Patchwork Essay Example for Free

Patchwork Essay â€Å"The relationship between the object and the intervening spaces is not formal: it is always rooted in the context of a particular setting† Dalibor Vesely (in Brooker and Stone, 2007, p. 57). The Neues or New Museum (see figure [1]) was completely built in 1855. The building was design by a Prussian architect, Karl Friedrich Schinkel. The purpose of the building was originally built as an extension house to accommodate Altes Museum. Most of Karl Friedrich Schinkel’s works were Neo-Classical, such as, Neue Wache also known as New Gate House and The Konzerthaus Berlin (von Buttlar, A. Architectural Guide [2012], pg 4). Architecture in style of Neo-Classic contains the component of characteristic temple-like features of Greek and Rome (for instance, Acropolis in Athens and The Pantheon in†¯Rome) Architecture, rolls of tall columns, pediments and domed roof, for example (see figure [2]). One of the most important elements in Greek and Roman architecture was balance and symmetry (see figure [3]) which was hugely influential in the structure of neo-classical. Many neo-classical architecture have one component that can be identified as its style, the use of columns, that are normally built to almost the same height as the building. Columns are used to secure the symmetrical and balance of the dimension of the building as it is the efficacious†¯and evident use of method as for exterior. Also, the uses of columns support the pediment. The arch and columns, however, have comparatively become a symbol of Greek and Romans architectural style. Some believes those features are a conspicuous and crucial part in the revival of its style. Thus it remains a ‘staple of neoclassical architecture’, together with its ‘distinctive domed roof’ (N/A. (2012) NeoClassic, [Online], Avalible at :http://www.neoclassic.com) . Neues Museum built in a Neo – Classical style that began in the 19th century, the building spanned over three floors including a grand staircase. The design of the Neues is heavily influenced by Stoa in Athens classical Greek architecture. Inside this building is a broad staircase and iconic columns, which lead towards a bronze portal that then leads to a double staircase to the ending upper floor which was nearly destroyed during the Second World War. In 2003, British architect David Chipperfield, whose aim was to restore the parts of the build that were destroyed while also keeping conservation requirements. He wanted to keep to the original structure while creating continuity with the existing structure. The newly designed expedition rooms were built mainly of pre – fabricated concrete elements, which consist of Saxonian marble chips. In the Northwest wing of the new build it was constructed by recycled handmade bricks. David Chipperfield has managed to not only keep the original quality of the build but almost enhance its structure without losing any of the builds feature. (Minner , Kelly . Neues Museum / David Chipperfield Architects in collaboration with Julian Harrap 28 Apr 2011. ArchDaily. http://www.archdaily.com/127936) In conclusion, after the research through this essay, we strongly agree with the quote â€Å"The relationship between the object and the intervening spaces is not formal: it is always rooted in the context of a particular setting†. Hence the Neues Museum is situated on an island which surrounded by other neo-classical architecture, even though the bu ilding was built after the neo-classical trend had become unfashionable. Thus that makes the Neues Museum blends in with its environment. Bibliography von Buttlar , Adrian. Neues Museum Berlin. Architectural Guide: Deutscher Kunstverlag (Mar 2010) Hà ¶fer, Candida and Kenneth Frampton. Neues Museum Berlin: By David Chipperfield Architects in Collaboration with Julian Harrap: (English Edition) Walther Kà ¶nig (30 Nov 2009) Mustertitel . The Neues Museum Berlin: Conserving, Restoring, Rebuilding Within the World Heritage : Art Stock Books Ltd (30 Mar 2009) archdaily.com http://www.archdaily.com/127936/neues-museum-david-chipperfield-architects-in-collaboration-with-julian-harrap/ http://www.neues-museum.de/ http://www.neues-museum.de/architektur.php http://architecture.about.com/od/neoclassical/a/What-Is-Neoclassical-Architecture.htm Figure [1] The Neues Museum [http://www.archdaily.com/127936/neues-museum-david-chipperfield-architects -in-collaboration-with-julian-harrap/] Figure [2] Dome roof Pediment Roll of columns [http://www.architecture411.com/common/notes/1/roman_pantheon.jpg] Figure [3] Symmetrical Balance [http://gogermany.about.com/od/picturesofgermany/ig/Museum-Island-Berlin-Photos/Neues-Museum-Berlin-.htm]

