Meche March 3‚ 2009 Family Gathering: Roll Call It’s a warm summer day and a caravan of vehicles is pulling up for the main event. The sounds of music playing in addition to Frisbees flying and kites swaying in the same wind that’s delivering the sweet aroma of the BBQ ribs is what sets the stage. Familial hugs accompanied by conversation and laugher take place while anticipating the feature presentation; the family gathering. When thinking about a family gathering it’s like thinking about a stage
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ADVANCED BATTERY TECHNOLOGY SCI/256 People‚ Science‚ and the Environment Environmental Science Dr. Larry Collins‚ Instructor SUMMORY There has been a huge increase in the need for energy worldwide for years‚ because of industrial developments and the population growth. As a result‚ there is a shortage of electricity and fuel causing the inflation of energy cost to go higher and higher. Police are directing traffic at gas stations‚ while angry frustrated people spend hours in line
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observe the osmosis reaction in a potato with salt and water. In cooking cooks will soak their cut potato’s in water if they will not use them immediately. This allows the potato’s to be used later without turning color. The experiment shows the flow of water through the membranes of the potato with salt over a period of four hours. II. Objective: The reaction of the potato to the side submerged in water and the half excavated with salt. III. Raw Materials: Potato‚ Salt‚ Water‚ clear container‚
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foam that can be measured. ANALYSIS QUESTIONS 1. a) Describe the effect of damaging the potato on the catalase activity. With the increased level of damage to the potato‚ there appeared to be more activity within the reaction between the catalase and the H2O2. b) Explain at the cell level why crushing or macerating the potato has this effect. When you crush or macerate the potato‚ you are breaking the cell walls of each individual cell. Once this happens‚ the catalase is
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Title: Osmosis and water potential Aim of the experiment: Finding the water potential of potato. Biological principles: Independent variable: concentration of the solution. Dependent variable: percentage changed in weight of the potato strips. Controlled variable: size of the potato strips‚ it can be controlled by cutting the length of the strips. Procedure: Table 1. Concentration of sucrose solution table Concentration/ M | Sucrose Solution/ ml | Distilled
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There were many inequalities in the novel Gathering Blue. Inequalities that were not necessary and could have been fixed. Many of the problems were due to people being selfish and not wanting everybody to be equal. Kira‚ the main character‚ was subjected to most of the inequalities. She was deemed imperfect by everyone and it changed her life. In the novel Gathering Blue‚ not all people have the same rights; Mainly the physically imperfect people‚ the talented and the poor people. Kira is just
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change‚ means there is no net loss or gain of water. Introduction This study shares the results of an effort to understand diffusion and osmosis in general. It focused more into osmosis in plants cell‚ and how to indirectly measure osmolarity in potato tuber tissue. Osmosis is the diffusion specifically of water across a membrane. Diffusion occurs when certain substance‚ such as an ion‚ is more concentrated on one side of membrane. If the membrane allows this ion through‚ the ions will move from
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harmful action against a person or group in response to a grievance. Victory is the success in a struggle against difficulties or an obstacle. Allegiance‚ revenge‚ and allegiance; these are all three reoccurring themes in Ernest J. Gaines’s novel‚ “A Gathering of Old Men.” This novel takes place in a 1970’s Louisiana plantation where a murder has occurred. The plantation ’s boss‚ Beau Baton‚ has been murdered as the story begins. The actions of each character in the novel open a new world of possibilities
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diffusion through potato core in different concentration (viable) : The concentration of solution in a solution will affect the movement of water across potato cell membrane Material: Potato core Sucrose solution (0.2‚0.4‚0.6‚0.8‚1.0) Electronic Balane Test tube and rack Scalpel Plastic Weighing tray Cork Borers Method: Day 1 use you cork borers to bore 6 vertical hole on your potato. remove the potato cylinders from cork borers. take the potato cylinders
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If the pH level of the solution is more basic‚ then the potato membrane will weigh less due to osmosis. Our null hypothesis was: If the pH level of a solution is either acidic or basic‚ then it will have no effect on the weight. The independent variable was the different solutions of different pH values. The dependent variable was the weight of the potato‚ which was measured in grams. The baseline of this experiment is the weight of the potato when in the milk solution because milk has a neutral pH
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