Lab One – Diffusion and Osmosis SECTION ONE: Methods Lab 1 – Diffusion and Osmosis can be broken down into four parts (A‚ B‚ C‚ and D). Lab 1A – Diffusion In this exercise‚ we tested diffusion through dialysis tubing. This was done through a demo with the teacher‚ rather than individually in groups. First‚ a piece of 2.5cm dialysis tubing was obtained. Then one end was folded and clipped securely so that a solution poured into the bag would not leak out. Next‚ the other side of the bag was
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Research Paper; “A Raisin in the Sun” Throughout many centuries we have seen racism and culture difference take place in America. This is a struggle that has been fought and faced for many decades‚ and it’s a struggle America still faces to this day. As our generation continues to learn about the struggles African American families faced in the past‚ we come to realize this struggle has not been overcome over the years. “A Raisin in the sun‚” a play by Lorraine Hansberry gives us an incite of what
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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
Free Cell Microscope Sodium chloride
A Raisin in the Sun Script Analysis In the play “A Raisin in the Sun‚” we explore the different themes of pursuing ones dreams‚ racial equality‚ and the significance of loved ones. We meet Walter Younger‚ our main character‚ who is a man defeated in his attempt to achieve material and financial wealth in an effort to support his family and better his life. To get to these means of wealth‚ he tried many “get rich quick” schemes‚ of which none prevailed. His failures lead to a life
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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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Raisin in the Sun Explanation Hansberry finishes her well-known play‚ A Raisin in the Sun with a cliffhanger. The next step in the characters’ lives is unknown and this next step is ultimately the resolution of the play. To establish a more satisfying ending for the readers‚ I decided to add an extra scene to the play. This extra scene provides the readers with a feeling of closure in the characters and confirms the pervasive racism against their race in society. The extra scene I added to the
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believe in themselves. One cannot count on money or others for them to pursue their dreams. In the novel “ A Raisin in the Sun” Lorraine Hansberry exemplifies that what you on to is the vision of what happens to people who has the wisdom and passion of their dreams coming true. But those who don’t are constantly being deferred and their dreams are like a dried up raisin the sun. “A Raisin in the Sun” is essentially about dreams‚ as the main characters struggle to deal with the oppressive circumstances
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Lorraine Hansberry’s A Raisin in the Sun is a stunning piece of African-American theater‚ an homage to a complicated mix of a family’s coming-of-age story and the issue of racism during the era of segregation. The raw‚ unflinching glimpse into the inner lives of the Youngers is at once as painfully intimate as it is arresting; so many of the characters are at first glance self-centered‚ yet they remain hauntingly entreating. It is impossible to deny the masterful composition of their individual
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Langston Hughes film “A Raisin in the Sun” is an excellent example if character versus conflict. Director Bill Dukes focuses on the average African American family in the Harlem Rennaisance times‚ living in the southside of Chicago‚ struggling with poverty and maintaining their dignity. Throughout the film Lena Younger‚ Walter Lee‚ Ruth and Beneatha face inner obstacles with themselves‚ conflict with outsidersm and cherished dreams. These dreams reveal the nature of the character’s longing to societal
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The symbolism of the plant in A Raisin in the Sun One might ask how the scientific facts of the functional purpose of a plant would connect to a literary piece‚ especially the well-known play‚ A Raisin in the Sun‚ written by Lorraine Hansberry. The plant in the text symbolizes the foundation for the family‚ honest hope‚ and Mama’s dreams. Symbolism is not a definition of an item‚ but represents something specific other than itself. Much like Mama’s plant‚ it represents many meaningful ideas with
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