Bromelian added to Gelatin: Bromelian is an enzyme found in pineapples. When Bromelian is added to gelatin it breaks down the protein and does not allow the gelatin to solidify. There are several factors that can cause an enzyme to slow down or to completely stop reacting. For example‚ temperature and pH can effect enzyme activity. Canned pineapple juice and fresh pineapple juice were used to see how the enzyme would react differently. In fresh pineapple juice the Bromelian have would have been denatured
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Materials : Pineapple juice‚ 0.1% ascorbic acid solution‚ 2‚6-Dichlorophenol – Indophenol (DCPIP) solution‚ distill water‚ filter paper. Apparatus : Small test tube and rack‚ 1cm3 and 5cm3 syringes with needles‚ 250ml beaker‚ 25ml measuring cylinder‚ stirrer‚ electronic scale. Methods Part A: Standardization of DCPIP (Titrant) solution 1. 1.00g of ascorbic acid tablet was measured by electronic scale and dissolved in 100.00ml of distilled water. 2. A 1.00cm3 syringe was used to transfer
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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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Pineapple on pizza is an abomination Pizza comes in many shapes‚ sizes‚ flavors‚ and forms most of these are good if not great. One type of pizza however is unacceptable. this should be banned. Hawaiian/Pineapple pizza is disgusting. When you get pineapple pizza you have to eat all of it at once because if you try to save it for a midnight snack or for lunch the next day the juiciness of the pineapple makes the cheese wet and the crust soggy. with soggy crust and wet cheese even the best pizzas
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Immobilization of Enzymes And Their Applications By‚ Shudhangshu Shekhar Kundu Introduction: What an enzyme? Enzymes are protein molecules‚ which serve to accelerate the chemical reactions of living cells (often by several orders of magnitude). Without enzymes‚ most biochemical reactions would be too slow to even carry out life processes. Enzymes display
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Abstract Enzyme catalysis was observed in order to analyze how changes in temperature‚ pH‚ enzyme concentration‚ and substrate concentration affected an enzyme-catalyzed reaction. This experiment analyzed the rate of enzyme-catalyzed reactions and observed the correlation between catalase activity and products formed. It was found out that the rate of an enzyme-catalyzed reaction starts off rapidly‚ decreases‚ and levels off or completely stops‚ and can be further affected by environmental factors
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The bonding of an enzyme to its substrate forms an enzyme-substrate complex. The catalytic action of the enzyme converts its substrate into the product or products of the reaction. Each reaction is extremely specific‚ distinguishing between closely related compounds‚ including isomers. For example‚ the enzyme sucrase will only act on sucrose and will not bind to any other disaccharide. The molecular recognition of enzymes is due to the fact that they are proteins‚ which are defined as being macromolecules
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Enzymes are biologic polymers that catalyze the chemical reactions that make life as we know it possible. The presence and maintenance of a complete and balanced set of enzymes is essential for the breakdown of nutrients to supply energy and chemical building blocks; the assembly of those building blocks into proteins‚ DNA‚ membranes‚ cells‚ and tissues; and the harnessing of energy to power cell motility‚ neural function‚ and muscle contraction. With the exception of catalytic RNA molecules‚ or
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Factors Affecting Enzymes The activity of an Enzyme is affected by its environmental conditions. Changing these alter the rate of reaction caused by the enzyme. In nature‚ organisms adjust the conditions of their enzymes to produce an Optimum rate of reaction‚ where necessary‚ or they may have enzymes which adapted to function well in extreme conditions where they live.Increasing temperature increases the Kinetic Energy. In a fluid‚ this means that there are more random collisions between molecules
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Enzymes are catalytic proteins that speed up chemical reactions by lowering the activation energy of the reaction. our body cells depend highly on enzymes to complete many important functions‚ such as digestion and metabolism. Enzymes are selective‚ in which each enzyme can only speed up a specific reaction. There are molecules that enzymes work with called substrates. substrate bind to an area of an enzyme called active site. There is specificity between the enzyme and substrate that react with
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