Melanie McGivern. Access to nursing Group 2 Effects of pH on enzyme activity Contents Front cover Aim Introduction Hypothesis Prediction Variables Materials Methods Results Discussion Conclusion Bibliography Aim The aim of the experiment is to see the enzyme amylase catalyse starch in a chemical reaction. | | Introduction Enzymes are proteins. They act as catalysts‚ allowing chemical reactions to take
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affect the browning time of a banana? “ The hypothesis was “that the lower the pH the less brown a banana will turn.”. The experimental group was bananas placed in liquids with varying pH levels : lemon juice‚ lime juice‚ vinegar‚ baking soda water‚ alkaline water‚ and distilled water. This experiment’s dependent variable is the number of spots each banana has after two hours of sitting out.The independent variable is the banana. The control group was bananas laid on a plate. The last variable is the
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is used to describe the degree of acidity or alkalinity in the acid mantle of the skin or in a product. It is measured on a scale ranging from 0-14. The centre of the scale‚ 7‚ is neutrality (neither acid nor alkaline). A reading above 7 indicates that the substance being measured is alkaline; below 7‚ acid. As far as the skin is concerned‚ a normal pH (or normal Acid Mantle) is in the range of 4.2 to 5.6. It will vary from one part of the body to another and generally speaking‚ the pH of a man’s
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Edison rose from humble beginnings to work as an inventor of major technology. Setting up a lab in Menlo Park‚ some of the products he developed included the telegraph‚ phonograph‚ the first commercially practical incandescent electric light bulb‚ alkaline storage batteries and Kinetograph (a camera for motion pictures he was a noble for until
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digestive system. Once inside the alkaline gut of the target insect‚ the Bt protein is activated and binds to specific receptors. This mid-gut is punctured leaving the insect unable to eat. Within a few days‚ the insect dies. In the six years that it has undergone trial and safety evaluation‚ it was found that Bt corn is safe foe human consumption because Bt corn is very specific. The Bt protein will only affect an organism (ACB) with specific receptor sites in its alkaline gut where the proteins can
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Protein BIOL160: Lab Report 1 January 30‚ 2013 Lab partners: Park Jin Mun 0304299 Tan Zhi Chen 0306521 Hypothesis 1) If a calculated absorbance
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Introducton : The most common macromolecules found in living organisms are carbohydrates ‚ lipids‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain tests to determine the presence of
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soda made out of? (baking soda‚ is a chemical salt that occurs in its natural form as the mineral nahcolite. NaHCO3 is an amphoteric compound‚ which means it may react as an acid as well as a base‚ although in aqueous solution it is slightly alkaline).(Sep 3‚ 2013 ) Or in other words baking soda is just a chemical that is natural and it reacts to different stuff in many different ways like if you combine it with lemon it whitens your teeth if you combine it with vinegar it makes bubbles and starts
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CHAPTER 1 OBJECTIVES OF THE STUDY ▪ To know the customer perception towards Eveready flashlights with respective to the china made rechargeable torches. ▪ To find out the factors that tends to put an impact on Eveready LED torches. ▪ To find out what are the parameters customers/consumers look into before purchasing flashlight/torches. ▪ To know price sensitivity.
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Introduction Duracell is a member of the Gillette Company owned by Proctor & Gamble and is the alkaline battery market leader holding approximately 50 percent of the U.S. market share. Gillette’s overall goal focuses on the skillful marketing of superior technology to achieve worldwide leadership. The Duracell name means reliability to consumers and that is why their products are trusted by customers every day. They use the most advanced technologies to ensure that the power is there when the
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