John Lockes State Of Nature Philosophy Essay

John Lockes State Of Nature Philosophy Essay John Lockes state of nature is where humans exist without an established government or a social contract. It is a state of anarchy where there is completely no order or rules that guide human behavior. There are no laws to govern us and we are guided by our own instincts on what is right and wrong. According to Locke humans do not need a higher authority to control them and there can be a peaceful co-existence among people. There is no need for one person to take charge to bring about order. People behave according to the laws of nature which include natural freedom and moral equality. It is also known as our natural rights. John Locke believes that human beings are born with certain divine rights such as the right to live, the right to liberty and property. These natural rights alone have the sole capability of managing a harmonious society. Natural rights are rights of any species that exists outside the laws of the governing body. Fish that swim in the ocean do so by natural right not because legislation allows them to do so. The presence of a ruler to carry out our rights is uncalled for. He points out that a sovereign, limits human liberty and our natural rights. Human beings are perfectly capable of governing themselves as the respect for our natural rights. The state of nature is a state of equality with no one having more than another. People can act freely without being held by any set of rules or laws that would curtail their freedom and happiness. Locke states that God owns us and we are his property, therefore one has the right to protect themselves from harm. Humans have the right to defend themselves and punish anyone who violates the state of nature. The state of nature is governed by the law of nature. The law of nature states that we should refrain from causing harm to each others life, liberty, and property. Locke says that we should all treat each other as equal and doing harm to another is like doing harm to yourself. Rene Descartes is chasi ng me around the forest with a butcher knife and trying to kill me. Locke would argue that I did have the right to defend myself for my life was in danger. Descartes was harming my state of nature by trying to attack me. I have an obligation to punish him for he violated the laws of nature and caused me harm. The state of war is a state of enmity and destruction. Unlike the state of nature where we exists peacefully, the state of war is filled with malice and violence. We are constantly trying to watch our backs and protect ourselves. If any man is threatened by another he is in a state of war with that person. The innocent has the right to destroy the aggressor. Locke compares Descartes attacking me to a wild beast attacking me. He states that whether it be a man or lion, the consequences are similar because it is logical for me to attack anyone or anything that threatens my life. Rene Descartes is to be treated as a beast of prey. The state of war occurs when people exert unwelcome force on other people interfering with their own natural right and freedom without common authority. When one man uses force to deprive another of his life, health, possessions, or property, it becomes a state of war. The fundamental law of nature declares that man should preserve as much as possible, when al l cannot be preserved and the safety of the innocent is preferred. One may destroy a man who makes war upon him. Self-defense is a corollary of the natural law and we have the right to our preservation. The law of self-preservation dictates that a person may kill another person in self-defense. So in a state of war, I do have the right to defend myself because I am preserving my life and keeping the enemy from harming it. It is lawful to kill him for he put himself in a state of war with me and he has disobeyed the state of nature. I am able to destroy that which threatens me with destruction. Since there is no common authority, I myself can only be a judge of my own conscience. It is up to me to decide the fate of Descartes. The war does not end until the aggressive party offers peace and reparations for the damage done, until then the innocent party has the authority to destroy the aggressor. In a civil society, our natural rights à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬ life, liberty, and property is protected by the government. A civil society exists when there is chaos and an authority must be present to set things in orders. We place the authority to a legislative and executive power and must abide by the laws set forth by the government. Humans no longer have the ability to punish those who violates their state of nature. This job solely rests upon the authority. In a civil society, I would not be able to kill Descartes or decide his penalty. In a civil society, a