Osmosis in Potato Tissue Experiment Background Information Osmosis can be defined as the movement of water across a semi-permeable membrane from a region of high water concentration to a region of low water concentration. The semi-permeable membrane allows small particles through it but does not allow large particles such as sodium chloride. Osmosis will continue until a state of equilibrium is reached i.e. there is no area with a higher or lower concentration than another area
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The purpose of this lab was to observe the rate of osmosis and diffusion‚ as well as the effect of molecular size of the particles on this rate. Part I of the lab was a demonstration of osmosis and diffusion‚ that dealt with raisins in different liquid environments‚ each with a different concentration of sugar. Part IV of the lab was using the same idea as the demonstration‚ by putting objects in different concentrations of a substance; in this case elodea leaves in salt water. In both cases‚ the
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Tittle : Identification of Biochemicals in Their Pure Form Objective : To identify the component of the solution in its pure form with various food tests and state the justifications. Apparatus : Test-tube ‚ test-tube holder ‚ water bath 95’c ‚ measuring cylinder ‚ white tile ‚ test-tube rack . Materials : Glucose‚ sucrose ‚ fructose ‚ hydrochloric acid ‚ potassium hydroxide ‚ albumin ‚ cooked starch ‚ corn oil ‚ copper (ll) sulphate solution ‚ ascorbic acid solution ‚ DCPIP solution ‚ Millon’s
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Roots of Individualism in Europe During the Middle Ages‚ independent thought was viewed disdainfully. Almost any idea deviating from the status quo‚ largely determined by the Roman Catholic Church‚ was condemned as heresy. One convicted of such a grievous offense was often excommunicated or killed‚ either by means of a proper execution or by a hostile mob. However‚ with the decline of the Middle Ages‚ the conditions arose for the birth of individualismthe development of which can be traced
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Structured Report on the Health Benefits of Fruit and Vegetable Consumption. Introduction: The importance of the consumption of fresh fruit and vegetables as a means of preventing disease has been known since at least 1747 when a ships surgeon‚ James Lind carried out an experiment which conclusively proved that citrus fruit prevented scurvy. According to Lind‚ scurvy caused more deaths in the British navy than French and Spanish arms combined. He gave some crew members two oranges and one lemon
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Despite the fact that it is named after Frankenstein‚ the fear of artificial human has existed before 1818; it was even present before the stormy days of Industrial Revolution and Enlightenment Age. In this piece of work‚ it is aimed to track the roots of Frankenstein complex to its origin by examining various myths and tales‚ determine the main cause of this fear and find Mary Shelley’s source of inspiration. Oedipus and Ancient Mythology Oedipus complex can be considered as the earliest form
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Information Osmosis is one of the four methods of moving particles across membranes along with simple diffusion‚ facilitated diffusion‚ and active transport. Water is able to move in and out of most cells freely. Sometimes the number of water molecules moving in and out is the same and there is no net movement‚ but at other times the molecular movement from one direction exceeds the movement from other direction and creates a net movement. This net movement is called osmosis. Osmosis is due to differences
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The roots of Affirmative Action can be traced back to the passage of the Civil Rights Act where legislation redefined public and private behavior. The act states that to discriminate in private is legal‚ but anything regarding business or public discrimination is illegal. There are two instances when opposing affirmative action might seem the wrong thing to do. The nobility of the cause that help others. Affirmative Action was a great starter for equality in the work place. The most
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“Fear and ignorance are the key roots to racism” - Timothy Long. During a period of prosperity in America‚ African Americans were being faced with the brutal struggle of equality. The Civil Rights Movement was a fight for social justice during the 1950s and 1960s for African Americans to gain equal rights in the United States. African American men and women‚ along with some whites organized local and national movements. They began pursuing change through petitions‚ negotiations‚ and nonviolent protest
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