Environmental factors affecting obesity 1. introduction 2. method equipment 3. budget 4. time frame Calorie Consumption In America‚ a changing environment has broadened food options and eating habits. Grocery stores stock their shelves with a greater selection of products. Pre-packaged foods‚ fast food restaurants‚ and soft drinks are also more accessible. While such foods are fast and convenient they also tend to be high in fat‚ sugar‚ and calories. Choosing many foods from these areas may
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Abstract: This lab tests how temperature and pH affect how enzymes will function. The lab showed that temperature will denature an enzyme when past its optimal working temperature and won’t denature in cold temperatures‚ but have slowed molecular activity. pH will also have an affect on an enzymes efficiency‚ when out of optimal pH the enzyme will not function as it is supposed to and if to far out of the optimal pH the enzyme will change shape and no longer work. Enzymes also showed to be reusable
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are isolated from food products and air (Holt‚ 530). Micrococcus can generally be found anywhere that has been contacted by soil and air. Since the water fountain was outside and exposed to air‚ the unknown isolate can relate to the Micrococcus environmental characteristics. From this work we conclude that when working this specific unknown isolate it compares to members of the Micrococcus genus. Introduction Environment isolation of an organism involves identifying the morphology‚ types of media
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children are born healthy and try to do our best of making sure they stay that way until they are adults. However‚ sleeper effects are aspects that affect fetuses when born or later on in life. One agent in the environment that can adversely disturb an unborn child is teratogen. Most fetuses are exposed to at least one teratogen (motorized or physical instruments‚ environmental substances‚ communicable agents) (Palenchar‚ 2005). Fetuses can also be affected by an individual’s age‚ fitness‚ nourishment
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September 10th‚ 2013 EXPERIMENT 1 LEARNING BASIC OPERATIONS: THE EFFECT OF PH ON A FOOD PRESERVATIVE Purpose: The purpose of this experiment was to investigate a competitor’s claim that the food preservative‚ sodium benzoate (C6H5COONa)‚ made by Fresh Foods International (FFI)‚ changed into a new substance in stomach acid. Stomach acid has a pH between 1 and 3 due to the hydrochloric acid content. Based on the net equation given in the book as well as the solubility of the product our hypothesis
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Usman Omid Biology IB 1A The Effect of Temperature on Beetroot Membranes _Aim_ This practical will test the effect of temperature on the integrity of the membranes‚ _Introduction_ The cells of beetroot contain a pigment called betalain in their vacuoles. It is kept inside the cells by the membranes. If these membranes are damaged‚ then the betalain leaks out. The amount that leaks out can be assessed‚ as the leaked out pigment will color the water surrounding the cells. This information can
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enzyme‚ just like any other enzyme‚ has an optimum PH and temperature range in which it is most active‚ and in which the substrate binds most easily. The purpose of this experiment was to determine (1) the reaction rate of an amylase enzyme in starch and (2) the environmental factors that can affect the enzymatic activity. The hypothesis‚ in relation to the enzymatic activity by variables such as the substrate concentrations‚ temperature‚ PH and chemical interactions on the rate of reaction
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going through hell because of racism and they were the that were being treated like trash while the rich people were enjoying their lifestyle.the rich countries did want to pay $100 billion a year‚they thought that it was unrealistic demand. Environmental racism is not something to be taking lightly because racism can make certain people feel some type of way‚and by doing that people might end up taking their lives out. there are certain people
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Anna Wencel II IB |LAB REPORT | |Factors affecting the growth of bacteria | Introduction: Bacteria make up a large domain of prokaryotic microorganisms. And how can be bacteria destroyed? Antibiotics are widely used in the prevention and treatment of infectious diseases. Antibiotic
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Effect of Temperature ( C ͦ) on Enzyme Catalase Activity in potato Aim: To investigate the Effect of temperature (10‚ 37‚ 60) Celsius (C ͦ) on enzyme catalase activity in potato using 2% of hydrogen peroxide (H202) as the substrate measuring the height (cm) of oxygen gas (bubbles) and calculating the volume of oxygen bubbles produced (cm3) Introduction: Enzymes are biological catalysts that speed up metabolic reactions without being affected. They lower the activation energy needed to start
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