UV Visible Spectrophotometry and Solution Absorption

UV Visible Spectrophotometry and Solution Absorption All molecules absorb light at certain wavelengths.   The absorption of light by a solution may be used to determine the concentration of a solute or a mixture of solutes in solution. The Beer-Lambert law refers to the linear relationship between absorbance (A), and concentration (C) of an absorbing species. According to the two fundamental principals that govern the absorption of light by a solution, the absorption of light passing through a solution is exponentially related to the number of molecules of the absorbing solute, and thus the solute concentration, and the length of the absorbing solution. These principals are combined, and when working in concentration units of molarity, the Beer-Lambert law is as follows: For part A of this experiment the ÃŽÂ µ value at the à ¯Ã‚ Ã‚ ¬max for Vitamin B12 was determined by measuring the absorbance of a known concentration of Vitamin B12 and by using the above Beer-Lambert formula. Vitamin B12 is a compound of significant nutritional and clinical importance. Assaying and understanding absorption of vitamin B12 helps with diagnosis of defects in humans that can lead to hematological and neurological complications. For part B of this experiment chlorophyll concentration of a leaf extract was calculated. In context to the experiment, eukaryotic green plants and algae, and prokaryotic cyanobacteria contain chloroplasts which have several pigment types, the most abundant of these being chlorophyll a. Green and blue-green coloured chlorophyll a absorbs maximum light energy at the photosynthetic reaction centre (during the light reaction of photosynthesis) at wavelengths in the blue (à ¯Ã‚ Ã‚ ¬max 420 nm) and red (à ¯Ã‚ Ã‚ ¬max 663 nm ) regions of the visible spectrum. The green-yellow coloured chlorophyll b is also present in all green plants and has an absorption spectrum (red à ¯Ã‚ Ã‚ ¬max 645 nm and blue à ¯Ã‚ Ã‚ ¬max 435 nm) slightly different from chlorophyll a. Normally the ratio of chlorophyll a:b is 3:1. As with most biological molecules chlorophyll is synthesised by biochemical pathways, and one intermediate molecule in the synthesis pathway is protochlorophyllide (à ¯Ã‚ Ã‚ ¬max 626 nm) which is eventually converted into chlorophylls a and b. The amounts of chlorophyll and other pigments in plants can be determined using a spectrophotometer following extraction with various organic solvents. Based on the Beer-Lambert Law and a knowledge of absorption coefficients of pigments dissolved in particular solvents, equations have been derived to directly determine the concentrations of common pigments following extraction by measurement of the absorbance (A) of the solution at a given wavelength (à ¯Ã‚ Ã‚ ¬max) in a cuvette.   For part 3 of the experiment, protein concentration was determined by use of UV and Visible spectrophotometry, and Construction of a Standard Graph.   The estimation of protein concentration is an important measurement in biological sciences. For pure samples of proteins absorbance measurements at 280 nm can be used to directly determine protein concentration; all proteins absorb in this region of the spectrum due to their aromatic amino acid residues (tyrosine, tryptophan and phenylalanine).   For protein mixtures, very dilute solutions, or for proteins with interfering chromophores, colourimetric methods must be used. These involve subjecting a pure protein standard of known concentration to a colourimetric reaction, and measuring the absorbance of the coloured end product. The sample protein of unknown concentration is subject to the same colourimetric reaction. The concentration of the sample protein can be read directly from a standard curve.   The Lowry assay involves the production of a blue (phosphomolybdate-tungstate) chromophore, from a copper-protein complex.   In this part of the practical, Lowry and direct absorbance methods were compared for the determination of the concentration of lysozyme in solution. The first of the methods makes use of a ÃŽÂ »max in the UV part of the spectrum and the other in the visible part of the spectrum.   