Friday, August 21, 2020

Descartes’ Epistemology Essay

Cautiously clarify Descartes’ cogito and his endeavor to fabricate his insight structure starting from the earliest stage. (Be as brief as could be expected under the circumstances.) Does Descartes succeed or bomb in that endeavor? Legitimize your answer in full. Descartes’ Epistemology. This exposition endeavors to clarify Descartes’ epistemology of his insight, his â€Å"Cogito, Ergo Sum† idea (found in the Meditations), and why he utilized it [the cogito concept] as an establishment when constructing his structure of information. In the wake of clarifying the idea I give a short assessment of his achievement in presenting and utilizing this cogito as an establishment. At last, I give reasons why I think Descartes prevailing in his epistemology. The First Meditation started with Descartes choosing to utilize radical distrust in his journey of getting genuine information and this lead him to presume that he was unable to make certain of anything aside from that he knew nothing (Descartes, 1984:12-15). Implying that Descartes disposed of all his insight whether it was realizing that he had fingers, realizing that the physical world existed, information on his examinations and so on he started by recognizing how everything that established his biased information could be question commendable. This peak of uncertainty was established in one actuality: Descartes felt that there was valid justification to accept that a higher force could have beguiled him into accepting that his experimental and from the earlier information was conceivable. Since God is a more powerful that Descartes accepted to be all acceptable and never misleading, he named his backstabber the â€Å"Evil Demon† a direct inverse to his healthy perception of God (Blackburn, 2001:19). Descartes built up that the â€Å"Evil Demon† contention could wipe away any confirmation of his earlier information aside from one: his reality (Descartes, 1984:17). This was a decent contention since it introduced a very much idea out motivation to scrutinize his insight. Descartes contended that if a â€Å"Evil Demon† genuinely existed and is just centered around misleading him then this demonstrates he [Descartes] exists†¦ â€Å"If he is deluding me; and let him misdirect me as much as possible, he will failing to bring about that I am nothing inasmuch as I believe that I am something†¦ I am, I exist, is fundamentally obvious at whatever point it is†¦conceived in my mind† (Blackburn, 2001:20). It is conceivable to invalidate this meaning of presence in the formâ of: Do we guess that a reasoning thing exists since it has encountered considerations? As per the Second Meditation Descartes’ reaction would be that ‘I am, I exist’ stands just for a thing that is doing the reasoning now and if it somehow managed to stop figuring it would stop to exist out and out (Descartes, 1984:18). Also it isn't the reasoning that lead to presence, yet the presence lead to the reasoning. Descartes was happy to be examined concerning his insight into the world and to demonstrate that he genuinely looked for the right response to any protest that might be raised; he ignored all that he knew and began to fabricate a contention without any preparation to declare the information he would later acknowledge as precise. In this way, Descartes picked the cogito idea as an establishment that he could start to broaden his domain of comprehension on. From perception plainly Descartes just started his Meditations to fabricate an establishment of comprehension and since he had disposed of all his earlier information he required a strong base to start remaking on, subsequently the cogito idea exudes. â€Å"Cogito, Ergo Sum† is Latin for â€Å"I think, subsequently I am†. The cogito contention is as per the following: 1. An underhanded evil presence may be beguiling me into accepting that I don’t exist. 2. On the off chance that I accept that I don’t exist, at that point I exist. 3. I exist. This contention expresses that, â€Å"if I persuaded myself regarding something then I absolutely existed† (Descartes, 1984:17). This essentially implies anybody questioning their own reality or nearness for sure exists in light of the fact that with the end goal for uncertainty to happen there must be somebody to do it. A legitimate comprehension of the cogito idea implies perceiving explicitly the order wherein this ‘someone’ that is existing fits into and whether it is precise to state that the person in question exists. The contention, as Descartes introduced, doesn't give a substantial purpose behind the presence of the body or whatever else in the physical world, so we can't acknowledge that bodies exist. Neither does the cogito represent the presence of different personalities as that would involve information on the physical existence where different things exist. The cogito idea does notwithstanding; give a legitimate contention for the presence of the psyche or a reasoning thing that exists autonomously of the body. In hisâ novel Think, Blackburn clarifies the cogito idea as a methods for legitimizing the center of one’s presence as speculation, we acknowledge that idea exists not a ‘self’ (Blackburn, 2001:20). I concur with Blackburn