Lab 4 Diffusion and Osmosis Essay

1. Diffusion and Osmosis, June 4, 2013 2. Purpose: The purpose of this lab is to help give visual understanding of diffusion which is a solution of high concentration spontaneously (no energy required) moving to an area of low concentration. Also taking a look at osmosis, which is the movement of chemicals across the cell membrane. Osmosis requires some type of energy to be put in for this to happen. After these experiments we should have a better idea and visualization of how chemicals transfer across the cell membrane. 3. Materials: Dropper bottle of water Compound microscope Dissecting needle Carmine powder Slide and coverslip 3 test tubes Transfer pipets 2 400 ml beaker 30 cm moist dialysis tubing 500ml beaker Hot plate Benedicts reagent I2KI solution starch solution Wax pencil 30% glucose solution String or rubber band Test tube rack Slides and cover plates 4. Methods and Procedures: Experiment 1: Prepare a slide of dry carmine and water and cover slip Put under the microscope, examine under the different magnifications, record you findings to later set up your conclusion. Experiment 2: Use dialysis tubing that has been soaking in water, fold it â€Å"accordion style† and use string to close the ends like a bag. Roll opposite end of bag till it opens and add 4 pipettes of 30% glucose into it. Add 4 pipettes of starch solution into it. Mix contents with bag closed. Then rinse with tap water. Add 300 mL of water to a 400- to 500- ml. add a few drops of solution till it turns an amber-yellow color. Leave bag in beaker for 30 minutes. Remove bag then let it dry. Record observations. Experiment 3: Obtain 7 equal size bore hole cylinder from the potato, cut roughly to the same size record the length and weight of each making sure they remain order. Next is to collect 7 cups filled with 100 ml of the 6 different concentrations of glucose (, 0.1 0.2, 0.3, 0.4, 0.5, 0.6, and water). Record the time and submerge the potato cylinders in the solutions. Let them sit for an hour and half before removing, weighting and recording the final weight. 5. Observations and data: Experiment 1: Carmine powder observation: movement is random, looks like continuous vibrations Experiment 2: Table 1 Benedicts Test Test final color Before heat of Benedicts test After heat Final Color Water (control) Clear Baby blue Blue Bag Slight yellow Baby blue Yellowish green Beaker Gold Baby blue Orange/pink After letting the bag sit inside the bath for 30 minutes the solution inside the bag went from a clear color to a slight yellow color. And after the final results of benedicts test I can conclude the carbohydrates did move from inside the bag out. My observation concerning the size of the potato cylinder in the glucose decreased as the concentration of glucose increased and the potato in water remained the same size. 6. Conclusion: The carmine powder experiment proved the theory of diffusion because with no energy required you can see the movement of particles under a microscope. Again diffusion is the movement of molecules from high concentration to low concentration with no energy required. On the other hand the experiment concerning osmosis were the dialysis bag and the saturation of the potato. Both experiments demonstrated the movement of sugar or water across a cell membrane. On the dialysis bag experiment we could see the slight color change as the IKI did move across the membrane in to the bag but the big surprise was see that after the benedicts test how strong the sugar content was in the beaker solution. Lastly the potato experiment demonstrated through the change in weight how water could pass through the membrane. As we saw the greater concentration of glucose the more shriveled the potato got, indicating the water inside the potato exited out trying to make the concentration equal. The solution containing strictly water made the potato swell as if the concentration inside was lower than the concentration outside.