Aims   To competently use a spectrophotometer and accociated cuvettes (cells) To relate absorbance of a solution to concentration using the Beer-Lambert law To determine the molar absorption (extinction) coefficient of vitamin B12 and compare its value with that from a standard reference table. To calculate the chlorophyll concentration in a leaf extract using absorbance values at defined wavelengths and a formula applicable to the solvent extraction medium. To measure protein concentration using direct absorbance and, following construction of a calibration curve, by a colourimetric method. Methods Part A To begin the experiment, the spectrophotomer was calibrated in accordance to the information given in the instrumentation booklet (p. 35, viii). Using distilled water in a plastic cuvette at a wavelength of 550 nm the spectrometer was then placed on zero. Using the provided Aqueous Vitamin B12 (cyanocobalamin) solution at a stock concentration of 0.15 g dm-3 (relative molecular mass = 1.355 x 103 i.e. 1,355 Daltons ), The A value was measured and recorded at ÃŽÂ »max at 550 nm. The A value was Placed on the results sheet. The vitamin B12 solution concentration was converted from g dm -3 to mol dm-3 and then using this data the ÃŽÂ µ value for Vitamin B12 was calculated (see calculations). Part B For the second part of the experiment a sample of pigments extracted from dandelion leaves homogenized in an aqueous acetone extraction medium (80%) was provided. A clear pigment solution was needed for the test and so a check was carried out to ensure that there was no plant debris that may have interfered with light passage before the absorbance of the sample was measured. Using a Pasteur pipette, the clear extract was transferred into a clean quartz cuvette. The spectrophotometer was placed on zero using a quartz cuvette filled with an aqueous acetone mixture (80%) set at a à ¯Ã‚ Ã‚ ¬max wavelength of 663 nm and the absorbance of the pigment solution was measured at 663 nm. The spectrophotometer was again placed on zero using the acetone solution (80%), however it was set at a à ¯Ã‚ Ã‚ ¬max wavelength of 645 nm before the absorbance of the pigment solution was measured. The spectrometer was placed on zero for a third time and set at à ¯Ã‚ Ã‚ ¬max wavelength of 626 nm. The absorbance of the pigment solution was again measured and all three sets of data were recorded. Part C (a) Direct absorbance A quartz cuvette was filled to the level with H20 and used as a standard to set the spectrophotometer at zero. Using another quartz cuvette the A value of the lysozyme solution of unknown concentration was measured at a ÃŽÂ »max of 280 nm. The value obtained was recorded. Having measured the A280 value of the unknown lysozyme sample, the concentration of lysozyme was calculated taking into consideration that ÃŽÂ µ280 of lysozyme = 3.65 x 104 dm3 mol-1 cm-1 and using the Beer-Lambert Law. The concentration of the lysozyme sample was then changed from mol dm-3 to à ¯Ã‚ Ã‚ ­gcm-3. (b) Colourimetric Lowry Assay (Preparation and Use of a Standard Curve) Using a stock reference standard BSA solution containing 250 à ¯Ã‚ Ã‚ ­g cm-3 protein, a series of dilutions of the stock were prepared accurately, as per the table below: Tube No: 1 2 3 4 5 6 7 8 BSA stock (cm3) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0 H2O (cm3) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.0 Note that the dilution factors for each tube were used to enable calculations for final concentrations of BSA in tubes 1- 8 inclusive (see calculations). These values are then used to plot a standard curve. Standard solution (1.0 cm3) prepared in the above table was placed in 8 clean, dry test tubes. unknown lysozome sample (1cm3) was placed into test tube 9, and H2O (1.0 cm3) was placed in test tube 10 as a water/reagent blank control. A solution of Lowry C (alkaline copper reagent) was made up by mixing Lowry B1 (0.5 cm3) with Lowry B2 (0.5 cm3) and lowry A (50 cm3). A solution of lowry D (Folin Ciocalteus phenol reagent) was then made up by diluting Folin reagent (5 cm3) with distilled H2O (10 cm3). Lowry C reagent (5.0 cm3) was added to all ten test tubes. The solution was mixed and left for 10 minutes. Lowry D reagent (1.0 cm3 ) was then added to each test tube and mixed well. All tubes were left for 30 minutes at standard temperature (37oc) for reaction and colour development to occur, after which time the test tube contents were thoroughly mixed. For test tubes 1-9, the A value at à ¯Ã‚ Ã‚ ¬max 750 nm was measured. Test tube 10 was not measured as it was used as a H2O/reagent blank to zero the spectrophotometer. Calculations Part A Due to the fact that a known amount of solute has to be dissolved in a given volume of solvent to obtain a solution of the required concentration, the number of moles of the solid can be calculated from the following equation: n = Mass of solute Relative molecular mass To convert the Aqueous Vitamin B12 (cyanocobalamin) solution from g dm -3 to mol dm-3 one must consider that the stock concentration is 0.15 g dm-3, and the relative molecular mass of Vitamin B12 is 1.355 x 103 . 