since his [Descartes’] idea serves well to demonstrate that we exist as speculation things and regardless of whether we were to dispose of any from the earlier or a posteriori information, we can in any case embrace the cogito. The cogito idea stands paying little heed to exact information since it recommends the presence of thought without really connecting it to the body (which establishes a kind of experimental method of getting information through the faculties). Also, it very well may be acknowledged with no from the earlier information since Descartes just presented it in the wake of inferring that he knew nothing, and could just acknowledge information on his own reality as vindicated. To evaluate Descartes decision of establishment I will bring up certain issues that beg a clarification in regards to the cogito idea. Right off the bat, on the off chance that we possibly exist when thinking and the â€Å"Evil Demon† can control our insight into everything else, for what reason are our contemplations not helpless to his trickiness? In my viewpoint, the â€Å"Evil Demon† can beguile us in a specific way, that point is our reality, and we have built up that our reality prompts thinking. Descartes guessed that the ‘Evil Demon† may have affected our contemplations yet the idea he [Evil Demon] couldn't change is the idea of us thinking. For instance, if I somehow managed to toss a plastic ball into a reuse canister and it were dissolved and reshaped into a mug, in spite of the fact that the condition of the ball may have transformed it is as yet plastic and regardless of whether we dispose of its past express its current state shows that it is surely existing and I can't persuade the plastic that it never existed in light of the fact that it is in an alternate state. This model clarifies how our meaning of presence may have changed however the reality remains that we exist thus we think. My model is another method of expressing Descartes’ wax example(Descartes,1984:20-21), which as per Blackburn, he [Descartes] uses to affirm that with the cogito we can cement that our considerations exist paying little heed to them being irrelevant, different and not compelled to a physical body (Blackburn, 2001:21). A subsequent inquiry could be, in the event that we know(or as far as anyone knows acknowledge) that we are being misled by the â€Å"Evil Demon†Ã¢â‚¬ ¦ wouldn’t that imply that we knew about when we were not being beguiled by him thus before we set up our foundation(using the cogito idea), we had just acknowledged some information which lead to the establishment? I think Descartes would react by saying that the way that we can think about the â€Å"Evil Demon† and acknowledge that he is deluding us implies that we previously settled the cogito before proceeding onward to think about the real thought of a double crosser, again we see that any reasoning methods something existed to do it(the thinking). This reaction appears to introduce some prevarication however shockingly I imagine that any of Descartes’ reactions may move the weight of verification to the individual who brought up the issue. His contention, as I would render it, might be that the inquiry is going around and around and just raises uncertainty of his [Descartes] methods for gaining information and not in reality any issue with the cogito. This last reaction appears to credit Descartes accomplishment in building up that the cogito is an idea that gives us the best potential beginning to increasing any information. Indeed, even the information on a â€Å"Evil Demon† would mean we need to begin by tolerating that we exist (cogito) so as to demonstrate any of our insight as untrustworthy. A third and last inquiry seems to be, what type of information is the cogito and what other information would we be able to expand on this establishment? The cogito is a type of from the earlier information since we don't have to demonstrate its legitimacy by clarifying anything or drawing on a past encounter to demonstrate it. Descartes further utilized the cogito when securing the information on Cartesian Dualism, which is his subsequent stage of building information that is established in the cogito. Descartes said that Cartesian Dualism is supported by the cogito in light of the fact that we just know about a current ‘thinking’ element that has no body, consequently the body and the psyche ought to be seen as isolated and neither one of the ones can impact the other (Descartes, 1984:21). I think the cogito idea incites a feeling of personality that every one of our reasoning may contain and this character involves that as much as the â€Å"Evil Demon† may attempt to remove our insight we despite everything have that small something, as speculation creatures, that must be clarified as a presence. This element of our reality is insignificant, truly, however it drives us into deduction and believing is our beginning stage of increasing new information. Along these lines Descartes prevailing in his epistemology by picking â€Å"Cogito, Ergo Sum† as a base for his future information. Once the cogito is acknowledged Descartes can gain new information. In end Descartes’ procedures of building an information structure establishment was productive and ultimat

