Aim The aim is to find the concentration (mole/dm3 (M)) of solute in a potato cell by using the process of osmosis and different concentrations of sucrose solution. Background information Osmosis is diffusion of water across a partially permeable membrane. It moves from a solution with less solute concentration (high water potential) to a solution with more solute concentration (low water potential). The one with a high water concentration is called a hypotonic solution and the low water concentration
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The purpose of this experiment is to study how enzyme activity is affected by environmental conditions. Researchers tested the level of potato extract enzyme activity with 1-11 pH‚ varying temperature‚ catechol solution‚ hydroquinone solution‚ and different measurements of catechol. In Figure 1A and 1B‚ pH levels were tested with potato extract to see how pH would affect the amount of Benzoquinone is formed in the potato. Although it was hypothesized that enzymes would form Benzoquinone better in
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Computer Science Exam Classes‚ Objects‚ and Methods Attributes – data components of a class that provide and traits for the object of that class; also called fields‚ properties‚ and instance variables Methods – code associated with an object in order to make it function and behave according to the class to which it belongs: Constructor methods – to create or instantiate objects from the class definition A default constructor will always be created and will initialize fields to 0‚ false
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1-Inception-Historical background‚ overall objectives‚ political climate‚ and pre-feasibility studies. 2-Development-Overall planning‚ feasibility studies‚ financing‚ and conceptual design. 3-Implementation-Detail design‚ construction‚ installation‚ testing‚ and commissioning. 4-Closeout-Reflection on overall performance‚ settlement of claims‚ financial status‚ and post-project evaluation. 1974- Initial tunnel ideas gather but abandoned. 1978-British & French discussions resumed. 1983-Frensh
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affect the rate of enzymes reactions. One of them is pH‚ which influence on the enzyme activity will be the subject of this investigation. Catalase of potato tuber cells will be the enzyme used in the experiment. RESEARCH QUESTIONWhat is the influence of different values of pH on the activity of catalase in potato tuber cells?VARIABLESIndependent: potato discs treatment (placing them into buffer solutions of different pH values‚ mixed with hydrogen peroxide)Dependent: the activity of the catalase‚ reflected
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When the Irish Potato Famine Struck Ireland On a sunny morning in 1845‚ Irish farmers were going to check their crops. A farmer named Abraham Fitz found black potatoes in his fields. He thought it may be only the one‚ so he moved over 4 rows and dug another potato out of the ground. This one was black and rotten. This causes Abraham to travel to his neighbors house and ask about their potatoes. His neighbor’s potatoes were black‚ rotten‚ and giving off a foul stench. This would later be discovered
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INTRODUCTION 1.1 BACKGROUND OF THE STUDY The industry refers to “any general business activity or commercial enterprise” (business dictionary). An industry is understood to be recognized as any groups or firms that produce a product and service for people in fulfilling their needs‚ demands and requirements. The term soft science industry is frequently used to refer to a firm involving business activity that is focused solely on soft skills that deal with the study of human and societies in the
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Qantas in the Airline Industry Air travel industry has come long way. Established with the intention of achieving more efficiency in communication‚ the industry has diversified itself to a far reaching economy. With the advent of war during the mid-centuries and globalization by the end of last century‚ the commerce morphed itself to become more useful in the economies of communication‚ freight‚ domestic and international investments‚ travel and leisure. Qantas which were among the
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Potato Chip Monopoly ECO204: Principles of Microeconomics Instructor: A monopoly is an industry composed of only one firm that produces a product for which there are no close substitutions and in which significant barriers exist to prevent new firms from entering into the industry (Case‚ 2009). In a different definition‚ it can be distinguished by a lack of financially viable competition to produce the goods or services as well as to substitute goods. Monopolies often refer to a procedure
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cell‚ so the water molecules diffused out of the cell through the selectively permeable membrane. The higher the concentration‚ the more plasmolysed the cell becomes and my results show this. The 0M bathing solutions in both experiments caused the potato cells to become slightly turgid‚ this means that there was a higher concentration of solution on the inside of the cell. So the water molecules diffused into the cell through the selectively permeable membrane. The rate of water loss decreases as
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