0.15 / 1.355 x 103 = 0.11 x 103 To find the ÃŽÂ µ value (wavelength absorption coefficient) of vitamin B12 the Beer-Lambert law must be applied: A= 0.827 L= 1cm C= 0.11 x 103 dm3 mol-1 cm-1 at ÃŽÂ »max of 550 nm ÃŽÂ µ = unknown As A= ÃŽÂ µLC, the equation can be rearranged as follows to make ÃŽÂ µ the subject: ÃŽÂ µ = A/C Therefore: ÃŽÂ µ = 0.827/0.11 x 103 = 7.51 x 103 Part B Chlorophyll Concentration determination The following formula was used to calculate the concentration of pigment in the extract. Chlorophyll a = 12.67A663 2.65A645 0.29A626 Chlorophyll b = 23.6A645 4.23A663 0.33A626 Protochlorophyllide = 29.6A626 3.99A663 6.76A645 The absorbance (A) is the respective wavelengths obtained directly from the spectrophotometer with the use of a 1cm light path length cuvette. Chlorophyll a = (12.67 x 0.934) (2.65 x 0.390) (0.29 x 0.321) = 10.71 ug cm-3. Chlorophyll b = (23.6 x 0.934) (4.23 x 0.390) (0.33 x 0.321) = 20.29 ug cm-3. Protochlorophyllide = (29.6 x 0.934) (3.99 x 0.390) (6.76 x 0.321) = 23.92 ug cm-3. Part C (a) Direct absorbance Concentration of lysozyme was calculated using the Beer-Lambert law as follows: A = 0.177 ÃŽÂ µ = 3.65 x 104 dm3 mol-1 cm -1 L = 1cm C = Unknown The Beer-Lambert law can be rearranged, making C the subject of the equation. Therefore the value of C can be calculated as: C = A / ÃŽÂ µ C = 0.177 / 3.65 x 104 = 4.84 x 10-6 mol dm-3   The concentration of the lysozyme sample was then changed from mol dm-3 to à ¯Ã‚ Ã‚ ­gcm-3 Using the following formula: n= M / RMM 14.31 x 103 x 4.84 x 10-6 = 0.069g To change this from g to à ¯Ã‚ Ã‚ ­g it must be multiplied by 1000,000 as follows: 0.069 x 1000,000 = 69000 To then change this calculation from dm-3 to cm-3 it must be divided by 1000 as follows: 69000 / 1000 = 69 à ¯Ã‚ Ã‚ ­g cm-3 (b). Preparation and Use of a Standard Curve for Lowry Assay: Concentration (à ¯Ã‚ Ã‚ ­g cm-3) was calculated using the below figures: Tube No: 1 2 3 4 5 6 7 8 BSA stock (cm3) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0 H2O (cm3) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.0 Test tube 1. BSA stock (cm3) = 1.0 H2O (cm3) = 4.0 1.0 + 4.0 = 5 1.0 / 5 = 0.2 0.2 x 250 = 50 Test tube 2. BSA stock (cm3) = 1.5 H2O (cm3) = 3.5 1.5 + 3.5 = 5 1.5/5 = 0.3 0.3 x 250 = 75 Test tube 3. BSA stock (cm3) = 2.0 H2O (cm3) = 3.0 2.0 + 3.0 = 5 2.0 / 5 = 0.4 0.4 x 250 = 100 Test tube 4. BSA stock (cm3) = 2.5 H2O (cm3) = 2.5 2.5 + 2.5 = 5 2.5 / 5 = 0.5 0.5 x 250 = 125 Test tube 5. BSA stock (cm3) = 3.0 H2O (cm3) = 2.0 3.0 + 2.0 = 5 4.0 / 5 = 0.6 0.6 x 250 = 150 Test tube 6. BSA stock (cm3) = 3.5 H2O (cm3) = 1.5 3.5 + 1.5 = 5 3.5 / 5 = 0.7 0.7 x 250 = 175 Test tube 7. BSA stock (cm3) = 4.0 H2O (cm3) = 1.0 4.0 + 1.0 = 5 5.0 / 5 = 0.8 0.8 x 250 = 200 Test tube 8. BSA stock (cm3) = 5.0 H2O (cm3) = 0.0 5.0 + 0.0 = 5 5.0 / 5 = 1 1 x 250 = 250 Results 1. Molar absorption coefficient of vitamin B12: Absorbance reading at ÃŽÂ »max of 550nm (A550nm) 0.827 2. Absorption Pigment type A Value Absorption Concentration Chlorophyll a A663nm 0.934 10.71 Chlorophyll b A645nm 0.390 20.29 Protochlorophyllide A626nm 0.321 23.92 Fig. 1. a table showing the A value of three different pigment types found in a leaf extraction, and the measured absorbance and calculated concentration of each. 3. Lysozyme Concentration Determination: (a) Direct absorbance reading at ÃŽÂ »max of 280 nm (A280nm) 0.177 (b). Preparation and Use of a Standard Curve for Lowry Assay: Discussion Part A A). Using the data collected, the experimental the ÃŽÂ µ value (dm3 mol-1 cm-1) calculated during this experiment was compared to that of an ÃŽÂ µ value obtained from  commercial standard references data. ÃŽÂ »(nm) ÃŽÂ µ(dm3 mol-1 cm-1) Standard ÃŽÂ µ value 550nm 8.55 x 103 Experimental ÃŽÂ µ value 550nm 7.51 x 103 Fig. 4. a table to show a comparison between standard and experimental ÃŽÂ µ values. As the above data indicates, the experimental ÃŽÂ µ value obtained during this experiment differs from that of the standard ÃŽÂ µ value. B). Other than human and experimental errors, one possibility that could explain the differences in the ÃŽÂ µ values is that to a certain degree different spectrophotometers in the laboratory give different readings. If the standard ÃŽÂ µ value was recorded using a different spectrophotometer this could cause anomalies within the results. A second possibility is that the solution used to find the experimental ÃŽÂ µ value was not at a stock concentration of exactly 0.15 g. This would affect the calculations and hence a different result would be obtained to that of the standard ÃŽÂ µ value. Part B 1(a).The % of chlorophyll a, chlorophyll b and protochlorophyllide in the leaf extract can be calculated in the following way: chlorophyll a concentration = 10.71 ug cm-3 chlorophyll b concentration = 20.29 ug cm-3 protochlorophyllide concentration = 23.92 ug cm-3 10.71 + 20.29 + 23.92 = 54.92 Percentage of chlorophyll a = 10.71/54.92 x 100 = 19.5% Percentage of chlorophyll b = 20.29/54.92 x 100 = 36.9% Percentage of protochlorophyllide = 23.92/54.92 x100 = 43.6% 1(b).It can be seen from the above percentages that 43.6% of the leaf extract is composed of protochlorophyllide. This is the largest percentage present within the leaf extract and therefore it can be considered as the predominant pigment type. 2(a). The percentages obtained can also be used to calculate the ratio of chlorophyll a:b in the leaf extract. In the case of this experiment the ratio of chlorophyll a:b in the leaf extract was 2:1. 2(b). The determined value to be expected when calculating the ratio of chlorophyll a:b in the leaf extract was 3:1. One would expect this as there are three pigments in the leaf extract, that ideally should contribute evenly. However, The results from this experiment vary from the standard data as they show a ratio of 2:1 between chlorophyll a and b. The most probable reason for this variation is not due to anomalies in results or calculations, but the fact that not all leaf extracts will contain the standard amount of pigments. In some cases pigments may be present in a higher percentage of one than the other, as is this experiment where protochlorophyllide was the predominant pigment type. 3). Although the above ratio is only dealing with percentages of chlorophyll a and b present in the leaf extract, one must consider that the presence of protochlorophyllide must be allowed for in the formulae and hence in the calculations. This is because there are three pigment types involved in the leaf extract and so one must consider that the ratio of the whole leaf extract is actually 3:2:1 where the ratio of chlorophyll a:b is 2:1. 4). The use of a formula related to a given extraction solvent is a convenient method for determining the concentration of chlorophyll. However, making use of the Beer-Lambert Law the concentration of chlorophyll could also be found by preparation and use of a standard curve. Part C Determination of Protein Concentration by UV and Visible Spectrophotometry, Construction of a Standard Graph Proteins have aromatic side chains such as tryptophan tyrosine and phenylalanine which absorb light at 280nm. The Lowry method is based upon a combination of the biuret method and the oxidation of tyrosine and tryptophan residues. The biuret reaction involves the binding of Cu2+ under alkaline conditions to nitrogen found in the peptide bonds of proteins. This reaction gives off a deep blue colour. The folin reagent contains phosphomolybdotungstate acids which are reduced to tyrosine, tryptophan and polar amino acids. This creates an intense blue-green colour. (a). The data collected was used to create a graph, plotting a standard curve of A (Y axis) against BSA concentration (X axis) in à ¯Ã‚ Ã‚ ­g cm-3 (See fig.3). This graph, shown in fig.3., was effectively constructed assuming that the relationship between absorbance (A) and concentration (C) must be linear to satisfy the Beer-Lambert law. However, the Beer-Lambert relationship between absorption and concentration deviates from lineariy in the case of more concentrated solutions. Linear BSA standard curves