state of war exerts in the manner except there are laws and the government determines the punishment of the aggressor. Question 6: Thomas Hobbes Thomas Hobbes state of nature is where there is no sovereign to put forth rules and regulations and human beings are living like wild beasts in the jungles. It is not a place where we can all peacefully co-exist amongst each other. It is filled with violence and we are constantly trying to escape death. Our equality is that we all want to kill each other. All men in the state of nature have a desire and will to hurt those who endangers them. Our nature of human beings is to be selfish and we will strive to protect and achieve are selfish ends. Everyone is naturally willing to fight one another and it is every man against every man. There is no civil society and we live in continual fear. According to Hobbes, life with constant battles and no strong central government would be solitary, poor, brutish, and short. There are no laws to maintain order and people have the freedom to do whatever it is their hearts desire. A state of nature is simply a state a war and its a competition for t he survival of the fittest. Humans are fighting with one another in order to survive. We will do anything to stay alive, even if it means taking another persons life. If I lived in a state of nature where food was scare, Descartes and I would kill each other in order to survive. Hobbes declares that a state of nature is horrible for there is no sense of what is right or wrong, except self-preservation. We are only looking after ourselves and every person has a state of natural right to do anything one thinks is essential for preserving ones life. There is no jurisdiction and humans cannot be held accountable for their actions. People are at each other throats for survival, resources, and power. There is nothing to protect the weak against the strong. The strong will prey upon the weak and overpower them. Descartes being a strong man and I am a weak fragile girl, he can easily wipe me out. There is no sovereign to protect me from getting killed. In this state there is no sense of sec urity and are lives are always in danger. Hobbes state of nature differs from Lockes. Lockes state of nature is peaceful and is separate from his state of war. Hobbes argues that a state of war exists within the state of nature. Humans fear a violent death and we are all aware that we can harm one another. We possess two desires, free of violent death and superiority over one another, we have the ability to hold it over one another. Without a governing authority, this will cause war to break out in a state of nature. Since we are all fearful of one another, we become aggressive towards each other with causes disputes and war to break out. Hobbes claims that there is no rule of property in the state of nature. No one can claim ownership over anything. All the laws come from the sovereign. We have the right to steal items from one another because it wasnt theirs to begin with for they do not have ownership over it. He argues that we must have a government to settle this chaos and madness. If we live in a world with no authorit y it would be destructive and everyone would be killing each other. Hobbes tells me that I need someone to protect me from Descartes and prevent him from killing me. Once we have a sovereign the laws of property and life are established. Descartes would receive punishment for his crimes and I could get a restraining order against him. Unlike the state of nature, we would be safe and secure living under a legislation and executive. The laws of the sovereign helps regulate how we act with one another and it keeps civil war and war against each other from happening. These laws ensures us to live in a peaceful civil society where we are protected from the things that we fear. In the state of nature, people had more freedom and more rights. Under the rule of the sovereign people will give up their rights in exchange for a more peaceful life and environment. The sovereign is given authority to by the people and whatever they do is right. They are the voice of the entire ruling body. One m ust not question their actions for there will be consequences if they disobey. They will follow the rules for they fear receiving punishment. The establishment of a government makes it possible for the lives of man kind to be preserved and their rights to be protected. The purpose of a sovereign is to control natural law. It acts as a remedy to restore sanity and tame the rambunctious behavior of man. The law acts as some form of punishment to those who go against it and try to interfere with the rights of other citizens. A government ensures that we each have our individual rights, however we must not interfere with the rights and freedom of others. An oppressive government, is better than no government at all.

