Cell Structure and Function essays

Cell Structure and Function essays All living things are made of the same basic building blocks, cells. A human is made of 65 trillion cells. Cells are everywhere, on you skin, in your blood, and even on your tongue. In fact, your blood is clear but red blood cells are what make your blood red. Most living things are made up of many cells but some are made of only one cell, like amebas, paramecium, fungi, protists, monerans, and bacteria. There are two basic types of cells, animal cells and plant cells. They have some common parts found in both and other parts that are unique to each. A cell membrane is found in both plant and animal cells. It is the structure that surrounds the cell and protects it. Plant cells have a cell wall, a rigid structure surrounding the cell membrane. Animal cells do not have a cell wall. Cytoplasm is the thick, jelly-like substance that makes up most of the cell. Vacuoles are fluid filled sacs in the cell. The vacuoles contain stored water or food that will be used by the cell. Cells also contain other "small organs" called organelles that carryout various cell functions. And then there is the control center of the cell, the nucleus, surrounded by a protective outer covering call the nuclear membrane. The nucleus contains the DNA, or chromosomes, that carries all the instructions on how a cell will function, live, and reproduce. Every cell needs to energy to live and reproduce. Plant and animal cells obtain energy in different ways. Animals can not make their own food. They obtain energy by taking in food, water, and oxygen and converting it to sugar. Sugar is the only food a cell can eat. Plant cells can make their own food from water and sunlight. This process is called photosynthesis. Both plant and animal cells use energy from the food they obtain to reproduce. All living things produce more living things. Cell reproduction is called mitosis. Mitosis is the process ...

MBA application essay

MBA application essay MBA application essay The first step to writng a good MBA essay is to analyse what the MBA application essay question is asking. To do this you need to take a keen look at the keywords of the topic to arrive at the right approach. Business essay topics can ask you to: Compare and Analyze Discuss and Criticize Explain and Illustrate An MBA application essay that asks you to examine how electronic media has redefined the marketing scope of a product would require a deep analysis of the topic to be researched and written about after proper investigation. If your MBA application essay asks you to discuss an issue then you need to shortlist the main views on the subject and give reasons for and against each view. The choice is yours Sometimes an MBA application essay will allow you to choose your own topic, in which case you should write on an area in which you are an interested expert; that way you can enjoy writing an MBA application essay that gets you where you want to be. Once you arrive at the topic focus- on a central point or issue throughout your MBA application essay: Research is the key Go to the Business Studies section of your library and get a hold of key references on the topic. The time you spend reading and taking notes will add breadth and depth of knowledge to your MBA application essay. You can also access source material from a reputable site online. Include sources like: Relevant articles and case studies Access information from credible sources like the Journal of Marketing Explore sites like Questia that provide plenty of resources on a variety of business topics. Conduct interviews and surveys to obtain a deeper insight into the topic of your MBA application essay Keep a record of page numbers, the title, author, and publisher along with the date and place so that you can give a list of all the readings in a Works Sited or reference page. Make an outline plan of your essay with diagrams and bullet points that flow logically from one another Use business terminology to get to the point in the first draft of your MBA application essay-do not ramble on unnecessarily to sound contrived and clever Follow these tips for an outstanding MBA application essay. Interesting topics: Thesis Methodology American History Thesis Islamic Religion Term Paper 15 Page Term Paper Research Paper Proposal

Compare and contrast how foreign antigens are recognised by the innate Essay

Compare and contrast how foreign antigens are recognised by the innate and the adaptive immunity - Essay Example The innate immunity system is composed of four main components each of which contains a large number of different types of cells. These four main components are: Phagocytes, Interferon, Compliment system and Natural Killer cells. The innate immunity is non-specific and targets every foreign antigen that it is exposed to. Also the response to these foreign antigens is very rapid. Mast cells of the innate immunity system release histamine which causes inflammation and dilation of the capillaries to allow the needed action. Adaptive immunity also aims to protect the body against infectious particles however the mode of action and the components involved are quite different from that of innate immunity. The adaptive immunity is very specific recognizing and acting against a specific antigen. The response against the antigen is quite slow when compared with the innate immunity and there is a time delay between the onset of antigens and the action taken by the adaptive immunity. The action however is targeted and once it is taken, it leads to rapid removal of antigens from the body. In both the innate and the adaptive immunity, the response to the foreign antigens takes place in two phases: the activation phase and the effector phase. The activation phase is very similar in both of these systems. During the activation phase, antigens are presented by the Major histocompatibility complexes to the T-cells. In the innate immunity the antigen is presented to the cytotoxic T cell which after recognizing the signal proliferates and produces perforin in order to lyse the infected cell. On the other hand, in the adaptive immunity, the antigens are presented to T-helper cells. The helper cells release cytokines which allow it to proliferate into clones. These clones then act on individual B-cells which cause them to proliferate and differentiate into either plasma cells or memory cells. Like the innate immunity, the adaptive