Tuesday, July 14, 2020

Alternative Views Of Intelligence Example

Alternative Views Of Intelligence Example Alternative Views Of Intelligence â€" Assignment Example > “Multiple Intelligence” Theory and its Educational ImpactIntelligence: Poorly Defined and Politically LoadedMost people would agree that some people are “smarter” than others: that is to say, that there is some kind of mental ability of which some of us have more, and others less. Beyond this very basic observation, however, consensus breaks down. Intelligence is something that we all sense exists, and yet it is extraordinarily difficult to define precisely. What, exactly, is intelligence? Andâ€"perhaps even more importantlyâ€"how can it be measured? Intelligence is a key component of our identity as humans. We are, after all, not the fastest creatures on Earth, nor the strongest, nor even the best looking; but we are by far the smartest species on our planet. To be more intelligent, then, is to be in some way more human; and conversely, to be less intelligent is to be less than fully humanâ€"to be, to some degree, an “animal”. It is unsurprising, then, that intelligen ce has long been used as a means of ranking peopleâ€"both individually and collectively. The topic of intelligence has thus become not only a scientific and philosophical question, but also a highly political one. Traditional Views of IntelligenceSince we firmly believe that “smarter” is “better”, and since we are endlessly obsessed with comparing ourselves to others in order to establish hierarchies of merit (preferably with ourselves and our peers at the top), it is only natural that we seek some way of systematically measuring intelligence. Further, a meaningful way to measure mental ability would be very useful to our modern, large-scale, bureaucratized educational systems. But until one hundred years ago, when Alfred Binet designed the first test of what eventually became known as “IQ”, there was no convenient means of quantifying intelligence (Reingold). Before Binet’s innovation, scientists attempted to measure intelligence through physical means; for example, they measured brain sizes by pouring lead shot into skull cavities, or measured the heads of living people. In some cases these researchers were attempting to validate supposed differences in the intelligence of various races and between men and women; they expected, of course, that white males would be shown to be the people with the largest brains, and thus, “obviously”, the most intelligent. In other casesâ€"including Binet’s own attempts to quantify intelligence by physical means, before he began to create performance-related testsâ€"racism and sexism were not involved. In any case, none of these efforts yielded meaningful results (Gould, p. 146; see also Chapters 2-4). The French government commissioned Binet to create a practical means of testing intelligence in 1904, in order to identify at a young age those children who were likely to have problems mastering school subjects, so that they could receive special education. Having already determined that physical testing was worthless for this purpose, Binet created what evolved into modern IQ testing. It is perhaps worth noting that IQ was invented in the service of an educational system thatâ€"since Napoleon’s dayâ€"has been known for a high degree of intellectual regimentation and inflexibility.