are only obtained at low protein concentration and so therefore to decrease possible anomilies in the results, timing of both residue addition and mixing were crucial. Using the A value from test tube 9, it was possible to use the graph to determine the concentration of the unknown lysozyme sample in à ¯Ã‚ Ã‚ ­g cm-3. Results from the graph show that. (b) By examining the lysozyme concentration results obtained (in à ¯Ã‚ Ã‚ ­g cm-3), it is possible to make a comparison between the results for the colourimetric assay and the direct absorption technique. Results show that Lysozyme concentration for colormetric assay were (m/rmm thing) Lysozyme concentration results for direct absorbance technique were..(graph) These results are same/different. Due to the fact that different proteins have widely varying characteristics, there may be considerable errors within the data. With the colormetric assay any non-protein component of the solution that absorbs UV light could interfere with the assay, resulting in the production of colour by substances other than the analyte of interest. This would cause the results to vary from that of the direct absorbance technique. (c). For this experiment three different methods were used for concentration determination, each of which had different strengths and weaknesses with respect to their sensitivity, accuracy and convenience. The first of these methods was the use of a formula, to determine chlorophyll concentration. Using a formula gives a very accurate theoretical result but it is not particularly convenient as for calculations to be correct it can take a great deal of time and effort. Obviously with such calculations, they are not sensitive as there is no outside interference to affect results. Direct absorbance is not as sensitive as the colormetric method, but as it requires the use of a spectrophotometer, it is an accurate assay method. This also makes the method relatively convenient for determining the concentration of lysozyme present in a given solution as changes in absorbance of the lysozyme could be clearly seen and recorded using the spectrophotometer at a particular wavelength. The colourimetric method was also used to determine the concentration of lysozyme during this experiment. One benefit of using the Colormetric method is that it is extremely sensitive (down to a protein content of 20ug ml-1) and it is also moderately constant from one protein to another. However, with respect to accuracy, this method is subject to interference from a wide range of non-protein substances including many organic buffers. The choice of an appropriate standard is important as the intesnsity of colour produced for a particular protein is dependant on the number of aromatic proteins. As different proteins have a different number of aromatic residues, the Lowry assay is considered more of a qualitative measure of protein content more than quantitative method of determining protein concentraion. This method is not as convenient as the direct absorbance method in that it takes a lot longer to perform and there is a higher frequency of anomalies that must be accounted for. (d). The measurement of protein levels is of significant diagnostic importance in both clinical and veterinary medicine. In clinical medicine there are a wide variety of biomedical tests involving the measurement of protein levels, such as the detection of abnormal protein levels in cerebrospinal fluid (CSF), suggesting that there is an abnormal process occurring in the central nervous system. Protein levels in urine samples are tested to monitor and evaluate kidney function, and essentially to detect and diagnose kidney damage and disease at and early stage. Serum protein tests are also important as they concern measurement of protein levels of albumin and globulin in the blood. Such tests are also important in veterinary medicine. According to reports from Cornell universities college of veterinary medicine, protein tests have been developed to accurately indicate canine liver failure caused by the toxin aflatoxin. (e). Another way in which protein concentration can be measured, other than by the use of a formula or a spectrophotometer is gel electrophoreses. This technique uses charged protein molecules to separate physical properties, as they are forced through a gel by an electrical current.

