larger enzyme molecule. Moreover‚ the molecule that the enzyme acts upon (substrate) fits precisely into the depression and forms an enzyme-substrate complex. The substrate molecule is held into the active site by bonds that temporarily form between certain amino acids of the active site and groups on the substrate molecule. Enzyme-substrate complex: The enzyme-substrate complex formed when the enzyme binds with its substrate lowers the activation energy (minimum amount of energy needed to activate
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to learn... when is it that we will understand that the well-being of the environment and our survival are intricately woven into each other. Good morning respected teachers and my dear friends ...today I Nikita am going to speak about how human activities are affecting flora and fauna? We are facing a serious crisis in biodiversity‚ the variety of animals‚ plants and their habitats. We humans are part of this biological diversity and depend on it in many ways. The rate that animal and plant species
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Concentration Camps There were many social‚ political‚ and economic causes of WWII. A political cause was the treaty of Versailles. The treaty of Versailles was when we forced Germany to take the blame for WWI. If they didn’t sign the treaty‚ Germany would face invasion. As Germany did not start WWI‚ they felt it was unfair. An economic cause of WWII was the Great Depression. The Great Depression happened world wide. The Great Depression started with the stock market crash. The stock market crash
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Jacquilyn L. Estrada Date Performed: February 23‚ 2013 Z-2R/Z2-12 Date Submitted: March 4‚ 2013 Exercise 2: Effects of Human Activities on the Lake System Introduction Laguna de Bay is said to be the Philippines’ largest inland water body covering situated at the heart of CALABARZON. It is also specified that a total of twenty-four (24) sub-basins drain directly to the lake‚ with the Pagsanjan-Lumban Rivers System contributing to as much as 35% of the total inflow to the lake.
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The purpose of this study was to observe the effect of different concentrations of sodium chloride have on the germination of lettuce seeds‚ Lactuca sativa. A study done by Katembe et al.‚ (1998) stated that an increase in salt solution in the environment of the seed will slow down water imbibition‚ therefore‚ preventing germination and root growth. The prediction for this experiment was that lettuce seeds‚ Lactuca sativa‚ having a higher concentration of salt in their environment will have a lower
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Introduction I am going to try and measure the rate of respiration in yeast and find out what factors affect the rate of respiration. I am going to change the concentration of the glucose solution and I’m going to measure the volume of gas produced during respiration in cm³. Yeast contains enzymes. Enzymes speed up a chemical reaction – they’re biological catalysts. Yeast can respire both aerobically and anaerobic; the anaerobic respiration of yeast is known as fermentation. The equation for
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Objective To investigate the effect of carbon dioxide concentration on the rate of photosynthesis Introduction Photosynthesis is a process that is essential for every living organism. Organic substances‚ such as glucose‚ are made from carbon dioxide and water by light energy from the sun. The light energy is absorbed by chlorophyll and converted to chemical energy. During the process‚ oxygen is released as a by-product. The rate of photosynthesis is affected by a few of factors‚ including
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Aim: To investigate how effect of Detergent Concentration (cont.) has on Membrane permeability of Beetroot cells. Hypothesis: I predict that as detergent concentration increases‚ the solution will become less clear‚ plus mass increases. The increases in mass will indicate that the water potential of the Beetroot cell is lower than that of the surrounding sucrose solution. The Beetroot discs will become flaccid and decrease in mass if the water potential of the surrounding solution is lower than
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Enzyme Catalase Activity in Reaction with the Substrate Hydrogen Peroxide Abstract We performed these experiments to observe the effects of enzymes on the rate of reactions. We tested and compared the activity of the enzyme catalase on the substrate H2O2 in various states and percentages‚ and observed the absorption values of the enzyme-substrate relationship at different concentrations. Our results show that the more substrate available‚ the quicker the reaction will happen except in one test
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The effects of human activity on ecosystems and biodiversity Agricultural Practice Biodiversity is a measure of the diversity among organisms in different ecosystems. "Diversity" in this definition includes diversity within a species and among species‚ and among ecosystems.’ Monoculture is when a farmer produces or grows one single crop over a wide area. The advantages to the farmer of monoculture are‚ “the reduced plant competition for nutrients‚ space and solar radiation‚ control of unprofitable
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