One purpose of the experiment was to gain an understanding of diffusion and osmosis‚ specifically in context of a plant or animal cell reaction to an isotonic‚ hypotonic‚ or hypertonic solution. Another objective was to understand the nuances of simple diffusion‚ facilitated diffusion‚ and active transport and to explicate the characteristics affecting the rates of diffusion. The next objective was to be able to explicate the partition coefficient and its influence on hemolysis. The final objective
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How serious was opposition to Henry VIII’s religious changes? To an extent‚ Opposition to the religious reforms by Henry VIII wasn’t overly serious‚ the opposition did have some potential to cause damage but the danger was never severe enough to undermine the Tudor dynasty or threaten the omnipotent once of the “Most Christian King”. Opposition was only as serious as the support it had‚ which is why The Pilgrimage of Grace of 1536 was the most dangerous form of opposition. Henry ensured that disapproval
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MGMT 102 Sample questions (1-10) 1. Briefly describe any one of the communication models discussed in the textbook and/or lecture Lasswell’s (1948) model describes communication as a one-way transmission of messages. The model shows the ‘who’ as the ‘source’‚ the ‘what’ as the message‚ the ‘how’ as the channel‚ the ‘whom’ as the destination and the ‘effect’ as the outcome. 2. Describe three of the of the tests you can use to enable ethical decision-making Are we rationalising: Identify
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Date: 28/11/13 EVALUATION OF THE EFFECT OF SODIUM CHLORIDE ON ONION EPIDERMAL CELLS INRODUCTION A living plant cell will shrinks or swells depending on the solute concentration of the cell in relation to the solute concentration of the fluid surrounding the cell (1). It follows that water will move from a region of high water concentration to a region of low water concentration therefore‚ if a cell is placed in a hypertonic solution water will move from the cell into the solution until the
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partially supported because glucose left the bag and is proven by the positive test on the surrounding water. Also the beaker turned orange because of osmosis which attests to glucose leaving the bag. Iodine Potassium Iodine and water entered the bag. This was proven by the color change in the starch test as the bag turned black also because of osmosis. The only thing that the hypothesis lacked was that starch did not move at all. The beaker stayed yellow before and after because the bag is not permeable
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will continue to have throughout adulthood. Answer: A 2. Sex play that is innocuous during childhood is no longer innocuous during adolescence because: A. children report erotic feelings before puberty. B. the hormonal changes of puberty result in an increased sex drive in adolescence. C. children are not capable of kissing‚ petting‚ masturbating‚ or sexual intercourse before puberty. D. with puberty‚ pregnancy becomes a serious possibility. Answer: D 3. Which of the following is not
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Introduction: In this experiment‚ you will study osmosis. Your task is to design an experiment that will determine what concentration of solute is isotonic with the specimen cells. (Design) Procedure: You will be provided with the following materials: Potato‚ potato corer‚ scalpel‚ forceps‚ electronic balance 10 % salt solution‚ distilled water‚ 50 mL beakers‚ graduated cylinder‚ paper towel You must design a procedure that will enable you to determine the concentration
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Lab Report INTRODUCTION: This experiment is being done to find out what happens to a carrot or a potato if you place them in two different solutions. Osmosis has a lot to do with this experiment and is the movement of water molecules from a higher concentration to a lower concentration. Osmosis only deals with water and is a type of diffusion. The difference between all three solutions is that in a hypertonic solution the cells fluid rushes out of the cell and causes it to shrivel. In a hypotonic
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Osmosis in Red Onion Cells By: Youssef Gharib Brief Description of Osmosis in Red Onion cells: Osmosis is the diffusion of water from an area of low concentration to an area of high concentration across a semi-permeable membrane. The purpose of this lab is to compare the three different types of solutions affect on the relative size of the vacuole to the cell‚ the outer membrane of onion red cells (tunics) are used to figure out the different types. In the red onion you can see effects promptly
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Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. They know they could last without food for up to a month‚ but if they didn’t have water to drink they will be dead within a week. Hoping to postpone the inevitable‚ their thirst drives them to drink the salty seawater. They are dead in two days. Why do you think drinking seawater killed the sailor faster than not drinking any water at all? Today we explore the cause of the sailor’s
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