OSMOSIS ASSESSMENT TASK Introduction Osmosis is the net movement of water particles from an area where they are in high concentration to an area of low concentration‚ down a concentration gradient. Hypothesis: Will a high concentration of salt solution affect the mass of a potato chip? Variables Controlled variables: -The sizes of the potato chips. Bigger size of potato chips will weigh heavier and the smaller potato chips will weigh lighter‚ if we don’t use the same size of potato chips
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Natalia Wierzchon A.P. Biology Lab: 1. Osmosis 09/10/2010 I. Introduction a. Purpose: The purpose of this lab was to observe the diffusion process of water‚ osmosis‚ as well as create an understanding of water potential‚ the basis of osmosis. The experiment proved how water molecules in a solution are able to move from an area of low solute concentration‚ high water concentration‚ to an area of high solute concentration‚ low water concentration‚ diffusing “down” the water gradient.
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Sophie Murdock Osmosis Lab Osmosis in Plant Cells: Solution Initial Volume (mL) Final Volume (mL) Percent Change Distilled Water 0.8 1.0 125% 0.4% NaCl 0.5 0.8 160% 0.9% NaCl 0.6 0.8 133% 5% NaCl 0.6 0.5 83% 10% NaCl 0.6 0.5 83% 8. The cells in the solutions of distilled water‚ 0.4% NaCl‚ and 0.9% NaCl would all appear to be inflated and could burst. This is due to the fact that the solution is hypotonic to the potato‚ thus water is entering the cell. Meanwhile‚ the cells in the solutions
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A common theme in society today is that money is the key to happiness. In A Raisin in the Sun and Death of a Salesman the theme that money is the root of contentment is also present. In A Raisin in the Sun‚ Walter Lee has such a desire to be rich that he neglects his son and wife. Willy‚ in Death of a Salesman‚ is also very distracted by the thought of money. First of all‚ Willy believes that he needs to be as successful as his brother‚ Ben‚ in order to be happy. He spends his whole life wishing
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Osmosis is the selective diffusion of water and other molecules across membranes‚ which in the case of living organisms‚ the solvent (water) would have net movement across a selective permeable membrane. Osmosis only occurs when a membrane such as that of a cell is permeable to water molecules but not to specific solutes (Tortora & Derrickson 2014). Certain simple molecules such as oxygen‚ water and carbon dioxide can travel across the cell membrane by osmosis‚ a passive process similar to other
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Objective: To study osmosis in living plant tissue. Biological principles: Water potential is the tendency for water molecules to enter or leave a system by osmosis through a differentially permeable membrane‚ while osmosis is the process in which water molecules move passively from a region of higher water potential to a region of lower water potential through a differentially permeable membrane. Therefore‚ potato cells‚ with their differentially permeable membrane‚ are selected as the medium
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shows that although the common belief is that reading will make us better people‚ it doesn’t mean anything to us unless we really know how to comprehend the book itself and allow it to influence our decisions. A text that applies to this idea is A Raisin in the Sun. It is just a normal book until you take it to a new realization and apply it to much more. Through this book‚ I have learned how characters are influenced by their surroundings‚ how pieces of the book connect to this quote‚ and how my
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white girls are walk together as sisters and brothers.” Martin Luther King Jr. In the play “A Raisin In A Sun” by Lorraine Hansberry is essentially about dreams‚ including the American Dream. The play takes place around the 1950’s in Chicago’s south side‚ when segregation was still around. In this play you meet a cast of people with dreams of a better life that compares the novel "A Raisin in the Sun" with Martin Luther King’s speech "I Have a Dream." It Analyzes the similar themes found in
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The term despair means ‘the complete loss or absence of hope’ which is what South Side Chicago mirrored in the novel A Raisin in the Sun. Just by looking around you could tell that all hope was lost when there’s widespread poverty on Chicago’s South Side. Also by taking a look around the Younger home you can see it in the faces of people -- and the furniture?! On the first few pages opening Act I‚ Scene I‚ the text says “Now the once loved pattern of the couch upholstery has to fight to show itself
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Referring to the latest version of A Raisin in the Sun (2008) it is set on the Southside of Chicago‚ Illinois. In the film‚ the head of the household is Lena Younger (Phylicia Rashad)‚ who the family calls‚ “Mama.” Mama’s husband‚ Walter Sr. has passed away so a settlement for $10‚000 from his life insurance policy is being mailed to her. Walter Jr. (Sean Combs) and Beneatha (Sanaa Lathan) are Mama’s children and they believe the check should be given to either of them for medical school or an investment
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