567 D. 0.195 6. At which x-value over the interval (0‚ 2] does the graph of f have a relative minimum? (refer to f ’ in #5) A. 1.938 B. 1.146 C. 0.368 D. 1.571 E. 0.567 7. At which x-coordinate below does the graph of f (for f ’ defined in #5) change concavity over the interval (0‚ 2]? A. 1.938 B. 1.146 C. 0.667 D. 1.571 E. 0.567 8. At which interval is the graph of f (for f ’ defined in #5) concave up over the interval (0‚ 0.8]? A
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Date: 03/20/2013 Lab: # Purpose of this lab: To test for the effects of temperature on catalase activity. Introduction: Enzymes are proteins that act as catalysts and help complex reactions to occur everywhere in life. Enzymes affect a chemical reaction by acting as a catalyst‚ which is to say‚ it speeds up the reaction. However‚ extreme ph and temperature hinders enzyme function. Optimal activity of an enzyme is the optimal environment that an enzyme requires to function
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Investigating the effect of pH on the activity of the enzyme catalase. Introduction Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution‚ slightly more viscous than water. It is a weak acid. It has strong oxidizing properties and is therefore a powerful bleaching agent that is mostly used for bleaching paper. Catalase is a common enzyme found in all living organisms. Its functions include the conversion of Hydrogen Peroxide‚ a powerful and potentially
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Adolf Hitler created Nazis and took aways Jews rights‚ deported them to ghettos and concentration camps‚ and were killed during World War II. The Nazis and Hitler tried to abolish all Jews and go against them because they thought the Jews were the reason for Germany’s crisis. Together the Nazis killed the "largest remaining Jewish population in Europe- the Jews of Hungary." In this documentary‚ it tells the story of the five Hungarian survivors. Many stories are similar to each other. Some of these
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because the molecules may have been moving slower. Part B: Title: The effect of salt concentration on osmosis in potato. Introduction: 1. The purpose of doing this lab is to observe the effects of various solute concentrations on osmosis in a potato. 2. During osmosis‚ water moves from the side of the membrane where they are most concentrated to the side where they are less concentrated. If the concentration is equal on both sides‚ there will be no movement. 3. I hypothesize
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The effect of salt concentration on grass growth Abstract Our aim was to test the effect of different salinities on the growth of plants which what we did was measured different amounts of salt dissolved into 2 litres of water‚ watered the plant once with the salt water then for 9 days with pure ware. I found with my investigation that the less the salt‚ the more the growth of the plant. My aim was achieved by measuring the 5 fastest geminating (out of 20) and to measure the differences in growth
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Concentration The Problem In many colleges over 8% of the students report problems concentrating on their studies. Most of these students blame outside distractions for their problems. Many research studies manipulating noise levels and distractions have found that such disturbances may increase‚ decrease‚ or not even affect concentration. These researchers have therefore concluded that distracters don’t cause concentration problems directly. It is the way the distracters are interpreted
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Osmosis coursework Aim: To investigate the effect of different concentration of a sugar solution on the amount of osmotic activity between the solution and pear pieces of a given size. Define osmosis: Osmosis is a net movement of water/ solution molecules from a region of high concentrated area to a region of lower concentrated area through a semi-permeable membrane which lets smaller molecules such as water through but does not allot bigger molecules like glucose to pass through. The molecules
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Measuring the effect of the concentration of caffeine on heartbeats. Caffeine is a stimulant which increases cardiac arrhythmia (improper heart rate) by increasing stress hormone (e.g. adrenaline) secretions. It also increases blood pressure which contributes to the blockage of receptors such as adenosine A1 and A2 receptors. The caffeine blocking receptors also blocks vasodilatory function‚ in which blood vessels become less dilated. Hence wise‚ caffeine is also known as a mild stimulant of the
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Effect of physical training on the capacity to secrete epinephrine M. Kjaer and H. Galbo +Author Affiliations 1. Department of Medical Physiology B‚ Panum Institute‚ University of Copenhagen‚ Denmark. Abstract Epinephrine responses to hypoglycemia and to identical relative work loads have been shown to be higher in endurance-trained athletes than in untrained subjects. To test the hypothesis that training increases the adrenal medullary secretory capacity‚ we studied the effects of
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