Sex and Music Videos in the 21st Century :: Music Essays

Sex and Music Videos in the 21st Century Females have been portrayed as sex objects in music videos since MTV began. Some of the earlier stars on MTV consisted of Prince, Kiss and Aerosmith, just to name a few. Even those videos contained images of women in bikini’s, so why are we so shocked and appalled when Kid Rock has 20 surgically enhanced women parading around him as if he is king? Is it really that shocking that Sisqo’s, â€Å"The Thong Song† was voted 2000’s summer anthem, by Jet Magazine? His most recent album contained thirteen tracks. Of those thirteen tracks, 50 % contained sexual content. (www.cwrl.utexas.edu) It isn’t that society is shocked that men portray women as sex objects, it’s the fact that males in general still view women as sex objects. This is the 21st century. Women have fought long and hard to be treated as equals to men. They wanted to prove that women are not a trophy, yet not required to be bare foot and pregnant. Just when women think they have won the fight, models, such as Pamela Anderson, whom willingly prance around in skimpy shorts and tight, revealing, leather tops and sporting high heels become the competition. This is an image that respectable women have fought so hard to rid society of. What a slap in the face. Young, impressionable males do not understand what the subliminal messages in popular music videos are. Subconsciously, boys think that they understand what rock and rap videos are saying. The children do not understand that producers, directors and the artists, work as a team to strategically use camera angles, positioning, poses and sexual innuendoes to make their point. In fact, according to Kathleen Turkel, an assistant professor of women’s studies at the University of Massachusetts, â€Å"The fantasy world of rock videos is not innocent or accidental, but it is a carefully designed advertising technique used to sell CD’s, tapes and videos to a target audience of 14 to 34 year-old consumers.† (Rhodes) The final result of all of these messages is a very skewed image of who and what women are. Young girls viewing these videos is actually quite disturbing because what they watch on television is what they will grow up wanting to become. With all of these gr aphic images allowed on television, is it any wonder why we have horrible rape cases and other sexual assault crimes? Sex and Music Videos in the 21st Century :: Music Essays Sex and Music Videos in the 21st Century Females have been portrayed as sex objects in music videos since MTV began. Some of the earlier stars on MTV consisted of Prince, Kiss and Aerosmith, just to name a few. Even those videos contained images of women in bikini’s, so why are we so shocked and appalled when Kid Rock has 20 surgically enhanced women parading around him as if he is king? Is it really that shocking that Sisqo’s, â€Å"The Thong Song† was voted 2000’s summer anthem, by Jet Magazine? His most recent album contained thirteen tracks. Of those thirteen tracks, 50 % contained sexual content. (www.cwrl.utexas.edu) It isn’t that society is shocked that men portray women as sex objects, it’s the fact that males in general still view women as sex objects. This is the 21st century. Women have fought long and hard to be treated as equals to men. They wanted to prove that women are not a trophy, yet not required to be bare foot and pregnant. Just when women think they have won the fight, models, such as Pamela Anderson, whom willingly prance around in skimpy shorts and tight, revealing, leather tops and sporting high heels become the competition. This is an image that respectable women have fought so hard to rid society of. What a slap in the face. Young, impressionable males do not understand what the subliminal messages in popular music videos are. Subconsciously, boys think that they understand what rock and rap videos are saying. The children do not understand that producers, directors and the artists, work as a team to strategically use camera angles, positioning, poses and sexual innuendoes to make their point. In fact, according to Kathleen Turkel, an assistant professor of women’s studies at the University of Massachusetts, â€Å"The fantasy world of rock videos is not innocent or accidental, but it is a carefully designed advertising technique used to sell CD’s, tapes and videos to a target audience of 14 to 34 year-old consumers.† (Rhodes) The final result of all of these messages is a very skewed image of who and what women are. Young girls viewing these videos is actually quite disturbing because what they watch on television is what they will grow up wanting to become. With all of these gr aphic images allowed on television, is it any wonder why we have horrible rape cases and other sexual assault crimes?