The Viking Essay -- History Historical Vikings Essays

The Vikings Viking History The Vikings were a group of Scandinavian raiders that were around from about the 8th century to the 11th. They mainly attacked the British Islands , the Frankish empire, England, but they also plundered places such as the Iberian peninsula and northern Africa. Vikings did not always settle into the places that they found, for instance after exploring North America they left the place never to return again. Even so, after landing on Greenland they colonized themselves there, and ancestors of the Vikings still live there today. So now that you know a little about the history of the Vikings lets go into detail about the specifics of the Viking age. (Peter Sawyer, Oxford Ill. History of the Vikings p. 1-19) On the Holy Isle of Lindisfarne, which is located between England and Scotland Irish monks had built a monastery; there they wrote many holy and beautiful books, called the Lindisfarne Gospels. These monks were peaceful people, wouldn’t hurt a fly, pity they were chosen by the Vikings, on the 8th of June in 793 to be the first major victim of one of their raids. Their arrival was seen first far off, they could see dragon head carvings on their well crafted ships slowly coming closer and closer to the shore. As soon as they got out of their boats the Vikings poured onto land ripping off the monk’s clothing and tearing their bodies apart with their sharp swords, and sometimes drowned them. Viking raiders tipped over the cross of Bishop Ethelwold, which was built out of stone. Before they left that hot day the Vikings had taken all of the monk’s treasure, set each building aflame, and killed the monk’s cattle to feed themselves on. Then, in an instant they go t into their ships and left. This was the first major Viking attack, as you can see it was pretty gruesome, but they were just getting started. The next summer there were several places on the British North Sea coast attacked. After 799 the Vikings managed some raids on Friskan-Frankish coast, forcing them to set up a coastal watch to warn citizens of the area. (Oxenstierna, Eric, The Norsemen p. 49-74) The Vikings in the 8th century mainly centered in places along the Dutch coast, but the Norwegian Vikings were settled in the Orkney and Shetland islands. Throughout the 9th century the Viking’s expanded their empire to engulf Ireland, and Northwestern England. In t... ... a mixture of clay and dug them to make them draff and weatherproof. Vikings lived with their animals, the animals kept their houses warm, and it secured them from being stolen, because cattle was very valuable. Women did all the work around the house while men worked in the fields, and on the farms, of coarse they also fished and hunted when that was needed. There was not much wood in Sweden and Norway, except in the south where softwoods like conifers were used for building. They also provided for the long straight horizontal timbers that served as the joints. Viking Relationships The military leaders of the Vikings were Earls (called Jarls) and sometimes even priests. The freeman (bonds) were the farmers and merchants. The slaves (thralls) worked on other people’s farms to pay for their share in profits from raids. (Purves, pg. 10) Viking family life did not include much free time for personal enjoyment. They ate slept and worked in one room of their house. The 2 most important objects in the room were the firepit and the weaving loom. There were no cupboards, tier belongings were hung on the wall or in chests that were at the edge of the room. (Gibson, Michael pg. 18)

The other wes moore

Jodi Snyder English 101 Beth Stevens 07/18/2014 The Other West Moore Can two men with very similar backgrounds grow up to be completely different? West Moore takes us on a Journey back to his childhood as well as the childhood of a man with the same name. The author West describes how the two men, grew up Just blocks from each other, both surrounded with drugs and crime. West was a Phi Beta Kappa graduate of John Hopkins, army veteran and well renowned speaker around the world teaching people about his story. The other West Moore was spending the rest of his in prison.When West learned about the other man with the same name, room the same neighborhood and the fact he was in prison, West was intrigued. West decided he needed to find out more about this man. He started writing this West Moore in prison. Not too long after, he found himself at the prison, finally meeting the other West Moore. In the book West tells us about the conversations the other West and he had. Talking about each other's lives, the similarities and the differences resulting in the book, â€Å"The Other West Moore†.In the introduction West states that, â€Å"Our stories are obviously specific to our two lives, but I hope they will illuminate the racial inflection points in every life, the sudden moments of decision where our paths diverge and our fates are sealed. † (x') He helps us realize that all it takes is one split decision could change our life forever. That you can easily stumble down the right path, even the right one. (xiv) It all starts with two young black boys. How they both ended up fatherless and with single mothers. Them both ending up in trouble with the law at about the same age.West explores the role of the mothers' of himself and the other West. He remembers how his mother