Thursday, May 21, 2020

Cloning Is Morally Wrong - 1400 Words

Cloning has been identified in two ways – Reproductive cloning and Therapeutic cloning. In reproductive cloning, â€Å"the created embryo is implanted into a human womb, leading to the birth of a human being† . Alternatively, therapeutic cloning creates human beings in embryo form, but the embryos are used for experimentation and eventually destroyed. Both ‘therapeutic’ and ‘reproductive’ cloning techniques create human life. I believe that life is sacred from conception, and must be valued. The embryo is valuable at the time of conception regardless of how the conception occurs. Therefore, therapeutic cloning is morally wrong because it creates life with the sole purpose of use for experimentation and ultimately, destruction. In this method, the stem cells are extracted for research and the embryo eventually dies. Pro-lifers have called this practice â€Å"technological cannibalism†. I think it is important to reflect on the reality of clones in this world. What is the process of cloning? If the process of cloning humans becomes a reality, what would the world look like? What would change, if anything in our daily lives? What do you think the clones would be used for? Would they be treated equally as naturally created human beings? These are important questions to meditate on as one establishes a position on the topic of cloning humans. The process of cloning is an ongoing research project, which is typically funded by government grants, unless researchers decide to use privateShow MoreRelatedThe Ethical Implications Of Science And Technology1147 Words   |  5 Pagesmight come next: human cloning. As reported in the article, â€Å"Clinton Bars Federal Funds for Human Cloning Research† by CNN, in 1997, President Clinton stopped all federal funding for cloning. â€Å"Clinton also called on privately funded researchers to voluntarily implement a temporary moratorium on human cloning research ‘until our bioethics advisory committee and our entire nation has had time to... debate the ethical implications’† (CNN). With scientific discoveries such as cloning many people rely onRead More Cloning Essay723 Words   |  3 Pages Is Human Cloning Ethical? nbsp;nbsp;nbsp;nbsp;nbsp;Imagine that you have just been diagnosed with lung cancer. You have been told you have six months to live unless you can find two replacement lungs. But, you are told and realize you are a clone and have to give your life to save another. Is that ethically right? Would you, the original human want to do it? I feel that cloning human beings is ethically and morally wrong. Cloning seems to be a big issue in the world today. The issues ofRead More The Benefits of Cloning Essay examples1063 Words   |  5 PagesThe Advantages of Cloning      Ã‚   People often question whether or not cloning is morally acceptable in our society, and also if it is worth all the money that we spend on research for cloning.   It is hard to believe that not to long ago many people believed that joining a sperm and an egg in a test tube was considered to be morally wrong.   It is now used by millions of doctors around the world.   Cloning is at the beginning stages of being considered morally unacceptable and will soonRead MoreThe Theory Of The Philosophy1354 Words   |  6 PagesKantian is regarded as one of the perfect theories ever as far as an issue of morality is concerned. The theory is based on the concept of what is morally permissible by many. This means that the theory defines whether an action is morally right or wrong by evaluating how it is permissible by many in the society. Kant, a German philosopher argued that what is accepted in the society is what makes people’s lives good and that is what is mor al. The theory states that even the simple things should notRead MoreGenetic Engineering : Medical Perfection Or Playing God1280 Words   |  6 PagesThesis Statement â€Å"Genetic engineering differs from cloning in key ways. Whereas cloning produces genetically exact copies of organisms, genetic engineering refers to processes in which scientists manipulate genes to create purposefully different versions of organisms—and, in some cases, entirely new living things†, duplication of genetic cells is known as human cloning. Development of genetic engineering biotechnologies undermines the natural autonomy of life. Does genetic engineering interfereRead MoreThe s Natural Law Theory1219 Words   |  5 PagesWith all the lectures and readings that we learned about this last seven weeks, I see that Christians are adapting to society s views by my fellow classmate’s discussions and posts. The specific challenges that I will discuss are: Birth control, cloning, genetic engineering, and homosexuality. Hopefully by the end of this paper I would have given you enough explanation to why I agree or disagree with these scientific enhance ments that are occurring in the world today. In order to get my point acrossRead MoreThe Importance Of Cloning768 Words   |  4 PagesThe article by Leon Kass, â€Å"The Wisdom of Repugnance†, states that cloning is morally wrong because it puts humans in the place of God. Cloning used to not be a big problem because it was not possible, but with technological advances making it possible, it has become a moral problem. Kass addresses this problem in his article when he writes: â€Å" In a world whose once-given natural boundaries are blurred by technological change and whose moral boundaries are seemingly up for grabs, it is much moreRead MoreCloning Essays1271 Words   |  6 PagesCloning The most significant problem our world has with newfound controversies is that most people take one side on the issue before they become educated on the topic at hand. This is the same problem that I see with the controversial issue of cloning. Whether one argues for or against the cloning of humans or animals, most people leave out the ethics and morals behind the issue. People see movies like Multiplicity, starring Michael Keaton (a movie in which Michael Keaton clones himselfRead MoreThe Prospect Of Human Cloning1295 Words   |  6 Pages The prospect of human cloning was introduced in February 1997 when an embryologist was able to produce a lamb through the process of cloning. Once the lamb was cloned, the question of whether research for human cloning came into being. Society and researchers have feuded over whether human cloning should be banned or allowed for research and reproduction purposes. Each side has reasonable ideologies to continue their stance towards the opposi ng argument. Pro- cloners believe that the research developedRead More The Sins of Cloning Essay1319 Words   |  6 PagesSins of Cloning   Ã‚  Ã‚   See you in two years with your cloned child, says the doctor to his patient. Such a statement sounds so bizarre and futuristic, but scientists believe cloning is no longer the realm of science fiction (Virginia, Sirs). Its just a matter of time before the first cloned [humans] (Virginia, Sirs). Although this practice does not seem dangerous, cloning should be banned because it takes away the individual importance of human beings, is too risky, and also morally wrong

Wednesday, May 6, 2020

Why Gender Neutral Restrooms Are A Controversy - 1387 Words

Why Gender Neutral Restrooms Are A Controversy Some people may be confused as to why gender neutral bathrooms are a controversy. This controversy stems from the trans* rights movement’s desire for safety and acceptance. Trans*, short for transgender, is an umbrella term that is used to describe people who identify as a gender they were not assigned at birth, this includes female to male, male to female, agender, and non-binary individuals while cisgender, cis for short, is used to describe someone who identifies with the gender they were assigned at birth. Some trans* individuals many pass as their identified gender and face harassment in the restroom if they are outed as trans*, likewise some trans* individuals do not pass or have not†¦show more content†¦Many arguments against gender neutral restrooms are backed in ignorance and fear of transgender issues and what trans* means. These people believe that transwomen are men in dresses and transmen are tomboys, that ge nder is binary and rigid. A way to help people accept gender neutral bathrooms is to educate people on trans* issues and what trans* is. To teach people that transwomen are women - not men in dresses, that transmen are men, that gender is not binary, that gender is fluid, that gender identity and gender expression are two different things, that being trans* is not a mental illness. Many people are simply not aware or understand what it means to be transgender. In the Autumn of 2015 a Missouri town was divided when transgirl Lila Perry started using the girl’s restroom and locker room, even after the school offered a single stall restroom. Students gossiped and eventually parents raised concern at a school board meeting, they asked the school to stop giving privileges to â€Å"confused teenagers who want to be something they are not sexually. The parents did not get the response they wanted so they and some students organized a student walk out;before this even happened Lila dropped gym class because she feared for her safety. Sydney Dye, a high school senior who helped organize the walk out says â€Å"This protest wasn t out to bully Lila or call her out on anything or try to make her

