UNIT 1: Lesson 1 Key Questions: 1. Magnesium consists of 12 electrons; 2 + indicates a loss of 2 electrons; therefore‚ it now has 10 electrons. 2. The isotope would not be useful for dating bones that are over a million years old because carbon-14 decay at a constant rate‚ with a half-life of 5730 years. Therefore‚ after 40‚ 000 years‚ les than 1% of the carbon-14 is left in the tissue. As a result‚ there is not enough of the isotope in the tissues to determine the age of the bones. 3. The four
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this division we can see the Supreme Court as well. Justice Scalia in the case of Lucas v. South Carolina Coastal Council quotes Lord Coke‚ who said “For what is land but the profits thereof?” Whereas Justice‚ Blackmun endorsed the latter view in Sierra Club v. Morton‚ by quoting John Donne: “No man is an Island‚ entire of itself; every man is a piece of the Continent” (Jeunymere p. 394) in the case of Lucas v. SCCC Lucas purchased two separate parcels of land
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products. The “energy barrier” represents the activation energy of a chemical reaction. In this practical the activation energy of hydrolysis of p-nitrophenyl phosphate will be determined in the presence of the enzyme alkaline phosphatase. REAGENTS * A suitably diluted solution of alkaline phosphatase * 10 nM p-nitrophenyl phosphatase * 150 μM p-nitrophenyl phosphate * 0.1 M bicarbonate buffer pH 10.0 * 0.05 M NAOH Method a) PREPARATION OF CALIBRATION CURVE In order
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2 Elements Table 1 REAGENTS 0.1M SOLUTIONS OF GROUP 2 CATIONS (AS NITRATES) Mg2+ Ca2+ Sr2+ Ba2+ Unknown D 0.02M K2CrO4 no no Light ppt Light ppt(yellow) No 0.1M (NH4)2C2O4 no Heavy ppt(white) Heavy ppt(white) Light ppt(white) Heavy ppt(white) 0.1M Na2SO4 no no Light ppt Light ppt(white) no 0.1M NaOH Light ppt Light ppt no Light ppt(white) Light ppt(white) Part II- Qualitative Analysis of Selected Anions Table 2 REAGENTS 0.1M SOLUTIONS OF GROUP
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Introduction: The purpose of this lab is to use staining techniques and biochemical testing to identify an unknown bacteria using Bergey’s manual. Bergey’s manual of Systematic Bacteriology is a dichotomous key primarily used to identify a bacterial species. Biochemical tests are used to differentiate different species of bacteria. These tests are effective in determining the characteristics of the microbe being tested. Such characteristics include citrate utilization‚ gelatin hydrolysis‚ nitrate
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between Amy and Lucas‚ and the plot twist shown at the end of the story. She also used the characters speech to foreshadow the upcoming events in the story shown in the few dialogues of Lucas such as‚ “Very dramatic‚ Lady Macbeth.”(Ellis‚ 6) and “Hey fink-face! What are you doing out there? Demolition Derby?”(Ellis‚ 7) and also “Amy? You’re just kidding‚ aren’t you? That was pretty good. You know if you weren’t so funny looking you could
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0.0 Sustainability as a Change Management Challenge: Floors ‘R’ World Case 0.1 Question 1: The application of the three change management theories (The Individual Perspective School‚ the Group Dynamics School‚ the Open Systems School) for the Floors ‘R’ World case and the evaluation of the different alternative strategies the organization’s management could employ to drive change and motivate employees. Question 2: Which of the three schools discussed in Question 1 best explains the situation
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out of 6 questions correctly. 1. The substrate for amylase is You correctly answered: e. starch and carbohydrate. 2. Which of the following is true of enzymes? You correctly answered: c. Their activity can be affected by temperature and pH. 3. The reagent IKI tests for the presence of You correctly answered: a. starch. 4. Which of the following is not true of controls? You correctly answered: d. A negative result with a positive control is required to validate the test 5. Which of the following is
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EFFECT OF pH LEVEL ON THE ENZYME ACTIVITY OF INVERTASE John Dale Cruz‚ Michael Ray Dela Cruz‚ Karen Angelica Domalaon‚ Abegail Dulay‚ Shirley Ann Felipe Group 5 2C Medical Technology Biochemistry Laboratory ABSTRACT Invertase is a type of enzyme‚ a natural catalytic agent for biochemical reactions‚ can be obtained in Baker’s Yeast. Determination of the effect of pH on invertase activity is the primary objective of the experiment. Dinitrosalicyclic acid (DNS) Assay method is utilized to monitor
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are specific in their match of substrates they will breakdown – similar to a key and its lock. Since amylase is the only enzyme that breaks down starch‚ the procedure was effective and gave clear results of sugar produced. With help from the stain reagent benzoic acid – I visibly saw the production of sugar molecules. However‚ I was only able to determine which of the Tubes experimented had the most or least sugar present‚ by color intensity. By operating a spectrophotometer‚ I was able to create a
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