As I Lay Dying Essay -- essays papers

As I Lay Dying In "As I Lay Dying" William Faulkner uses multiple points of view to explore the theme of existence as a motionless and meaningless cycle. The cycle is motionless because it is inescapable and unchangeable. One can never leave the cycle of life and death. People perpetuate the cycle by creating life, but in creating life they are creating death, for life irrevocably leads to death. Faulkner depicts existence as meaningless. Nothing really changes in the story. On the surface the characters appear to change, such as Addie dying, Darl going crazy and Anse getting a new wife, but none of these changes are really as relevant as they seem. By using multiple points of view Faulkner lets us into each character’s mind. We see how each person thinks about the cycle of existence. This insight could be accomplished with an omniscient narrator, but Faulkner’s way is much more effective. Faulkner allows us to see a ten-year-old’s perspective on life and death from the perspective of a ten-year-old, instead of from the perspective of some all-knowing narrator that doesn’t really know what it’s like to be a ten-year-old. Also, the actual sequence of narrators is in a cycle. We don’t just hear all of Darl’s point of view, and then Anse’s, and then Peabody’s. Faulkner cycles through his characters, returning again and again to people like Darl and Dewey Dell and Vardaman, while having characters such as Jewel and Addie speak only once. Addie Bundren is in many ways the central character of the story. The plot revolves around her as her family tries to get her body to Jefferson for burial. Her single monologue comes in the exact middle of the book, making her geographically the central character. Most importantly howeve... ...and what his place is in life, and the fact that he goes crazy is simply the next step in his identity crisis. Again, it is because we are given Darl’s thoughts that his craziness makes sense to us. We are brought into his confused mind, and so when it finally cracks we understand why. So nobody in the story really changes. They are all in a motionless state of existence, moving slowly towards death. Faulkner’s use of point of view helps us understand how the characters feel about their cycle of existence, and how much of it they truly understand. If Faulkner had told this story any other way, we would not understand the cycle as well as we do. We wouldn’t feel a part of they story and the characters. We would be distant from their emotions and thoughts. But as it is, we feel like a part of everyone in the story, and we can relate to and understand their thoughts.

George MacDonalds The Princess and the Goblin :: MacDonald Princess Goblin essays

George MacDonald's The Princess and the Goblin All over the world people have believed in a race of creatures, superhuman and subhuman, that are not gods or ghosts, but differ from humans in their powers, properties, and attributes (Briggs, Vanishing 27). The concepts of these creatures/fairies have been passed down through generations in many cultures through forms such as songs, sayings, and stories. Stories such as folktales and myths have wide array of fairy types found in them from various cultures' folklores (Abrams 101). Little people (lesser spirits) are often considered a subclass of fairies and include creatures like gnomes, trolls, and goblins (Rose 200, South 329). George MacDonald in his myth novel, The Princess and the Goblin, draws from many folk sources to bring to life his underworld "goblins." These "goblins" are an amalgamation of various types of little people. MacDonald effectively brings together attributes of goblins, dwarfs and trolls, gnomes and kobolds, and brownies to create a narrative full of tension and humour. First, MacDonald's "goblins" once lived above ground as humans, but they chose refuge underground to avoid severe taxes placed on them by the king (MacDonald 3). Through time, these people were transformed into "goblins." This is similar to the common suggested origin of the little people as humans conquered by other races that now conceal themselves from their conquerors (South 334). The fairies are often said to have been Eve's children whom she hid from God because she was embarrassed by them; God was not deceived and decided that those children should be "hidden from all Mankind" forever (Briggs, Vanishing 31). These origins suggest that the creatures are half human, which is a common idea in Scandinavian tradition (Briggs, Vanishing 31). This human origin of the "goblins" suggests that they are one side of human nature. There is a tension between the "goblins" and the humans as they show different aspects of life and morality. Second, the goblins, dwarfs and trolls, gnomes and kobolds, and brownies are all small, but they are humanlike in form though often described as misshapen and grotesque, and except for brownies, they are also often described as being old with gray hair and beards (Rose 51, 93, 128, 316). MacDonald's "goblins" are dwarfed and hideous, and though they are not described as old looking, their cleverness is associated with this characteristic (MacDonald 4). The use of these common folklore images of little people creates creatures that can be imagined easily by the reader.