Daimler Chrystler Free Essays

Mergers and acquisitions take place to realize the synergies between the two or more companies. Why do you think the Daimler- Chrysler merger failed to realize the synergies that were expected from the merger? If mergers and acquisitions take place to realize the synergies between the two or more companies then Daimler- Chrysler were heading for failure from the beginning itself. The merger was not just between the companies but between two drastically opposite cultural bodies. We will write a custom essay sample on Daimler Chrystler or any similar topic only for you Order Now While Germany was characterized as a society that lays importance to success, money and material possessions and that which feels threatened by ambiguity, the American culture is characterized as individualistic, where people value having a high opportunity for earnings and getting recognition they deserve for a good job. They do not feel threatened by uncertainty. The merger between these two companies was followed by an agreement to let each of their cultures and practices prevail and to manage the new found entity Daimler Chrysler in that manner. The companies failed to address their differences and caused a sense of uncertainty in the minds of employees from both companies. While the Germans think through each and every step involved in decision making and implementation and the Americans lacked the urgency to build that sense of security for themselves. Lack of open communication, corporate cultural clash, inadequate planning, a laid back leadership bench at Chrysler, differences in leadership and management styles and over all organization culture gave room for doubts about their ability to make the merger work. The merger seemed more like an empire building exercise by Juergen Schrempp. Daimler did not look into the facts and figures and draw a map for the future of thenew found company and to a certain extent this ambiguity created havoc. Daimler and Chrysler were each strong players in their market but failed to diffuse their differences and create a company that had the potential to compete for a far bigger market share. Q2. Many a cross cultural merger has failed because proper attention was not given to the difference in cultures between the two companies. What issues must be addressed to make a cross- cultural merger a success? There are plenty of examples of how mergers and acquisitions failed in the past. Roughly two thirds of big mergers lose value at the stock market. All motivations that lead to the merger prove false once the process is done and any cost benefit from the premium paid will become evident as overestimated. Having said that, a cross cultural merger would have that much lesser chance to survive and reap profits compared to the similar culture mergers. Apart from miscalculations about economies of scale and revenues, the company has to deal with the cultural aspect that will affect the business day in and day out. To make any cross cultural merger a success there has to be an audit of the characteristics and cultures of the two companies. Unless an audit is done, one would be uncertain of how different or how similar the companies are; the level of compatibility will be unknown. Any planning done without this vital information will only lead to the way to disaster as in the case of Daimler-Chrysler. A deal that makes financial and cultural sense is the only deal that will stand the test of times and reap benefits of the merger. Moreover, a strong leadership bench is absolutely important. It is the people who take decisions that make or break a company. For example, the mergers between Daimler and Chrysler wouldnot have taken such drastic shape if Chrysler had a competent and strong leadership bench. Daimler had intentions of taking over Chrysler from the very beginning of negotiations but Chryslers management was not able to hold their position and did not do enough due diligence to ensure the motivation behind the merger was mutual. Even after the merger, the change in leadership at Chrysler gave way for Daimler to dominate and turn things around for themselves. Lastly, the employees of both companies should assimilate cultures and working patterns such that there is no shock later. Training and planning and implementation of the plan have to be carried out. The merger process must be carried out together by both the companies. Q3. Very often companies involved in a merger claim it to be a merger of equals but this is not the case always . The Daimler-Chrysler deal was never expected to be a merger of equals . Comment . The manner in which the dealings in Daimler-Chrysler merger have been carried out is clear evidence that this merger was never meant to be among equals. Daimler obviously did not have any intentions to work hand in hand with Chrysler. The comments made by Juergen Schremppare evidence that he had hidden the real motivation to have initiated the merger process. The dealings that followed- no concrete plan of integrating Chrysler and Daimler, the change in organization structure in Chrysler, the losses that Chrysler incurred, the loss of employment at Chrysler etc shows that Daimler saw Chrysler as the reason for loss. Had this been a merger of equals, there would have been proper measures to smoothen out the process of integration and ensure the communication was open. Daimler-Chrysler would have had chalked a plan for the integration process and assimilated their management style. Moreover there would have been a management team who would look into implementing the merger process ensuring that events that occurred at Chrysler would not have occurred- (Loss of leaders, appoint of Daimlers executive as Chryslers head of management, no presence of Chrysler inthe supervisory board of management, Chrysler reduced to an operating division, Chrysler sailing division called for retrenchment). Daimler had intended to use Chrysler for it facilities and never intended to make it a partner in decision making and growth plans. Most importantly what is the motivation behind the merger or acquisition is what decides the fate of that merger. In this case, it was clearly not a case of mergers between equals. Daimler- Chrysler did not use its resources to create synergies and one of the companies had to end up being absorbed into the other. How to cite Daimler Chrystler, Papers

