By: Eugenia Collier Sweet Potato Pie Eugenia W. Collier is an AfricanAmerican writer and critic best known for her 1969 short story "Marigolds"‚ which won the Gwendolyn Brooks Prize for Fiction Award. Born: 1928‚ Baltimore‚ Maryland‚ United States. Books: Breeder and Other Stories. Education: University of College Park‚ Columbia Howard University. Maryland‚ University‚ Building Backgrou Sharecropping nd This was a farming system practiced in the South in years between the Civil War and
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Lab # 2 Diffusion & Osmosis Introduction Kinetic energy‚ a root of energy stored in cells‚ causes molecules to hit into each other and move in new directions. Diffusion is the result of this contact. Diffusion is the random movement of molecules to an area of lower concentration from an area of higher concentration. Osmosis is a type of diffusion. This is the diffusion of water through a selectively permeable membrane from a region of higher water potential to a region of lower water
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As I’m sitting there‚ watching a hot potato – a literal hot potato‚ fly towards me‚ I’m wondering what I got myself into. Rewind a couple of days and I’m in school talking to the new girl named Jocelyn. She wore converse and had these cool long side bangs that everyone in the eighth grade was jealous of and had come from some far off place called Falls City. As the new kid with the cool hair‚ everyone was competing to lure her into their posses’. I‚ a typically quiet‚ reserved person‚ tended to stick
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and yield of potato (var. Diamant). Different nitrogen levels viz. 0‚ 127.0‚ 190.5 and 254.0 kg N/ha significantly influenced plant height‚ foliage coverage‚ number of main stem per hill‚ days required for 80% maturity of the crop‚ fresh weight of haulm (g/hill)‚ number of tubers per hill‚ weight of tubers per hill‚ total yield of tubers per hectare and yield of seed and non-seed tubers per hectare. Application of 254.0 kg N/ha gave the highest yield of tubers (24.33 t/ha) and seed tubers (19.14 t/ha)
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Experimental Laboratory Report: An investigation into the rate of osmosis Liana Gohery - 98332250 12/12/2014 Word count - ………3000……….. 1. Abstract This study was conducted to investigate the effect of concentration gradients on the rate of osmosis. Osmosis is the cellular transport of water‚ this study was conducted to show the significance of the rate at which this occurs. Dialysis bags were filled with three different concentrations of sucrose solutions and two with water. They were
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Mateo BS AT - 1A NSCI 121 Assignment no.1 (Finals) 1.)What is Osmosis? Osmosis is the diffusion of the movement of water from a region of higher concentration to a region of lower concentration through a cell membrane or other semi-permeable membrane until an equilibrium is reached. It is a special case of diffusion (passive transport). Basic Explanation : Osmosis can occur when there is a partially permeable membrane‚ such as a cell
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Osmosis Rates in Artificial Cells Daniel George Department of Biology Grand Valley State University 1 Campus Drive Allendale‚ MI 49401 georged@mail.gvsu.edu Abstract The lab for this paper was conducted for the topic of osmosis‚ the movement of water from high to low concentration. Five artificial cells were created‚ each being filled with different concentrated solutions of sucrose. These artificial cells were placed in hypertonic‚ hypotonic‚ or isotonic solutions for a period of 90
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potential of a potato Aim Osmosis is the movement of water molecules from a region of high water concentration to a low water concentration through a semi-permeable membrane. Our aim is to investigate the water potential of a potato through osmosis‚ by finding the difference in weight before and after the potato has been set in a solution of water‚ sugar or salt. Trial Method Firstly we collected the equipment. This included a scalpel‚ potato cutter‚ and test tubes. Then we cut the potato using the
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affect the rate of enzymes reactions. One of them is pH‚ which influence on the enzyme activity will be the subject of this investigation. Catalase of potato tuber cells will be the enzyme used in the experiment. RESEARCH QUESTIONWhat is the influence of different values of pH on the activity of catalase in potato tuber cells?VARIABLESIndependent: potato discs treatment (placing them into buffer solutions of different pH values‚ mixed with hydrogen peroxide)Dependent: the activity of the catalase‚ reflected
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the amount of distalled water‚ catechol substrate‚ and potato extract in each tube was the same. (2ml) The size of the test tubes were the same also.
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