took his sisters and him to vive with their grandparents after the death of his father when he was very young. He thinks about how strict his mother and grandparents were. West remains tha nkful for that today. The incarcerated West tells the author how he followed in his brother Tony's footsteps, getting into the drug scene. He recalls how Tony tried to keep him off the mean streets of Baltimore. Tony failed. One of the final breaking points for West was when his mother flushed four thousand dollars' worth of drugs.After he confronted his mother, this is what she said. â€Å"Not only did you lie to me but you were selling drugs and keeping them in my house! Putting all of us in danger†¦ ‘ don' ever want to see it in here again. Now get out of my room. â€Å"(74) His mother Mary, was not the least bit concerned about West's dilemma. Mary had pretty much lost all hope for her son. West was in and out of school and trouble. Did he try to get out of the life that was causing him to spiral downwards? Levy, a friend of West', turned him on to the Job Corps. West told him enema, man, I am ready to try something.Anything. † (139). Soon after, he was off to the Job Corps. The authors' mom had sent him off to military school around the same time. She thought that would be the best way for him to stay UT of trouble. One of his first memories of being there was, â€Å"Get up, get up, get out of your racks, plebes! † (85). That's what was yelled at him at 5:30 in the morning. West goes on to share with us the ins and outs of his time in military school. How having that structure and discipline really changed him. This is where the author's life and the other West Moor's life start to differ.The incarcerated West graduated from the Job Corps. West describes that after his return, he ended up is several temporary part time Jobs. He thought he would never get ahead. At this point, he talks about how he ended up back in the life he tried to leave. Dealing drugs, that's the only thing he really knew about. The only way he felt he could take care of his family. He explains to the author about the time he got caught up in a Jewelry store robbery with his brother and two other men which resulted in the murder of Baltimore police officer.That was the day his life was over as he knew it. He would spend the rest of his days in prison. He still claims, â€Å"l wasn't even there that day. † (125). The author proudly tells us how he graduated from military school as a very high ranked cadet. From there he went on to be a Phi Beta Kappa graduate from John Hopkins. He elaborates on the wonderful, fulfilling life he went on to have. In the first part of this book the author reveals to us how he came to hear about the other West Moore. He had read an article with the title, â€Å"Local Graduate Named Rhodes Scholar. He realized it was about him. He then read an article on the robbery, murder and the other West Moore. West set out to find out more about this man's life and how it compares to his. Again this is the basis of this book. Why did the author feel the need to tell his story? The author wants us all to realize that you can be from the same place, with the same issues and still come out on top. That yes, there will be challenges, but if you work hard enough and are lucky enough to have the support, you can do anything.Some of most enlightening moments in the book come one of the last meetings between the author West and the incarcerated West. It had been nearly three years since West first contacted the incarcerated West. The author asks West, â€Å"Do you think we're all Just products of our environments? † (126) Too this question West answers, â€Å"l think so, or maybe products of our expectations. † (126). â€Å"We will do what others expect of us,†¦ If they expect us to go to Jail, then that's where we will end up. (126) Author West Moore does an excellent Job of showing us the lives of the two West'.His hope is that this will inspire young people. To let them know that they can be whatever they want to be. It may take work, and it may be hard, but they can do it. In the end West says, â€Å"Above all, I hope that this book can provide young people with a way to identify with the success as a possibility, and a reason to believe that a story that begins with a struggle, apathy, and the pain of loss can still have a happy ending. † (183) Works Cited Moore, West. â€Å"The Other West Moore: One Name, Two Fates†. New York: Spiegel & Grab, 2011 Print The other wes moore Jodi Snyder English 101 Beth Stevens 07/18/2014 The Other West Moore Can two men with very similar backgrounds grow up to be completely different? West Moore takes us on a Journey back to his childhood as well as the childhood of a man with the same name. The author West describes how the two men, grew up Just blocks from each other, both surrounded with drugs and crime. West was a Phi Beta Kappa graduate of John Hopkins, army veteran and well renowned speaker around the world teaching people about his story. The other West Moore was spending the rest of his in prison.When West learned about the other man with the same name, room the same neighborhood and the fact he was in prison, West was intrigued. West decided he needed to find out more about this man. He started writing this West Moore in prison. Not too long after, he found himself at the prison, finally meeting the other West Moore. In the book West tells us about the