pH and Microbial Growth Introduction: Each organism has an optimum environment for growth‚ which includes pH level. Organisms that grow at near neutral pH levels are called neutrophiles. Those that grow best in acidic pH values are called acidophiles. Others‚ yet‚ grow best in alkaline pH values and are called alkaliphiles. In this lab‚ each group was assigned an organism‚ which was then used to inoculate 6 different pH levels. Materials and Methods: Followed lab procedure 29‚ “pH and
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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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Experiment 3: Soil pH measurement Introduction Aims The aims of the experiment were to determine the pH of a variety of soils which included sedentary‚ 3:2‚ sand‚ organic matter with the means of a pH meter at various soil water ratios and with or without calcium chloride. Method and Materials Samples of sedentary soil‚ 3:2 soil‚ sand‚ organic matter and compost‚ 100ml vials(x12)‚ bottle of distilled water‚ analytical balance‚ pH meter‚ 2 buffer solution of known pH‚ 0.25M calcium chloride
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Melanie McGivern. Access to nursing Group 2 Effects of pH on enzyme activity Contents Front cover Aim Introduction Hypothesis Prediction Variables Materials Methods Results Discussion Conclusion Bibliography Aim The aim of the experiment is to see the enzyme amylase catalyse starch in a chemical reaction. | | Introduction Enzymes are proteins. They act as catalysts‚ allowing chemical reactions to take
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Buffer Overflow Subscribe Hide Description Explain what buffer overflow attacks are and how they are created to attack our software. And‚ describe the best security measures you would recommend mitigate these buffer overflow attacks. Buffer overflow attacks occurs when hackers sending a large amount of data than the buffer was intended to hold‚ this large amount data immediately overwrite and corrupt other data in the buffer. Data contain codes to trigger specific actions that controls the program
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The Effects of pH on Slime Mold Dg Nicole Harris BIOL181 – 059 1 December 2011 The theory that slime mold is attracted to acidic solutions was examined by the slime mold‚ Dg. Dg’s preference of pH was examined by using a variety of pH solutions in a petri dish. The data suggests that the growth of fruiting bodies observed in pH 9 was comparable to that of pH 4. INTRODUCTION The 2002 scientific journal‚ “The Costs and Benefits
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Biology Lab Report Research Question: Effects of pH on amylase activity Introduction: Amylase is an enzyme that is in human’s saliva as well as the pancreas. Enzymes are biological catalysts that speed up a chemical reaction. They break down complex molecules into simple ones. In this case‚ amylase converts starches (complex molecule) into simple sugars. That is why foods like potatoes for example‚ may taste sweet to us‚ because they contain starch. The optimum pH for pancreatic
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and subscription information: http://www.tandfonline.com/loi/vsoc20 The Capacity to Be Alone as a Stress Buffer Reed Larson & Meery Lee a a a Department of Human and Community Development‚ University of Illinois‚ Urbana/Champaign‚ USA Version of record first published: 01 Jul 2010. To cite this article: Reed Larson & Meery Lee (1996): The Capacity to Be Alone as a Stress Buffer‚ The Journal of Social Psychology‚ 136:1‚ 5-16 To link to this article: http://dx.doi.org/10.1080/00224545.1996
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Buffer solutions and common ion effect A buffer solution resists (or buffers) a change in its pH. That is‚ we can add a small amount of an acid or base to a buffer solution and the pH will change very little. How to calculate pH of buffer solution containing both acid and conjugate base? Dissociation constant definition 1.1 can be rearranged into or (note that due to sign change [A-] was moved to nominator). This is so called Henderson-Hasselbalch equation (or buffer equation)
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atom gains an electron. These are the three subatomic particles that make up an atom and their characteristics. Essay- Buffer System Buffers resist pH fluctuations. A buffer is composed of a weak acid and a weak base. Carbonic acid is the weak acid and bicarbonate is the weak base. When a solution is to acidic the pH is low and there are to many hydrogen ions. The low pH level is caused by to many hydrogen ions. To make a solution neutral you would need to make more acid my combining bicarbonate
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