Friday, April 24, 2020

The Basics of the Electron Transport Chain Essays - Biology

The Basics of the Electron Transport Chain Article Summary:The electron transport chain is the most complex and productive pathway of cellular respiration. Here's a straightforward, simplified explanation of how the ETC works. All living things run on energy. If the organism is a plant or autotrophic microbe, the energy comes from sunlight. For all other forms of life, energy is extracted from nutrients through the reactions of metabolism--cellular respiration. Cellular Respiration the Electron Transport Chain Regardless of whether the original form of energy is sunlight or food, it must ultimately be converted to the cellular energy currency of adenosine triphosphate (ATP). or most organisms, this conversion is accomplished though cellular respiration, a series of biochemical pathways in which glucose (asugar) is broken down and the energy extracted is converted to ATP. The pathways of cellular respiration include: 1. glycolysis, 2. conversion of acetyl-CoA, 3. Kreb's cycle 4. electron transport. Electron transport is the most complex and productive pathway of cellular respiration. Duringaerobic respiration, the ETC produces 34 of the 38 ATP molecules obtained from every molecule of glucose. or most organisms, this conversion is accomplished though cellular respiration, a series of biochemical pathways in which glucose (asugar) is broken down and the energy extracted is converted to ATP. Where the Electron Transport Chain Is Located Electron transport requires a membrane in order to work. Inprokaryotic cells, those of bacteria and bacteria-like Archaeans, electron transport takes place in the cell's plasma membrane, in folded areas called mesosomes. For most organisms, this conversion is accomplished though cellular respiration, a series of biochemical pathways in which glucose (asugar) is broken down and the energy extracted is converted to ATP. The pathways of cellular respiration include: 1. glycolysis 2. conversion of acetyl-CoA 3. Kreb's cycle 4. electron transport. Electron transport is the most complex and productive pathway of cellular respiration. Duringaerobic respiration, the ETC produces 34 of the 38 ATP molecules obtained from every molecule of glucose. Whichever type of membrane houses the cell's electron transport chains (plasma membrane, inner membrane of mitochondria or the tylakoid membrane of chloroplasts)cells have many ETCs running continuously, to produce the ATP energy required for cells to survive and thrive. How the ETC Works Most of theATPmade incellular respiration comes from the stepwise release of energy, of a series of oxidation-reduction reactions between molecules embedded in the plasma membrane(prokaryotes)or mitochondria(eukaryotes). It is easiest to understand how electron transport works by dividing this process into three main events: 1.Oxidation Reduction Reactions During glycolysis, synthesis of acetyl-CoA and Kreb's cycle, the electron carriers NAD+ and FADH are reduced to form NADH and FADH2 respectively. These molecules are like little rechargeable batteries, and when NAD+ and FADH are reduced, this means that they accept and carry electrons and hydrogen ions (H+), potential energy that can be used later in cellular respiration. In the electron transport chain, these electron carriers are oxidized, transferring their electrons to the carrier molecules embedded in the ETC membrane. In aerobic respiration, these electrons are passed from one carrier molecule to another in a series of oxidation-reduction reactions, and ultimately to the final electron acceptor, oxygen (O2), that combines with hydrogen, resulting a water (H2O), a metabolic waste product. 2.Creation of Hydrogen Ion Gradient The energy from each electron being passed down the chain is used to pump a proton (H+) through each carrier molecule, from one side of the membrane to the other. This creates a proton gradient, a type ofconcentration gradient(difference in concentration of a substance between two sides of a membrane), and gradients are potential energy available for cellular work. 3.Phosphorylation of ADP(The payoff!) The hydrogen ions (H+), on the side of the membrane where most concentrated, will eventually flow back across the membrane, down the proton gradient, through anenzymecalledATP synthase. As each H+ moves back across the membrane, the enzyme ATP synthase phosphorylates (adds a phosphate to) adenosine diphosphate (ADP) to make the high energymolecule ATP, which can be used for many different energy-requiring reactions throughout the cell. Taken from : http ://www.scienceprofonline.com/metabolism/electron-transport-chain-cellular-respiration-3.html 10 QUESTIONS How does the ETC works? If the organism is a plant or autotrophic microbe, the energy comes from sunlight. For all other forms of life, energy is extracted from nutrients through the reactions of metabolism--cellular respiration. Which are the pathways of cellular respiration? glycolysis conversion of acetyl-CoA Kreb's cycle electron transport. During aerobic respiration ,how many