About Nyc

Living in America is a fantasy for a lot of people, but living in New York City is something even better, and more magical than any fantasy. Although regarded as the `most populated city ‘ in the United States, the whole city has something interesting to offer everyone. It is sub divided into five boroughs , being Queens , The Bronx , Brooklyn , Manhattan , and Staten Island respectively . The landmarks in New York city are known all over the world . There is the famous Statue of Liberty, Brooklyn Bridge, Wall Street, the sky scrapers, and the World Trade Center, now called ground zero.One of Manhattan’s famous landmarks is Times Square. Different kinds of lights illuminate the area, where people are seen partying, having fun, and enjoying life. People from all over the world go to Times Square to have a glimpse of such a beautiful sight. A New York trip will never be complete without a visit to Times Square. The skyscrapers are so astonishingly tall and eye-catching. Th ese buildings posses the most beautiful architecture I have ever seen in my lifetime. I think to myself, there are so many buildings here; I find it hard to believe that man is capable of putting them up.The buildings look like they have plunged from GOD’s hand and landed at one spot. New York City is basically a crowded and small city. With a population of almost eight million residents, it is actually a mystery how such a big population would fit in one city. During the day, the streets and the subways are filled with busy people, with the roads filled with cars and the continuous honking of vehicles. By night, stars are accompanied by the millions of lights that illuminate the busy streets. They call New York the city that never sleeps.Let me tell you something, this big city called â€Å"The Big Apple† is the capital of all the new fashions and trends. Shops on the â€Å"Fifth Avenue† will make you really feel like a Million Dollar person, while in Chinatown you can get the cheapest unbranded stuff that looks almost the same. You can go see the â€Å"The New York Mets† at Shea Stadium in Flushings, Queens, and â€Å"The New York Yankees† at Yankee Stadium in the Bronx. You can buy anything at anytime during the day or night because the shops never close.Walking down the Manhattan streets, it’s almost customary to smell the smoke of exhaust from thousands of cars. The smoke coming from Subway stations underneath the roads can get to your nostrils quicker than it can be seen. It almost makes you feel like if you are a big giant walking along houses under your feet that have smoke coming out of their chimneys. At the same time the smell of hotdogs stands, salted pretzel stands make you aware of their presence as your smell sensors go crazy, and start telling your brain to get some.You can try your best but the smell from Italian pizzerias will sure pull you in for a slice or two even if you are not a pizza lover. Then you have the fresh smell of different fruits coming from the fruit stands on the streets, reminding you that New York City even has choices for everyone even for healthy conscious ones. I lived and liked Brooklyn borough of New York City because it has so many Pakistani people, that it’s called â€Å"Little Pakistan. † There you will find tasty Indo-Pakistani food.Your taste buds will thank you for the spicy aroma, and tenderness of chicken or beef kabobs perfectly done on clay oven called â€Å"tandoor†. Chicken curry, beef curry with freshly clay oven baked Naans, Bryani, or tandoori chicken will give you the perfect combination of spices, aroma, tenderness, and fill you right up for a very reasonable price. In Manhattan, during the winter time, you have the roasted sweet almonds, and roasted salted peanuts that make your whole body warm. After eating a few of those, you might not like hot cocoa again.Sounds of honking of cars are a part of life in this city. Living in the apartments, it’s normal for you to wake up at least 2 to 3 times a night because of the sirens of Police or Fire trucks. Although you do not get to see any big planes over Manhattan anymore, but you hear the big planes roaring almost everywhere else reminding you of the fact that New York City is home to not only Westchester, Newark, but to big airports like JFK, and LaGuardia also. In winter, snowflakes are my favorite. Touching the snow, falling generously, makes you feel like you are touching the clouds.On Brooklyn and Brighton beaches, you can touch the cold water, and hot sand, making you feel as if you were in Caribbean’s. New York City never sleeps, so you can see, smell, feel, taste and touch so many things that you can go on and on about this great city, it’s beauty, and its wonder. Here you can see so many different cultures, different worlds living in one small world. I know that experiences that I had in that city are so magical and ex traordinarily special, they will always be with me where ever I go.