Equity & Trust Essay Example | Topics and Well Written Essays - 2500 words

Equity & Trust - Essay Example It has to be understood that the term 'Law' implies an act enacted and passed in Parliament (statutory law) and the common law (principles established by judges in previous trials, procedures and conclusions) in the process of deciding on litigations. The most important dissimilarity between law and equity is the difference in remedies that both offer. While laws equip the court with the necessary set of instructions that enable the court to draw monetary compensations for the damages cased to the plaintiff, the equity enables the court to order injunctions or decrees that direct someone to act or not to act in some particular manner. Often, it is this form of order that is more practical to the plaintiff and provides more convenient remedies to the sort of problems raised by the plaintiff in the court of law. A plaintiff who has lost his baggage in a particular place may seek to get it back from the place and not the monetary value of the contents of the baggage. What marks the distinction between an equity and a law is the non-availability of a jury in the former. Equitable remedies can be decided upon exclusively by a judge, as it is a matter of law and not subject to intervention. Hence the intervention of a jury as a trier of facts is impossible to come by. Legal and equitable remedies are thus distinct in their nature and scope and this factor is well deliberated upon in modern legal systems of progressive states such as the United States of America. The right of trial by jury in a civil dispute in the United State is governed by the Seventh Amendment of the American Constitution. Hence the question of a trial by jury depends on the nature of relief the plaintiff has sought in his prayer before the court. If he is seeking a monetary benefit in lieu of the wrongs done to him, the matter can be decided upon by a jury since the matter is considered legal. But is cases where the prayer is for specific performance or non-performance, and areas where the intended award is an injunction, declaratory judgment, modification of contract etc., then the matter is treated to be solved by equity. Hence in such areas, the jury is not allowed. The foremost distinction between a law and equity is the source of the governing rules from which the decisions are arrived at. In law, the decisions are derived from a set of governing rules that are well laid out in long hand and approved by the government. Where as in the case of equity, it only has general guidelines known as the maxims on equity. It is due to this factor that the equity is deeply rooted on fairness and flexibility. An important criticism that equity has is that since there are no prior written guidelines, the lord chancellor can give a ruling according to his conscience. This open endedness led to the wrapping up of the provision and its being included in to a consolidated system of precedents much like its cousin - the Common Law by the 17th century. History of Equities and Trust The distinction betwe

A Confederacy of Dunces :: essays research papers

Journal One: A Confederacy of Dunces Chapter One: Plot: Ignatius waited for Mrs. Reilly outside the department store. A policeman attempted to apprehend Ignatius; a mob ensued with the result of an old man being arrested for calling the policeman a communist. Mrs. Reilly and Ignatius escape to a local bar in which the bartender treats them with a lack of respect as well as eavesdrops on their conversation about Ignatius’ trip to Baton Rouge. The old man, Claude Robichaux, was brought before the police sergeant as well as the officer who brought him in. A black man named Jones made comments during the man’s â€Å"interrogation† and was repeatedly told to shut up by name, giving the idea that this wasn’t the first time Jones had been there. Returning to the Night of Joy bar, Ignatius’ mother sells her hat to a young gentleman for fifteen dollars while Ignatius tells his bus story to a regular customer by the name of Darlene. Mrs. Reilly has a little too much to drink and begins to weave a tale of domestic mistreatment by her boy and Darlene loses interest in Ignatius. Ms. Lee, the bar’s patron returns from a few hours of shopping and kicks the Reillys out of the bar. When Mrs. Reilly tries to drive away from the city, she demolishes a Voltzwagon parked behind the massive ’46 Plymouth and crumbles a balcony of a building she hits. The officer from Ignatius’ previous incident ends the chapter with his arrival in a most awkward costume, punishment for his earlier dealings. Character: Ignatius is a highly intelligent, socially awkward, and interesting character. Plump and at least a little bit apprehensive towards the world in general, he wears an odd assortment of clothing and pines for his lost lumber jacket. He is 30, unemployed and lives with his mother. He spent eight years of college getting a masters degree in an as of yet undisclosed discipline, possibly having to do with medieval history based upon his one known job interview with the head of Medieval Studies in Baton Rouge. Mrs. Reilly is Ignatius’ mother. She has arthritis of the elbow and shows a genuine interest in the well being of her child while on the same time feels a slight feeling of resentment of his overpowering each and every conversation as well as the trouble he finds himself in. Claude Robichaux was the old man who tried to defend Ignatius by calling the policeman a communist.

