relationship between substrate concentration and initial reaction rate provided that substrate concentration is much greater than enzyme concentration. Enzymes are essential to life as they are required for many vital metabolic reactions to occur. To adequately explain the properties of enzymes‚ it is assumed that an enzyme-controlled reaction takes place through an enzyme-substrate complex by the lock and key mechanism. It is hypothesized that a greater concentration of product is achieved through
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Anatomy of Flowering Plants Tissues A tissue is a group of cells having a common origin and usually performing a common function. Based on cell’s capability to divide‚ tissues are classified into two main groups which are as follows: 1. Meristematic and 2. Permanent tissues. Meristematic Tissues: Cells in the meristematic tissue are capable of dividing. Meristematic tissues are found in those regions which need to grow continuously. For example‚ root tips and stem tips contain meristematic
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experiment diluted solutions of amylase were created and then tested using a starch solution‚ I2KI for reaction times. The answer to the question was proved to be that more concentration of amylase speeds up the reaction time. Introduction The enzyme‚ amylase is found in the saliva of most animals and in humans. Amylase hydrolyzes starch‚ a plant’s reservation of carbohydrates. Amylase causes a chemical reaction in the polysaccharide starch that breaks down the glucose molecules into maltose
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compare the action of a catalyst (enzyme) under different environmental conditions. This was determined by performing a variety of different experiments. The first experiment was performed by adding hydrogen peroxide to sand. Due to the fact that the sand was not soluble in the hydrogen peroxide‚ no reaction thus no catalyst were present. Manganese dioxide was also added to the hydrogen peroxide creating a moderately fast reaction thus leading to believe that an enzyme was present to lower the activation
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retain copper that has been taken in through an individual’s diet‚ rather than the liver turning it into to bile to be disposed of. The liver becomes more and more damaged as the copper accumulates‚ and when it has no other place to be stored within the liver‚ it gets released into the bloodstream‚ carrying the copper throughout the body‚ onto other organs. This is how the accumulation of copper not only affects the liver‚ but manages to affect the nervous system‚ eyes‚ as well as the kidneys. In a specific
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AIM The aim of this investigation is to explore the effect of different concentrations of bile salts on the time taken for the lipase enzyme to break down fat. BILE Bile is a brownish bitter alkaline fluid produced by the liver and made by the hepatocytes from water‚ bile salts‚ bile pigments cholesterol and phospholipids and stored in the gall bladder. Bile is directly connected with digestion. It is released sporadically into the small intestine (duodenum) which is part of the gut in order
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Effects of Changes in Physical Properties on Enzyme Activity By Alex Hoffmann First Individual Lab Report Wednesday 7:30-10:15pm 10/24/12 Meghan Duell Abstract The goal of this lab was to determine the effects of certain physical properties on enzyme activity. Enzyme activity was measured by the height of the bubbles that appeared after the enzyme was added which are proportional to the rate of the reaction when time is constant. The fact that enzyme activity is affected by physical properties
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substrate concentration‚ the enzyme is working at “maximum efficiency.” With a concentration at 40‚ it produced 2‚339 products. 2. The maximum velocity of a reaction is reached when the active sites are almost continuously filled. Increased substrate concentration after this point will not increase the rate. The reaction rate increases as substrate concentration is increased. It will soon level off though. 3. When the concentration is at low substrate‚ most of the enzyme molecules are not filled
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important facts to consider when thinking about liver transplants. Alcoholism is the leading cause of liver disease‚ donor livers are extremely scarce and liver transplants are very expensive to perform. These facts force us to ask the question‚ Should alcoholism be a factor in deciding who receives liver transplants? I propose that alcoholics who have done nothing to better their condition should be placed at the bottom of the waiting list for liver transplants. Not all alcoholics should be excluded
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too because of a stupid disease? Chronic liver disease- is a disease process of the liver that involves a process of progressive destruction and regeneration to the liver. Personally I know it sucks because I’ve had too deal with it. It’s hard to watch someone you love and care about go through it the four stages of it and then end up dying at the end of it. Approximately 3.5 to 4.6 million are infected with chronic liver disease(John Hopkins). Chronic liver disease rising every day even in young
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