Impetuosity Essay example - 1130 Words

Impetuosity Impetuosity is a tragic flaw that affects characters and their actions. This flaw within a character will ultimately cause the death of the protagonist. Write an essay in which hasty decisions or actions result in the final tragedy of the play. Definition Impetuosity means acting without thinking about the consequences. A few of the characters in the play ‘Romeo and Juliet’ demonstrate this characteristic through the things they do and say. The most prominent characters that show this trait are Romeo, Juliet, Lord Capulet, and Friar Lawrence. Romeo The essay shall start by talking about Romeo. As soon as Romeo meets†¦show more content†¦Another impetuous action made by Romeo was the killing of Tybalt and Paris. These two murders, although he was provoked, were committed by Romeo on impulse. He did this without thinking about the consequences. Romeo did this because Tybalt had just murdered Mercutio, while Romeo was trying to prevent it. Romeo was therefore furious and enraged, and so killed Tybalt to balance the scales. The same happened with County Paris. Paris said a few things that Romeo didn’t like very much, and so because he was so focused on what he was going to do, which was to lie next to Juliet, he would stop at nothing, least of all Paris trying to protect Juliet, and so challenged him to a fight. He was not thinking about the risks involved, such as someone appearing from around the corner, and discovering them fighting. Not only that, but he is doing the one thing that he banished for. Admittedly , Romeo wasn’t thinking about these things because he had just been told that his wife was dead, and even if someone had found him, he would have been executed for coming back, which is what he was planning to do, as he was going to commit suicide anyway. The final impetuous act of Romeo’s was when he bought the poison from the apothecary, ‘Hold, here is forty ducats; let me have a dram of poison, such soon-speeding gear as will disperse itself throughShow MoreRelatedRomeo And The Friar Character Analysis742 Words   |  3 Pagesmeal, the reader knows when a character is flawed, and it is obvious to any reader that Romeo and the Friar are imperfect. Romeo and the Friar’s flaws are that Romeo is impetuous, and how the Friar is reckless. The first flaw shown is Romeo’s impetuosity. When Romeo makes any kind of decision, he doesn’t think of what the outcomes of his actions will be. Romeo is careless in his actions and honestly doesn’t care about what will happens. This is shown through many things, for example, â€Å"fallingRead MoreFate and Free Will in Romeo and Juliet1546 Words   |  7 Pagescould be argued firstly that it is not fate that, firstly means that Romeo and Juliet meet and fall in love, and, secondly means in turn that their love is destined not to come to fruition, since we are made aware of the two main characters impetuosity and extreme youth and inexperience at various points. Both make it clear that they feel they have no choice but to love one another, but we dont have to agree with this, and at times even the lovers themselves seem at least dimly aware of theirRead MoreRomeo And Juliet Character Analysis1434 Words   |  6 Pageswhich include impetuousness, impulsiven ess, and impatience (Desai, 1969). There exist several different and distinct schools of though regarding the source of the tragic ending to Romeo and Juliet. The first school of thought believes that Romeo’s impetuosity and impulsiveness is the main source of tragedy in the play. While another school of thought believes that fate and fate alone conspires against Rome and Juliet to bring about the tragic ending to the play. The final school of thought believes thatRead MoreHamlet And Laertes By William Shakespeare1469 Words   |  6 Pagesfathers, but contrast in their approaches to achieving revenge, and their view of life as a whole, their failures revealing the inevitability of fate. Just as Hamlet’s inaction hinders him from achieving his goal of killing Claudius, Laertes’s impetuosity similarly leads him astray from his goal their inability to achieve these goals. The power of fate is thereby revealed through the futility of human actions due to the looming and palpable presence of human mo rtality. The downfall of each hero dueRead MoreEssay on John Richardsons Wacousta671 Words   |  3 Pagesfrom his previous social and cultural restrictions. He and Colonel de Haldimar represent