The effect of increasing substrate concentration on rate of an enzyme reaction. Enzymes are biological catalysts that lower a reactions activation energy making possible many of the reactions needed for life to exist. Enzymes have a high specificity which have been explained by many theories such as Fischer’s lock and key. Currently the most widely accepted theory is the induced fit hypothesis proposed by Koshland in 1958. This hypothesis solves some of the problems with the Lock and key theory
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The Psychological Effect of Popular Media on the Increase of Crime Over time‚ it has been observed that people have a tendency to learn from the world around them and from the people they interact. The phenomenon of learning within a social context by observation can be termed as social learning. Most individuals tend to observe and replicate the behavior of things with which they come in frequent contact and this is more likely to occur if their feel an emotional attachment with the object
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Report: Factors which Affect the Activity of the Enzyme Catalase Purpose: Must include: background information about concepts involved in the lab‚ statement of purpose of the lab identification of independent and dependent variables. A hypothesis is often not necessary or appropriate. Enzymes are proteins that speed up chemical reactions in cells. They break down molecules called substrates. Each enzyme has only one substrate that it breaks down. Enzymes are produced in the cells of the
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Investigating the effects of temperature on cell membranes Independent variable: Temperature of beetroot Dependent variable: Absorbency of light Hypothesis: As temperature rises to its optimum temperature‚ the absorbency of light will increase because protein is an enzyme and will therefore be affected by temperature. This is because more beetroot dye will pass through the cell membrane and then into the distilled water. The deeper the colour of the beetroot dye‚ the higher the absorbency
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Effect of physical training on the capacity to secrete epinephrine M. Kjaer and H. Galbo +Author Affiliations 1. Department of Medical Physiology B‚ Panum Institute‚ University of Copenhagen‚ Denmark. Abstract Epinephrine responses to hypoglycemia and to identical relative work loads have been shown to be higher in endurance-trained athletes than in untrained subjects. To test the hypothesis that training increases the adrenal medullary secretory capacity‚ we studied the effects of
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Investigating Marketing Unit 3 Applied Business Introduction This piece of coursework is for my Unit 3 Applied Business. The coursework involves investigating marketing within a chosen business. The business I have chosen to investigate is Kitchen‚ a small business located in Snaith. The aim of my coursework is to evaluate the marketing strategy used by Kitchen to sell bakery and deli produce and also to operate a café. To investigate my chosen business I will give a brief background to Kitchen
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Methods for investigating the brain: |Method for Investigating the |What it is |Advantages |Disadvantages | |brain | | |
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Aim: To investigate the effect of hydrogen peroxide concentration on enzyme catalase Indroduction: Enzymes are proteins. They function as biological catalysts. They lower the energy barrier of a reaction so that the reaction can take place at body temperature. Also‚ they can speed up Metabolic reactions without being changed or used up. During a reaction‚ an enzyme molecule combines temporarily with the substrate. When the reaction is complete‚ the enzyme molecules returns to its original dorm
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Enzyme Report Case 1 - Hereditary Fructose Intolerance 1 & 2. Enzymes take on a variety of roles in the human body at the cellular level. Specifically‚ they aid in the breakdown of macronutrients such as glucose and fructose so that the body can use them. Although reactions within the body would occur without enzymes‚ enzymes provide control because the reaction is not needed all of the time. Enzymes function in specific environments such as temperature or pH; some enzymes are specific
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with Medical Surgical students in clinical‚ lab and classroom settings. In her spare time Dixie enjoys spending time with her husband‚ three children‚ one grandson and her pets. She loves spending time outdoors and especially loves water-related activities like jet skiing and swimming. Congrats to Gale Winger for being elected to the student governance committee! Her advice to students is “School can get busy and crazy hectic at times‚ however‚ you must always remember to take a moment
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