What are amylases? Amylases are enzymes that break down starch or glycogen. Amylases are produced by a variety of living organisms‚ ranging from bacteria to plants and humans. Bacteria and fungi secrete amylases to the outside of their cells to carry out extracellular digestion. When they have broken down the insoluble starch‚ the soluble end products such as (glucose or maltose) are absorbed into their cells. Amylases are classified based on how they break down starch molecules i. α-amylase
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Kandi Banks Alzheimer’s Disease Alzheimer’s disease is a progressive brain disease and is the most common form of dementia‚ a general term used for memory loss and the decline in intellectual and physical abilities. It most commonly is diagnosed in the elderly although there are cases of the disease occurring in people of middle age. There is no known single cause for Alzheimer’s although scientists believe that it occurs due to the chemical and structural changes in the brain which gradually
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Roberto Remigio Benigni‚ “Life is Beautiful‚” an Academy Award winning Italian actor‚ comedian‚ screenwriter and director of film‚ theatre and television. Movie release date was December 20‚ 1997. This movie speaks to the viewers through its comedic and yet tragic story line of the Holocaust. The main character‚ Guido Orefice‚ also played by Benigni‚ is a Jewish Italian book keeper living during the period of the Nazi takeover. Benigni approaches this horrifying event in the history with a different
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Killing Machines A drone is an unmanned aerial vehicle‚ an aircraft‚ without a human pilot on board. Its flight is controlled by a pilot on the ground or in another vehicle. These drones are used for remote sensing‚ commercial aerial surveillance‚ domestic policing‚ transport‚ scientific research‚ armed attacks‚ search and rescue‚ etc. The most controversial use‚ however‚ is armed attack. These drones are MQ-1 Predator UAV’s armed with Hellfire missiles. They were first used in 2001 from bases
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Effects of Enzyme Catalysis of H2O2 by Catalase Report by: Timmy Lin (#269164729) October 17‚ 2011 Mr. Rienzi AP Biology Problem: Measuring the effects of Catalase enzymes on hydrogen peroxide decomposition. Measuring the rate of the reaction when hydrogen peroxide and Catalase are mixed at the same ratio for different time (10‚ 20 30 60 120 180 360 seconds). Background: Enzymes are biological catalysts that carry out cellular metabolic processes with the ability to enhance the rate
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Received July 18‚ 1997X A radiochemical enzyme assay for studying cyclooxygenase (COX)-catalyzed prostaglandin biosynthesis in vitro was optimized with respect to both COX-1 and COX-2 activity. The assay can be used to assess the relative selectivity of plant-derived inhibitors on COX-1 and COX-2. Assay conditions were optimized for both enzymes with respect to concentration of cofactors (l-epinephrine‚ reduced glutathione‚ and hematin)‚ activation time (enzyme and cofactors)‚ reaction time‚ and
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Omar Shbeeb Toothpick Enzyme Lab 9/25/13 Introduction Enzymes are used in all metabolic reactions to control the rate of reactions and decrease the amount of energy necessary for the reaction to take place. They are responsible for the thousands of chemical interconversions that sustain life. Enzymes are referred to highly selective catalysts‚ meaning they speed up the rate of metabolic reactions. To react‚ they need to find a perfect match with a substrate. They converge at a place called an
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Abstract Vitamin C‚ also known as ascorbic acid‚ is a water soluble vitamin that is regarded as one of the safest and most effective nutrients. Vitamin C can be found in most fruits and vegetables. The goal of the experiment is to find out the concentration of vitamin C in three citrus fruits‚ orange‚ lemon and lime‚ and to compare them and find out which fruit contains the highest concentration of Vitamin C. By using the juice from each fruit to make a solution to combine with 10cm³ of DCPIP until
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Abstract Abortion is a very conversational topic‚ but abortion is something that should an option for all women. If you’re pregnant‚ you have the right to decide if abortion is right for you or not; not everyone is ready to have a child. Abortion has been made legal in 1973 by the U.S superman court‚ but it is still an open and widely discussed topic. There have been new laws that prevent abortion‚ making it harder for an abortion to take place. It is unfair for government to changes the rules as
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Biology Digestive Enzyme Experiment “Design an experiment in which you will investigate a digestive enzyme’s effect on digestion” Research Question: To determine the effect of enzyme concentration on the rate of digestion. This will be done by increasing the concentration of the enzyme diastase and investigate its effect on the rate of starch digestion. The rate will be determined by the amount of time it takes to completely digest the powdered starch‚ the complete digestion will be indicated by
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