Do the Right Thing (Spike Lee) Film Analysis

Color Evokes Emotion Spike Lee, the director of Do the Right Thing (1989), makes sure the audience understands how the heat is affecting the characters on the day the film takes place, and to do this he uses color. To subtly express how heated, physically and metaphorically, the characters in the film are, Lee uses warm colors such as red and orange. Likewise, he rids the presence of warm colors and uses cool colors such as blue and white in order to signal to the audience that things have cooled down and the atmosphere has a more loving vibe . From beginning to end Lee makes sure that the audience is aware of the temperature outside.The film uses the words hot and heat a countless number of times throughout the movie, but Lee also uses visuals to engage a sense that is not generally used to identify with temperature . The color red is present in the clothes that the characters wear, the buildings the characters live in and are in front of, and it is the color of numerous props in th e film. For instance, the hottest location in the film, the Pizzeria, had tabletop items, small decorations on the seats and walls, and even the color of the brick oven were a very vivid red that really stood out.The same subtle usage goes for the color orange, but in addition street lights are an orange color, and there is a eye-straining orange tint to the entire film. Lee uses these warm colors to allow the audience connect with the characters, and helps them feel the frustration the heat adds to the already riled up characters. The presence of these heated colors also help enhance the notion of heat, for this film, representing the tension amongst the different races, and the minorities towards the whites. During the climax of the film the Pizzeria is set into flames, and its heavy orange glow is reflected on the faces of Sal and his sons.In the couple of scenes where tension is not so high, and people are not completely suffering from the heat, Lee removes the orange tint and w arm colors and instead replaces them with cool tone colors such as blue and white. Specifically, in the scene where the two boys unscrew the fire hydrant and use its water to entertain and cool off the people of the neighborhood the audience will notice an absence of the orange tint and the presence of people wearing blue and white. This cooled down scene is then interrupted and upset by a white man driving a car that happens to be red.Lee also uses the cool toned colors to show love. When the main character, Mookie, and his baby’s mother, Tina, are having an intimate moment he has her remove the clothes she has on which happen to be warm colors. Similarly, when he goes to the freezer to retrieve an ice cube his son and Tina’s mom are in there, both dressed in blue shirts. Taking away the warm colors and orange tint allows the audience to feel the same kind of sense of relief as the characters feel in theses scenes. Lee’s usage of color is to help the audience f eel, on a deeper level, what the characters in the film are feeling.Whether it be from the actual heat of the sun or the heat produced by the tension in the neighborhood and with â€Å"the man†. The most tension and hate filled moment in the film is topped off with a fire burning bright oranges and reds. Lee also made sure to allow the audience to experience more than just hate (or heat) by including scenes that did not have an orange tint or warm colors, but instead cool colors. Lee successfully appealed to the audience’s feelings through the use of colors and made sure they could connect with the characters more personably.

Branding britian Research Paper Example | Topics and Well Written Essays - 500 words

Branding britian - Research Paper Example The IMC dimensions in the video advert on Great Britain include the voice, the interactions as well as the lucrative nature of the long term relationships formed. Also included is the exploration of the highlight using the IMC Development theoretical model. This involves looking at the orientation of the brand, the promotion, the end results of the brand, as well as the financial end results (Moriarty, 2012). For instance, our report talks about the sounds of Britain that have been known to define the tourism sector greatly. Such include the ticking of the clock, the mixing of tea and coffee, the passing of trains and cars, ringing of bells and cheering of games by fans. Using one voice means bringing together the marketing objectives with only the intention of directing the audience towards the objective of the promotion. According to (Moriarty, 2012), having one voice is very crucial, and it means that the communication instruments used have been able to convey clear ideas to its audience. The written texts displayed coincide with the pictures provided. The graphics, for instance, at the beginning of the video whereby there is a display of the Great Britain airports with visitors checking in balances with the simultaneous written message about the increase in visitor spending. This is seen during the first 20 seconds into the video, in which there is a narration of a story of a boy who travelled to a faraway place, but there is no link provided between this and the overall marketing objective. This is the same for the mention of the land rover defender, halfway into the video without mention of its relevance. On the other hand, having the intervie ws towards the end of the video has successfully avoided overloading the audience with information. Interactivity improves communication as part of marketing by making it possible for the audience

Google Launches Cloud Storage Nearline Essay Example | Topics and Well Written Essays - 750 words

Google Launches Cloud Storage Nearline - Essay Example The targets are the users of Google Cloud Platform and those using storage solutions of data’s brand name to perform backups. It is also an alternative to enterprises with in-house storage systems, or store user data using startups with mobile applications. NetApp, Geminare, Iron Mountain and Symantec enterprises, providers of storage systems, have collaborated with Google to incorporate Nearline in their products (Burnett, 2011). The data is saved in multiple locations such that even if one location goes offline the data remains intact for accessibility. Application Programming Interface (API) accesses the stored data using a data communications method known as Representational State Transfer (REST) that is understood by many developers. In the field of business/commerce, customers are able to enjoy the cheaper storage rate at rest of one cent per gigabyte to store infrequently accessed data, and to access the same faster on demand, which is critical in acquiring market intelligence and conducting analysis. A retailer in a bid to push a promotion might also want to pull out historical information. For the enterprises already using other storage and backup companies, migration pains have being eased through the partnership of several companies and Google, streamlining of customers’ moves to Nearline thus enlargement of market portfolio. The business/commerce ecosystem has been expanded, as user dependence on Google’s search engine will exploit home delivery services, advertising, app stores, digital media services and mobile payment platforms. Enterprise initiatives like â€Å"Chrome books for work† and â€Å"Android for Work† are being complemented as Nearline is helping Google to tap int o â€Å"hybrid† cloud while using APIs as hooks to tether businesses to its productivity apps (Jennings, 2009). Google Cloud Storage Nearline will influence positively on the way businesses interact with