Jurisdiction of courts on internet Essay

Facebook is a social networking website whose growth has been rapid and with a lot of controversy. It is quite perceptible that the social networking site can be classified as interactive. Friends’ requests and live chart sessions, group invitations, friend requests, group requests, updates notifications inter alia make this site interactive. Facebook has more than 400 million users; an average user has over 130 friends, a user creates over 70 pieces of content monthly and there are more than 25billion shared content-ranging from photo albums, new stories, and internet links among others. Activity on Facebook is very high (if not the highest), the site falls under jurisdiction internationally (long-arm jurisdiction). The concerns on Facebook emanates from privacy issues, juvenile safety, data mining, the use of promotion and advertising scripts, and account terminating procedures. The issue of intellectual property is also pertinent to personal jurisdiction laws. Facebook changes on the terms of use have also stirred legal concerns. The giant social networking site has tried to make amendments on the terms of use but has not completely succeeded. Initially the terms of use allowed Facebook the freedom to use personal information with no regards to the users (Open Rights Group 2009). For the court to obtain personal jurisdiction some specific elements have to be considered. Minimum contact requirements must be met, there must be a due judicial process and the defendant’s substantial rights must not be violated. This is done by first deciding on whether a website passes the interactive-passive test. Personal jurisdiction is varied and sometimes the defendant is subjected to the plaintiff’s laws-in a supranational context. The long-arm statute gives courts jurisdictions over out-of-state individuals or firms whose activities touch on locals. The long arm jurisdiction has a long history from the Zippo Manufacturing v. Zippo Dot Com, 952 F. Supp. 1119 (W. D. Pa. 1997) (Rosenthal 2003). the case gave a basic precedent of answering the question of long-arm statute. In regard to divergent interpretations of the long-arm statute, respective state laws should be examined in deciding on whether a nonresident defendant is under the jurisdiction of a state and on whether they are answerable in that state’s court. Long-arm jurisdiction is concerns web page creators since it is applicable internationally. The application of long-arm statute becomes blurred when the court is not able to decide on the interactive-passive distinction. According to Wolf advertising alone is not enough to confer personal jurisdiction (Wolf 1999). Conclusion Web owners may be subjected to personal jurisdiction if the website contains; personal information which can solicit business; if the page violates federal law by using or passing personal information to solicit or receive donations and publishes defamatory information.

Chemistry Definition of Gas Constant (R)

Chemistry and physics equations commonly include R, which is the symbol for  the gas constant, molar gas constant, or universal gas constant. The Gas Constant is the physical constant in the equation for the Ideal Gas Law: PV nRT P is pressure, V is volume, n is the number of moles, and T is temperature. Its also found in the Nernst equation relating the reduction potential of a half-cell to the standard electrode potential: E   E0  - (RT/nF)lnQ E is the cell potential, E0 is the standard cell potential, R is the gas constant, T is the temperature, n is the number of mole of electrons exchanged, F is Faradays constant, and Q is the reaction quotient. The gas constant is equivalent to the Boltzmann constant, just expressed in units of energy per temperature per mole, while the Boltzmann constant is given in terms of energy per temperature per particle. From a physical standpoint, the gas constant is a proportionality constant that related the energy scale to the temperature scale for a mole of particles at a given temperature. Units for the gas constant vary, depending on other units used in the equation. One common value is  8.3145 J/mol ·K. Value of the Gas Constant The value of the gas constant R depends on the units used for pressure, volume and temperature. R 0.0821 liter ·atm/mol ·KR 8.3145 J/mol ·KR 8.2057 m3 ·atm/mol ·KR 62.3637 L ·Torr/mol ·K or L ·mmHg/mol ·K Why R Is Used for the Gas Constant Some people assume the symbol R is used for the gas constant in honor of the French chemist Henri Victor Regnault, who performed experiments that were first used to determine the constant. However, its unclear whether his name is the true origin of the convention used to denote the constant. Specific Gas Constant A related factor is the specific gas constant or individual gas constant. This may be indicated by R or Rgas. It is the universal gas constant divided by the molar mass (M) of a pure gas or mixture. This constant is specific to the particular gas or mixture (hence its name), while the universal gas constant is the same for an ideal gas.