a pair of perfect opposites, as Wacousta himself describes it: He all coldness, prudence, obsequiousness and forethought. I all enthusiasm, carelessness, impetuosity and independence. (Richardson, 347). This, before Freud, is essentially the ego versus the id. The Indian, or the white become Indian, represents uncultured man giving free reign to his animal passions, and it is terrifying. It can also, howeverRead MoreSymbolism In The Masque Of The Red Death708 Words   |  3 Pagestry to escape death, it still happens. The Prince had tried to get the corpse like figure out of his party, and not to cause him death by fighting him back. After confronting the figure, â€Å"He bore aloft a drawn dagger, and had approached, in rapid impetuosity, to within three or four feet of the retreating figure, when the latter, having attained the extremity of the velvet apartment, turned suddenly and confronted his pursuer. There was a sharp cry --and the dagger dropped gleaming upon the sable carpetRead MoreEssay about Catharine Maria Sedgewicks Hope Leslie866 Words   |  4 Pagessuperiority of males. Hope portrays behaviors and attitudes common in a woman today. Hope is capable of thinking for herself, is courageous, independent, and aggressive. Sir Philip Gardner describes Hope as having â€Å"a generous rashness, a thoughtless impetuosity, a fearlessness of the†¦ dictators that surround her, and a noble contempt of fear† (211). In comparison to Esther Downing, Hope is the antithesis of what a young Puritan woman should be, and in turn, Hope gains a great deal of respect from the readersRead MoreThe Theme of Death in Romeo and Juliet921 Words   |  4 Pagesdecides to poison himself at the moment he is apprised of Juliet’s death. He does not question her death or even hesitates a brief second to consider a life without her although he only knew her for three days. The friar chides Romeo’s unbridled impetuosity when he says, â€Å"They stumble that run fast.† Moving on, Shakespeare kills the star-crossed lovers to reinforce the intensity of their love. This ending that only fits tragedies, hints at the unworldliness of this love. Their love is not understoodRead MoreA New York Police Department983 Words   |  4 Pagesprice tag of their opposition was the safety of New York’s people. By placing the protests of the mayor in one mental box and the safety of their constituents in another, the NYPD compromised the vow integral to their career. Ultimately, by their impetuosity, the police were instrumental in one of two outcomes amongst New York’s population: mistrust of the mayor or mistrust of the police department. Neither is conducive to a safe and civically engaged city. In conclusion, restoring conditions to normalcyRead MoreTeamwork and Motivation828 Words   |  4 Pages When you think about it, his effort in combination with employees doing volunteer service for San Franciscos Habitat For Humanity is a great way to spur motivation. Many assume that simply throwing money at employees will give them the raw impetuosity to perform better, faster, longer, and happily working fervently all for the sake of the almighty dollar. When asked why employees need more than money to be motivated such as showing thanks and praise Bob Nelson, author of the bestseller â€Å"1001

Getting the Best Ielts Essay Samples of Band 7 Pdf

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Bio Lab Report Free Essays

Biology lab report Estimating glucose concentration in solution Done by : Hasan Al-jowder 11E KC Introduction: The purple pink solution of potassium permanganate (MnO4 -) is reduced by glucose to a colourless solution of manganese ions (Mn2+). MnO4- + 8H+ + 5e- Mn2+ + 4H2O The time taken for the loss of colour from a standardised solution of permanganate is directly related to the concentration of glucose present in solution. Research question: How does the different concentration of glucose solution which have the same volume affects the time taken for the pink color of the potassium permanganate to turn into colorless? Hypothesis: The higher the concentration of glucose, the shorter time taken for the reduction of potassium permanganate, hence resulting in shorter time taken for the pink color of potassium permanganate to decolorize. We will write a custom essay sample on Bio Lab Report or any similar topic only for you Order Now This is because the concentration of glucose molecules in glucose solution is high thus more electron are donated to the