The Profit Motive In American Society Term Paper

The Profit Motive In American Society - Term Paper Example Capitalism is not just any system as it facilitates the economy of a nation by allowing its citizens to own their businesses by creating the services and goods needed by others in exchange for money. It is said that the main objective of the system is to gain the profit which anybody would love to have as they get to grow their money (Nee 3). Ultimately, the growth means more purchasing power for the owners of the money and they can buy more of what they want and need. Profit is not the only consideration in a capitalist economy as market competition also exists. Market competition occurs as there is more than one provider of the same product or service to customers whether the clients are consumers or businesses. The competition becomes stiff when there are many providers in the same niche market or industry (Metcalfe and Warde 1). It leads to close fight for market share and the tendency to offer the prices of the commodities lower than the competing brands just to increase sales.P rofit may be connected to capital accumulation which is different from the competition. Accumulation of capital is pursued to grow the business and multiply the money. For stock corporations, the growth can provide additional dividends to stock holders or provide additional shares in the stock. Employees also receive the increase in their remuneration when they perform well and as the business grows. Capitalism has various formats and variations depending upon the culture and geographical setting of the system.

Russia Revolution Essay Example | Topics and Well Written Essays - 1500 words

Russia Revolution - Essay Example Nicholas II didn't have political will, didn't have emperor's charisma and was short-eyed politician. His surrounding was unqualified men too and neither they nor he had a clear idea about the situation in the country as they lived in the world of luxury. It's enough to remind that situation in 1917 in Russia was very uneasy: Russia barely survived revolution of 1905, working movement inspired by Marxist ideas was growing on the hand with nationalism in Poland, Finland, Ukraine, Baltic provinces and Caucasus. Imperial government policies were very ineffective and in many respects suppressed dynamic development of province. Domestic and foreign policy caused nation's anger and disrespect both in the eyes of own people and foreigners. As a result, Russian defeats and casualties on the WWI battlefields became a culminating point of Russian troubled times - the March Revolution began. Ultimately, Czar's rule was replaced and two main powers appeared: Provisional Government, which consist ed of wealthy elite, and local Soviets, which represented the majority of population. Power dualism in the society ruled only by chaos was not successful. Provisional government with progressive western ideas of future reforms saw Russia as a democratic state ruled by elective parliament and government. Provisional government was established as a government organ to rule the country before the constituent assembly was elected. Provisional government was a legitimate body as prince Mikhail gave it plenary powers after tsar Nicholas II abdicated in favor of his brother prince Mikhail. Provisional government was formed from the most influential political figures of Russian empire: aristocrats, politicians from Duma (including social democrats) and military men. Provisional government proclaimed that it would continue war with Germany until the victory and that constituent assembly would be elected after victory in the war. Besides Provisional government proclaimed the course directed on the spread of civil liberties and democratic freedoms. Provisionary government made attempts to establish monopoly over bread trade and over provisions trade in general in order to avoid speculation, growing social unrest and in order to prevent famine. But in Russia nearly everyone was sure that neither Provisional Government nor the Soviets could adequately solve a number of economical and political problems: only the constituent government would have such plenary functions. At the same time a number of democratic reforms proposed by Provisional government which got the favor of both progressive ruling classes and low classes (workers and peasants) were postponed until the elections to constituent assembly. Property reforms, working day length, economical reforms and political reforms remained to be projects until the end of the war as it was proposed by Kerenskiy (the head of the Provisional government). Provisional government had utopian illusion that victory in the war over Germany would solve economical and political problems, but by the 1917 tensions in soci ety caused by wartime hardships reached the top. Such policies led to the four issues of political crisis in the country. The first crisis started in April after Provisional government failed to find consensus in the issues of participation in the war as socialist members of Provisional gover

Business Essay Example | Topics and Well Written Essays - 500 words - 35

Business - Essay Example The success of Apple Inc. is characterized by innovativeness, acquisitions, and product diversification. Apple Inc. is a company that has grown to a multinational with a great reputation across the world. In its path, innovation strategies, product diversification, and acquisitions have contributed greatly to its success. Apple Inc stands on the philosophy of â€Å"think different† which means the company is focused on innovation (Apple Inc, 2014). Apple has been consistent in the development of its products; they have embraced changes in several occasions hence developing products that have hit the market by storm. Another strategy the company has adopted is diversification. When the company was started, its sole mandate was to develop and sell personal computers. However, over time the company has diversified shifting from this role to that of developing and selling consumer electronics such as mobile gadgets, televisions, and iPods among others. The strategy utilized by Apple Inc is the differentiation strategy. Apple Inc. has developed various mechanisms to have a superior brand that differentiates itself from the competitors. The company’s innovativeness, leadership, and ability to embrace diversification of products characterize these strategies. In the electronic industry, Apple Inc. has created a respectable brand that people have confidence with. It has attracted technology enthusiasts and those in need of certain aspects in electronics. Creating an impressive brand promotes customers’ loyalty and presents psychological benefits to them. By remaining innovative and establishing new products that are unique from those of the competitors, the company is able to foster customer retention and hence brand loyalty. Various information systems are likely to give the company a competitive advantage over the rest. Such include the ability to use the social media platforms to market and create product awareness.