Cell Theory Essay

In biology, cell theory is a scientific theory that describes the properties of cells, the basic unit of structure in every living thing. The initial development of the theory, during the mid-17th century, was made possible by advances in microscopy; the study of cells is called cell biology. Cell theory states that new cells are formed from pre-existing cells, and that the cell is a fundamental unit of structure, function and organization in all living organisms. It is one of the foundations of biology. History: The cell was discovered by Robert Hooke in 1665. He examined (under a coarse, compound microscope) very thin slices of cork and saw a multitude of tiny pores that he remarked looked like the walled compartments a monk would live in. Because of this association, Hooke called them cells, the name they still bear. However, Hooke did not know their real structure or function. Hooke’s description of these cells (which were actually non-living cell walls) was published in Micrographia. His cell observations gave no indication of the nucleus and other organelles found in most living cells. The first person to make a compound microscope was Zacharias Jansen, while the first to witness a live cell under a microscope was Antonie van Leeuwenhoek, who in 1674 described the algae Spirogyra and named the moving organisms animalcules, meaning â€Å"little animals†. Leeuwenhoek probably also saw bacteria. Cell theory was in contrast to the vitalism theories proposed before the discovery of cells. The idea that cells were separable into individual units was proposed by Ludolph Christian Treviranus and Johann Jacob Paul Moldenhawer. All of this finally led to Henri Dutrochet formulating one of the fundamental tenets of modern cell theory by declaring that â€Å"The cell is the fundamental element of organization†. The observations of Hooke, Leeuwenhoek, Schleiden, Schwann, Virchow, and others led to the development of the cell theory. The cell theory is a widely accepted explanation of the relationship between cells and living things. The cell theory states: †¢All living things or organisms are made of cells and their products. †¢New cells are created by old cells dividing into two. †¢Cells are the basic building units of life. †¢ The cell theory holds true for all living things, no matter how big or small, or how simple or complex. Since according to research, cells are common to all living things, they can provide information about all life. And because all cells come from other cells, scientists can study cells to learn about growth, reproduction, and all other functions that living things perform. By learning about cells and how they function, you can learn about all types of living things. Credit for developing cell theory is usually given to three scientists: Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow. In 1839, Schwann and Schleiden suggested that cells were the basic unit of life. Their theory accepted the first two tenets of modern cell theory (see next section, below). However, the cell theory of Schleiden differed from modern cell theory in that it proposed a method of spontaneous crystallization that he called â€Å"free cell formation†. In 1855, Rudolf Virchow concluded that all cells come from pre-existing cells, thus completing the classical cell theory. (Note that the idea that all cells come from pre-existing cells had in fact already been proposed by Robert Remak; it has been suggested that Virchow plagiarised Remak.) Modern interpretation: The generally accepted parts of modern cell theory include: 1.All known living things are made up of one or more cells. 2.All living cells arise from pre-existing cells by division. 3.The cell is the fundamental unit of structure and function in all living organisms. 4.The activity of an organism depends on the total activity of independent cells. 5.Energy flow (metabolism and biochemistry) occurs within cells. 6.Cells contain hereditary information (DNA) which is passed from cell to cell during cell division. 7.All cells are basically the same in chemical composition in organisms of similar species. Cell Parts and Their Functions Nucleus – Large Oval body near the centre of the cell. – The control centre for all activity. – Surrounded by a nuclear membrane. Nucleoplasm – is the protoplasm in the nucleus. – contains genetic material —> CHROMOSOMES (DNA) Nucleolus – is found in the nucleus. – contains more genetic information (RNA) Cell Membrane – the outer boundary of the cell. – it separates the cell from other cells. – it is porous —> allows molecules to pass through. Lysosomes – † suicide sacs † – small structures that contain enzymes which are used in digestion. – if a lysosome were to burst it could destroy the cell. Cell Wall ( Plant Cells Only ) – non living structure that surrounds the plant cell. – protects + supports the cell. – made up of a tough fibre called cellulose. Cyto Plasm – cell material outside the nucleus but within the cell membrane. – clear thick fluid. – contains structures called organelles. Vacuoles – are clear fluid sacs that act as storage areas for food, minerals, and waste. – in plant cell the vacuoles are large and mostly filled with water. This gives the plant support. – in animal cells the vacuoles are much smaller. Mitochondria – power house of the cell. – centre of respiration of the cell. – they release energy for cell functions. Chloro Plasts ( Plant cells only ) – contains a green pigment known as chlorophyll which is important for photosynthesis. Ribosomes – tiny spherical bodies that help make proteins. – found in the cyto plasm or attached to the endo plasmic reticulum. Endo Plasmic Reticulum ( ER ) – systems of membranes throughout the cyto plasm. – it connects the nuclear membrane to the cell membrane. – passageway for material moving though the cell. Golgi Bodies – tube like structures that have tiny sacs at their ends. – they help package protein.