permanganate within a constant period. Variables: †¢Independent: The concentration of the glucose solution †¢Dependent: The time taken for the pink color of the potassium permanganate to turn into colorless †¢Controlled: Volume/Units Materials list : †¢Eye protection †¢A timer †¢a glass rod †¢a boiling tube and a rack †¢3 beakers †¢3 syringes †¢6 labels †¢glucose solutions (2%,4%,6%,8%,10%,12%) †¢3 solution of unknown glucose concentration (A,B,C) †¢sulphuric acid †¢potassium permanganate Procedure: 1. label your three beakers sulphuric acid PP- for potassium permanganate G- for glucose 2. abel your syringes in the same way. 3. add about 25 cm3 of sulphuric acid and potassium permanganate to the beakers – this will be your stock to use throughout the experiment. note which glucose solution you are testing first. 4. use the correct syringe to place 10 cm3 of the first glucose solution into the boiling tube. 5. add 5 cm3 of sulphuric acid. 6. add 2 cm3 of potassium permanganate and start the clock. 7. stir with a stirring rod and stop the clock as soon as the pink color disappears. 8. record the time and the glucose solution used. . rinse the syringe you used for the glucose solution. 10. repeat using the other glucose solution. 11. repeat for a solution of unknown concentration (A B or C) 12. record your own results and if possible class average results in a table. Table: Glucose concentrationsTime taken to change color 2%1 minute 41 seconds 4%1 minute 13 seconds 6%45 seconds 8%41 seconds 10%35 seconds 12%32 seconds Unknown A48 seconds Unknown B1 minute 13 seconds Unknown C2 minute 56 seconds Graph : conclusion: Evaluation: sources of error= the temperature of the water was not the same with all the concentrations †¢minor inaccuracy in watching the exact time that the color changes absolutely †¢inaccuracy in using the stop watch Reference: https://www. google. com. bh/#hl=ensclient=psy-abq=estimating+glucose+concen tration+in+solution+lab+report+hypothesisoq=estimating+glucose+concentration+in+solution+lab+report+hypothesisgs_l=hp. 3†¦ 3351. 18905. 1. 19921. 11. 11. 0. 0. 0. 0. 421. 2839. 2-10j0j1. 11. 0†¦ 0. 0†¦ 1c. 1. 7. psy-ab. csPQdc8wzZApbx=1bav=on. 2,or. r_cp. r_qf. bvm=bv. 44011176,d. d2kfp=34c3fbe89c60be0dbiw=1366bih=629 How to cite Bio Lab Report, Essay examples Bio Lab Report Free Essays Ye Tao BISC220-13155 The Effect of Temperature on the Digestion of Starch by Activity of Enzyme ? -Amylase: Observation of Rate of Starch Disappearance through Iodine Test Introduction An enzyme is a type of protein that, through its own structure including hydrogen bonds, acts like a biological catalyst and is able to accelerate the biochemical reaction rate by lowering the activation energy of the whole process, without which cells could hardly practice any physiological functions within human bodies (Sizer, 1943). Found in the saliva and pancreatic secretions of animals including human beings as well as the plant seeds, bacteria and fungi (Siddiqui et al. , 2010), the enzyme ? -amylase that was studied during the experiment has significant impact on the hydrolysis of starch. We will write a custom essay sample on Bio Lab Report or any similar topic only for you Order Now By breaking the alpha, 1-4 glycosidic linkages in the carbohydrates, amylase hydrolyzes the starch, a polysaccharides that is stored in plants and cannot be directly digested by animal cells, into maltose, a disaccharide that later generate two units of glucose to undergo metabolisms and provides necessary energy (Slaughter et al. , 2001). The enzymatic activity of ? amylase is facilitated by calcium and chloride ions during the hydrolysis (Marini, 2006 and Siddiqui et al. , 2010). The complete digestion of starch and formation of maltose and glucose can be examined through the iodine test when I2KI reagent is added into the solution and remains brown instead of turning into dark blue, marking that all the molecules of starch have been fully hydrolyzed (Hanes, 1932). While amylase effectively activates the hydrolysis of starch, the efficiency of the catalytic process is influenced by several factors including temperature, pH level and the concentration of the substrates etc. In this experiment, as the ? -amylase is a type of protein, the efficiency of enzyme is highly related to its hydrogen bonds which are affected by the temperature. Though the enzyme is collected from the porcine pancreas, due to its structural similarities to amylase in human