conversations the other West and he had. Talking about each other's lives, the similarities and the differences resulting in the book, â€Å"The Other West Moore†.In the introduction West states that, â€Å"Our stories are obviously specific to our two lives, but I hope they will illuminate the racial inflection points in every life, the sudden moments of decision where our paths diverge and our fates are sealed. † (x') He helps us realize that all it takes is one split decision could change our life forever. That you can easily stumble down the right path, even the right one. (xiv) It all starts with two young black boys. How they both ended up fatherless and with single mothers. Them both ending up in trouble with the law at about the same age.West explores the role of the mothers' of himself and the other West. He remembers how his mother took his sisters and him to vive with their grandparents after the death of his father when he was very young. He thinks about how strict his mother and grandparents were. West remains tha nkful for that today. The incarcerated West tells the author how he followed in his brother Tony's footsteps, getting into the drug scene. He recalls how Tony tried to keep him off the mean streets of Baltimore. Tony failed. One of the final breaking points for West was when his mother flushed four thousand dollars' worth of drugs.After he confronted his mother, this is what she said. â€Å"Not only did you lie to me but you were selling drugs and keeping them in my house! Putting all of us in danger†¦ ‘ don' ever want to see it in here again. Now get out of my room. â€Å"(74) His mother Mary, was not the least bit concerned about West's dilemma. Mary had pretty much lost all hope for her son. West was in and out of school and trouble. Did he try to get out of the life that was causing him to spiral downwards? Levy, a friend of West', turned him on to the Job Corps. West told him enema, man, I am ready to try something.Anything. † (139). Soon after, he was off to the Job Corps. The authors' mom had sent him off to military school around the same time. She thought that would be the best way for him to stay UT of trouble. One of his first memories of being there was, â€Å"Get up, get up, get out of your racks, plebes! † (85). That's what was yelled at him at 5:30 in the morning. West goes on to share with us the ins and outs of his time in military school. How having that structure and discipline really changed him. This is where the author's life and the other West Moor's life start to differ.The incarcerated West graduated from the Job Corps. West describes that after his return, he ended up is several temporary part time Jobs. He thought he would never get ahead. At this point, he talks about how he ended up back in the life he tried to leave. Dealing drugs, that's the only thing he really knew about. The only way he felt he could take care of his family. He explains to the author about the time he got caught up in a Jewelry store robbery with his brother and two other men which resulted in the murder of Baltimore police officer.That was the day his life was over as he knew it. He would spend the rest of his days in prison. He still claims, â€Å"l wasn't even there that day. † (125). The author proudly tells us how he graduated from military school as a very high ranked cadet. From there he went on to be a Phi Beta Kappa graduate from John Hopkins. He elaborates on the wonderful, fulfilling life he went on to have. In the first part of this book the author reveals to us how he came to hear about the other West Moore. He had read an article with the title, â€Å"Local Graduate Named Rhodes Scholar. He realized it was about him. He then read an article on the robbery, murder and the other West Moore. West set out to find out more about this man's life and how it compares to his. Again this is the basis of this book. Why did the author feel the need to tell his story? The author wants us all to realize that you can be from the same place, with the same issues and still come out on top. That yes, there will be challenges, but if you work hard enough and are lucky enough to have the support, you can do anything.Some of most enlightening moments in the book come one of the last meetings between the author West and the incarcerated West. It had been nearly three years since West first contacted the incarcerated West. The author asks West, â€Å"Do you think we're all Just products of our environments? † (126) Too this question West answers, â€Å"l think so, or maybe products of our expectations. † (126). â€Å"We will do what others expect of us,†¦ If they expect us to go to Jail, then that's where we will end up. (126) Author West Moore does an excellent Job of showing us the lives of the two West'.His hope is that this will inspire young people. To let them know that they can be whatever they want to be. It may take work, and it may be hard, but they can do it. In the end West says, â€Å"Above all, I hope that this book can provide young people with a way to identify with the success as a possibility, and a reason to believe that a story that begins with a struggle, apathy, and the pain of loss can still have a happy ending. † (183) Works Cited Moore, West. â€Å"The Other West Moore: One Name, Two Fates†. New York: Spiegel & Grab, 2011 Print

Social Media s Influence On Education - 1119 Words

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