Biology Osmosis Observation

Independent: sugar concentration in potatoes. Controlled: time, potato form. Apparatus: 1. 5 plastic cups 2. Distilated water 3. Potato 4. Knife 5. Clock 6. Electronical scales (Â ±0,05) 7. Bag of sugar 8. Measuring cylinder 9. Tap water Method: Peeling down the potato and cutting it into 1cm3 cubes (25 cubes) Weighing potatoes on the scales Putting different amount of sugar into five plastic cups (1st no sugar 2nd 6,8g 3rd 13,7g 4th 20,5 5th 27,4g) Adding 100ml of water to each of the cups Mixing the sugar with water Putting in 5 potatoes into each cup Waiting 20 minutes Pulling out the potatoes, drying them up and putting on the scales Writing down new mass. Amount of sugar in solutionSolution concentration %Cup numberMass of five cubes before(Â ±0,05g)Mass of five cubes after (Â ±0,05g) 0g0%15,8g6g 6,8g6,37%25,1g5,2g 13,7g12,05%35,5g5,3g 20,5g17. 01%45,6g5,4g 27,4g21,51%55,5g5,3g Graph: While the concentration is from 0% to 6,37% the net mass gets bigger, later on from 12,05% to 21,51% the net mass gets smaller. When the concentration is from 0% to 6,37% the net mass change is positive, when from 17. 01% to 21,51% – negative. Conclusion: The potato lost more mass as it was submerged in bigger concentration solutions because the bigger concentration difference is, the osmosis will occurs more intensively. Evaluation: I think that laboratory work went pretty well, I managed to see the differences in potato mass change and make a conclusion of it. Next time I should write down original numbers and not rounded ones to give more accurate results. Biology Osmosis Observation Independent: sugar concentration in potatoes. Controlled: time, potato form. Apparatus: 1. 5 plastic cups 2. Distilated water 3. Potato 4. Knife 5. Clock 6. Electronical scales (Â ±0,05) 7. Bag of sugar 8. Measuring cylinder 9. Tap water Method: Peeling down the potato and cutting it into 1cm3 cubes (25 cubes) Weighing potatoes on the scales Putting different amount of sugar into five plastic cups (1st no sugar 2nd 6,8g 3rd 13,7g 4th 20,5 5th 27,4g) Adding 100ml of water to each of the cups Mixing the sugar with water Putting in 5 potatoes into each cup Waiting 20 minutes Pulling out the potatoes, drying them up and putting on the scales Writing down new mass. Amount of sugar in solutionSolution concentration %Cup numberMass of five cubes before(Â ±0,05g)Mass of five cubes after (Â ±0,05g) 0g0%15,8g6g 6,8g6,37%25,1g5,2g 13,7g12,05%35,5g5,3g 20,5g17. 01%45,6g5,4g 27,4g21,51%55,5g5,3g Graph: While the concentration is from 0% to 6,37% the net mass gets bigger, later on from 12,05% to 21,51% the net mass gets smaller. When the concentration is from 0% to 6,37% the net mass change is positive, when from 17. 01% to 21,51% – negative. Conclusion: The potato lost more mass as it was submerged in bigger concentration solutions because the bigger concentration difference is, the osmosis will occurs more intensively. Evaluation: I think that laboratory work went pretty well, I managed to see the differences in potato mass change and make a conclusion of it. Next time I should write down original numbers and not rounded ones to give more accurate results.

MANAGEMENT INNOVATION Essay Example | Topics and Well Written Essays - 4250 words

MANAGEMENT INNOVATION - Essay Example Market opportunities need to be seized with alacrity and new territories explored with professional ease and objectivity. Time should not denounce Nokia later that, like other large companies, it could not stay ahead of its time nor engage its rivals and competitiors in eventful combat in the market place. For this it is necessary that Nokia should be ahead of its times and grab every innovative opportunity that comes its way. During the course of this research, recourse has been sought to empower resources at their command through cases. Research design is mainly framed to identify and analyze different ways for conducting the research and it also involves taking decision related to the sources from which the information has to be collected. Research design is an arrangement of situation and examination of all the information in a way that it aims to connect the significance of the research. Finally it is seen whether the objectives of research has been met in terms of the research questions. It is seen that to a very large extent, the secondary research has been able to meet the goals and objectives of research. The history of Nokia could be traced back to 19th century, 1865 to be precise, when an enterprising engineer called Frederik Idestam constructed a wood-pulp mill factory in South Finland. The town in which this factory was built was called Nokia, which has also rendered the brand its name. During the early years, Nokia’s main business was paper and pulp, which gained a reasonable degree of success because of the demand for this kind of paper in Europe, post the industrial revolution. Russia was one of their main buyers. However, the disintegration of Russia during the early 1990s also adversely swung the future of Nokia and for a brief period, this company went into bankruptcy. Upon recovery, it began to focus on telecommunications,

Now is the time to make real the promisses of democracy Essay

Now is the time to make real the promisses of democracy - Essay Example Martin Luther King, who initiated the civil rights movement to gain the equality promised under the Constitution for black Americans. This essay will examine the need to make these promises of democracy real and tangible for American citizens. From the perspective of the founding fathers of the Constitution of the United States, pure democracy was the objective to be attained, through equality and freedom for all its citizens. During the early stages of the Civil rights movement, Dr. Martin Luther King clearly stated: â€Å"We are here because of our love for democracy, because of our deep-seated belief that democracy transformed from thin paper to thick action is the greatest, form of government on earth† (www.blackvoices.com). In this, Dr. King was clearly articulating the need for the principles and values of democracy to not merely remain inscribed on paper, but to also be actually evidenced in practice. He was articulating the realities of the day, when despite the promsies of equality enshrined in the Constitution, black Americans were not treated equally with the whites and discrimination and repression was exercised against them. In the same speech, Dr. King also went on to say that Ameircan democracy also allows individuals the right to protest in order to secure their rights. In order to make the promises of democracy real, it was necessary to ensure that they were reflected in the lives of the people. The existence of inequality and injustice therefore contradicts the principles of democracy and suggests that its promises are not being adhered to. Thomas Jefferson himself was convinced that blacks could never be integrated into mainstream American society because of â€Å"deep rooted prejudices entertained by the whites; ten thousand recollections, by the blacks, of the injuries they have sustained; new provocations; the real distinction which nature had made; and many other circumstance, will divide us into parties,