The Effect of pH on Enzymatic Reaction Rate Abstract Enzymes are affected by changes in pH. The most favorable pH value— the point where the enzyme is most active—is known as the optimum pH. This experiment was conducted to determine the effect of pH reaction rate on an enzyme‚ catalase‚ from yeast. The experimental results indicate that the catalase worked best at a neutral pH level of seven (7). Introduction An enzyme is a protein molecule that serves as a catalyst. “The basic function of
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causes of turnover‚ negative effects of turnover‚ and offers suggestions for curtailing the rate of turnover in the industry. The problem of this article is that employee turnover continues to plague the leisure‚ tourism and hospitality industry as keeping and retaining employees become a huge issue. A common estimate is that employee turnover costs 1.5 times the departing employee’s income. Unemployment rate rose from 7.6 to 8.1%‚ the Bureau of Labor Statistics of the U.S. Department of Labor reported
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Case 3-1: Rate My Professor 1. What assumptions can you make about managerial decision making‚ as it relates to the Millennial generation‚ from the case? From this case I can assume that when it comes to making managerial decision‚ the Millennial generation would prefer an easy way out. They are technologically savvy‚ and would prefer to see what decisions others have already made and will make those same decisions using number or star ratings. They are always connected to the internet and they
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The Environmental Lapse Rate Exercise A (Total = 12 marks) The heights of the temperature °c measurements are given in meters (m) Convert each of these to the appropriate height in Hectopascals (hPa): Height (m) Temperature°c Hectopacals (hPa) 0 22 1000 1500 18 850 3000 13 700 4000 7 600 5000 -15 500 6000 -22 400 7000 -36 300 8000 -41 200 8500 -49 150 9000 -58 100 a) Plot a simple graph to display these data (3 marks): see attached b) what does the graph tell you about
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Part I: Pulse Rate Take your pulse at the wrist‚ as described on the Work Out tab of 4.02‚ and record it below. Your count for 30 seconds ___ x 2 = ___ bpmDay 1 _____Day 2 _____Day 3 _____Total _____ divide by 3 = _____ This is your Resting Heart RateObtain your Maximum Heart Rate (MHR) by subtracting your age from 220. Example 220 – 21 = 199 1. Subtract your resting heart rate (RHR) that you calculated in Part II above from the maximum heart rate (MHR) that you just determined in Step
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Purpose: The purpose of the ‘Rates of Reactions’ lab is to learn how to plan an investigative lab without outside help and to learn about the ‘Rates of Reactions’. This lab will require students to take responsibility for their own learning and use their prior knowledge to aid in the completion of this lab. In the lab prepared below‚ students will be learning about Rates of Reaction with varying concentrations of Alka-Seltzer with water. Hypothesis: I believe that the more water added to the canister
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1. HOW IS UNEMPLOYMENT MEASURED? Based on my research (Abs.gov.au‚ 2015)‚ the Australian Labour Market Statistics (July 2014); the Australian Bureau of Statistics (ABS) measures the unemployment rate in Australia. The data came and it is published monthly from the Labour Force Survey (LFS) in Labour Force‚ Australia (cat. no. 6202.0). And are described by many attributes such as age; sex; marital status; geography; country of birth duration of job search. An individual is said to be employed if he
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years from 2005 to 2007 teen birth rates started to increase due to women neglecting contraception usage because of the expensive prices they couldn’t afford. According to the chart provided by the Censes for Disease Control and Prevention website‚ teen pregnancies then dropped immediately in 2010 (Centers for Disease Control and Prevention). On March 23 of the year 2010‚ the Patient Protection and Affordable Care Act was signed into law by President Obama (EHealth Insurance). In that same year that
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Exchange rate movement has been an important subject of macroeconomic analysis and market surveillance. Despite its importance‚ forecasting the exchange rate level has been a challenge for academics and market practitioners since the collapse of the Bretton Woods system. Empirical results from many of the exchange rate forecasting models in the literature have not yielded satisfactory results. This paper is constructed for the purpose of comparing the forecast performance of various competing models
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number of registered voters. There are two ways of calculating that determines voter turnout. The reported turnout (Voting-age Population or VAP) is the result of the population who are aged 18 and older. This turnout rate includes people that are ineligible to vote which include felons and non-citizens. The more accurate measure of voter turnout is the Voting-eligible population (VEP). This turnout rate subtracts the ineligible population. The VEP turnout rate is normally higher than that of the VAP
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