bodies, the behaviors of two amylases should resemble each other. Given that under extreme temperature enzymes will be denatured and unable to function and the constant temperature of pigs is around 39 °C, the hypothesis of this experiment is that at 37 °C amylase will catalyze the hydrolysis with the highest speed, followed by amylase at 22 °C. Amylase at 0 °C will react extremely slowly due to the crystallization of hydrogen bonds and at100 °C, amylase will lose its function since it will be denatured. Materials and Methods Four test tubes were marked from A1 to A4. Then, 2mL of 1% starch solution from Carolina Biological Supply Company, 4mL of deionized water and 1mL of 6. 8 hydrion buffer from VWR International/ Micro Essential Laboratories were added into each tube. Another four test tubes were also labeled from B1 to B4 and added 1mL of 1% ? -amylase from porcine pancreas from Sigma Aldrich. Eight tubes were paired according to the same number (A1and B1 etc. and assigned to environments at different temperature: Tube A1 and B1 were placed into a water bath at 100 °C; Tube A2 and B2 were placed into a water bath at 37 °C; Tube A3 and B3were placed on the tube rack (at about 22 °C); Tube A4 and B4 were placed into an ice bath at 0 °C. All test tubes were kept at different temperatures for 10 minutes. Meanwhil e, a control group of starch solution was prepared without amylase. (Bio Lab Manual, 2013) At the same time, a test plate was added 2 drops of I2KI reagent (1% Iodine and 2% KI) from Carolina Biological Supply Company per well. After 10 minutes, when test tubes were still in the original environments, solutions in Tube A1 with B1 were mixed and a timer was started. At each 30-second-inteval, a drop of the mixture was released into the well on the test plate until the solution in the plate did not change into dark blue and remained brown, indicating the end of the reaction by showing no presence of starch and presence of maltose and glucose. The experiment was repeated on the tubes at other temperatures. Slow reactions were observed and recorded up to 420 seconds due to time limit. Data were pooled from each bench and average and standard deviation were calculated. The data of the control group were also obtained. Results Figure 1 The test plate of iodine test under different temperature. Dark blue wells indicated the presence of starch while the brown ones indicate the completion of starch hydrolysis. (Upper half: 37 °C; Bottom Half: 0 °C) The rate of reaction was fastest at 37 °C (n=4, mean=212. 5s, SD=66. 1s) while the rate of reaction at 22 °C was only slightly less than it (n=4, mean=217. 5s, SD=61. 8s). Though the previous two groups underwent starch hydrolysis relatively fast, the tubes at 100 °C and 0 °C reacted so slowly that it took more than 420 seconds for their completions (time was only recorded before 420s). There was no hydrolysis in the control group. The time of the reaction completions as the function of different temperatures was shown in the table and graph below. The Effects of Temperature| Temperature (? )| Time of Starch Disappearance(s)| | Bench 1| Bench 2| Bench 3| Bench 4| Mean| SD| Control| 420| 420| 420| 420| 420| 0| 0| 420| 420| 420| 420| 420| 0| 2| 210| 210| 300| 150 | 217. 5| 61. 84658| 37| 270| 180| 265| 135 | 212. 5| 66. 14378| 100| 420| 420| 420| 420| 420| 0| Table 1. Time of Starch Disappearance with Porcine Pancreatic ? -Amylase at Different Temperatures (Time was recorded up to 420s). Graph 1. Time of 1% Starch Disappearance with Porcine Pancreatic ? -Amylase as the Function of Different Temperature Discussion and Conclusion As the data obtained f rom the experiment, all parts of the original hypothesis were confirmed by the result. Temperature plays an important role during the activation of ? amylase that only during certain temperature range can the enzyme function properly to catalyze biochemical reactions. On one hand, at 37 °C the amylase showed the greatest efficiency in catalyze the hydrolysis of starch. At the same time, the amylase also showed considerable catalytic efficiency at 22 °C. But on the other hand, when temperature dropped or rose to extreme value such as 0 °C or 100 °C, the function of amylase was inhibited and such biochemical transformation of substances could hardly process. This result obtained is consistent with the reality that during normal body temperature, regardless of pig or human beings, mylase is able to catalyze the hydrolysis of