring reactions by capturing the oxygen that was generated by the reaction. Materials and Methods: Experiment 1‚ 2‚ & 3 Experiment 1 examined the effects of concentration on catalase activity. Experiment 2 examined the effects of concentration in temperature
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Enzyme Catalysis Introduction: Enzymes are produced by living organisms as proteins. These enzymes perform as catalysts to bring about a chemical reaction. In fact‚ most reactions are catalyzed by enzymes during reactions in the cell or in the human body. A catalyst that enzymes pose ad are by definition substances that are capable of initiating or speeding up a chemical reaction. Catalyst are not a necessity during a chemical reaction‚ they are just used to speed up a chemical reaction. This event
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Professor Shannan Lewis-Blair‚ M.S. Submitted By: Kara Hackett‚ Ryan Ritchie & Angie Wagoner Kara_Hackett@pba.edu‚ Ryan_Ritchie@pba.edu & Angie_Wagoner@pba.edu Date of Submission: September 10th‚ 2013 Title of Assignment: Barriers to Concentration CERTIFICATION OF AUTHORSHIP: I certify that I am the author of this paper. This paper was prepared by me specifically for this course. I have also cited any sources from which I used data‚ ideas‚ or words‚ either quoted directly or paraphrased
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CHAPTER 1 INTRODUCTION A. Background of the Study Concentration has been defined as the ability to direct one’s thinking in whatever direction one would intend. Concentration plays vital roles in doing well in studies. A student has to work really hard and concentrate firmly to get concepts well in mind. All students have the ability to concentrate some of the time. But at other times students’ thoughts are scattered‚ and their minds race from one thing to another. They don’t have the ability to
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The Power of Concentration By Remez Sasson When I was a child‚ I saw how a magnifying glass could burn a piece of paper‚ when the rays of the sun were focused through it. The fire could start only when the sun’s rays were concentrated to a small point. When the magnifying glass was moved too far away or too close to the paper‚ the rays were not focused enough and nothing happened. This experience describes vividly the power of concentration. This power can be described as focused attention. It
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Concentration Camps in Vienna The Auschwitz concentration camp complex was the largest of its kind established by the Nazi regime. It included three main camps‚ all of which deployed incarcerated prisoners at forced labor. One of them also functioned for an extended period as a killing center. The camps were located approximately 37 miles west of Krakow‚ near the prewar German-Polish border in Upper Silesia‚ an area that Nazi Germany annexed in 1939 after invading and conquering Poland. The SS authorities
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