starch with the highest speed. Therefore, we may conclude that even taken out from where it was found, the amylase still maintain its original biochemical properties. The experiment did not show the biochemical mechanism of the modification from temperature to amylase activity. However, according to the scientific research done by other scientists, a temperature that ranges from 20-50 °C could make structures including weak interactions, hydrogen bonds and disulfide bridge exist within and stabilize the enzyme molecules to maximize their activities. At the water freezing point (0 °C), the hydrogen bonds are crystallized and become more constrained and less flexible while at high temperature like 100 °C, the bonds consume certain energy to become unstable and fragile, neither of which contribute to the proper functions of amylase (D’Amico et al. , 2003). While the result of the experiment perfectly matched what was expected, however, such conclusion could only be made at qualitative phase and it is obvious that weakness of this experiment existed and prevented the further understanding of amylase at quantitative level. Several modifications to the current experimental designs could be made to enhance its accuracy. Firstly, the sample size needs to be expanded. With only four groups, the data was so limited. As a result, the data had great standard deviations of more than 60 seconds. Simultaneously, the random errors were at high possibility to take place. Therefore, with the increase of sample size, the data can be more accurate and stabilized and potential random errors could be discarded to ensure the coherence of the data. Furthermore, even though neither the test tube at 0 °C and 100 °C enabled the completions of starch hydrolysis, the reasons of the two groups are not the same. Therefore, in order to detect the reason of the loss of catalytic ability, follow-up experiments need to be practiced. A possible design might be to change the test tubes from 0 °C or 100 °C into 37 °C for another 10 minutes then redo the iodine test to see this time whether the amylase can function well or not. This manipulation will convince the hypothesis about the reason behind the superficial phenomena that was shown in the original experiments and present the difference between denaturing of protein and crystallization of hydrogen bonds. It is important for people to thoroughly understand the amylase activity and all the factors that are potentially capable of influencing such activity through which people can understand how human bodies work as well as the physiology of other organisms. At the same time, the research in amylase activity could potentially bring economical benefits to industrialized starch products manufacturing. And finally, the amylase activity has shown its significance in medical clinical trial that diseases including hyperamylasemia  or hyperamylasuria are proven to be related to the amylase in the human serum and urines (Salt 2nd, 1976). References General Biology BISC 220 Laboratory Manual. (2013). University of Southern California. Lab2, pp33-36. D’Amico, S. , Gerday, C. , ; Feller, G. (2003). Temperature adaptation of proteins: engineering mesophilic-like activity and stability in a cold-adapted ? -amylase. Journal of molecular biology,  332(5), 981-988. Hanes, C. S. (1932). Studies on plant amylases: The effect of starch concentration upon the velocity of hydrolysis by the amylase of germinated barley. Biochemical Journal,  26(5), 1406. Marini, I. (2005). Discovering an accessible enzyme: Salivary amylase: Prima digestio fit in ore: A didactic approach for high school students. Biochemistry and Molecular Biology Education,  33(2), 112-116. Salt 2nd, W. B. , ; Schenker, S. T. E. V. E. N. (1976). Amylase–its clinical significance: a review of the literature. Medicine,  55(4), 269. Siddiqui, Z. S. , Khan, M. A. 2011). The role of enzyme amylase in two germinating seed morphs of Halopyrum mucronatum (L. ) Stapf. in saline and non-saline environment. Acta Physiologiae Plantarum,  33(4), 1185-1197. Sizer, I. W. (2006). Effects of temperature on enzyme kinetics. Advances in Enzymology and Related Areas of Molecular Biology, Volume 3, 35-62. Slaughter, S. L. , Ellis, P. R. , Butterworth, P. J. (2001). An investigation of the action of porcine pancreatic ? -amylase on native and gelatinised starches. Biochimica et Biophysica Acta (BBA)-General Subjects,  1525(1), 29-36. How to cite Bio Lab Report, Essay examples