Diploma Biology Notes Essay Example for Free

Diploma Biology Notes Essay deoxyribonucleic dit is a huge information database that carries the complete set of instructions for making all the proteins a prison cell bequeath ever need Although there are only four different bases in DNA (A, C, G and T), the order in which the bases occur determines the information to hire a protein, just like the 26 earn of the alphabet combine to form words and sentences Compare RAT TAR ART same 3 letters completely different meanings. And with DNA GAC AGC CGA same 3 letters completely different meanings to the cell (specifies the amino acids Aspartic Acid, Serine, and Arginine)Q Review What are elements?A The DNA in each chromosome that DOES provide the instructions for a protein is called a gene. * In the 1940s, scientists proposed, fairly correctly, that each gene codes for (contains the instructions for) one protein. This is referred to as the one-gene, one-protein hypothesis. * One gene will code for perhaps two or more rel ated proteins. * Scientists realized that we had only or so 30,000 genes, coding for 100,000 different proteins rather than the 100,000 genes that had been estimated for the human genome * The basic hypothesis is until now the same, but we know a lot more details. Q If DNA is in the nucleus and proteins are synthesized in the cytoplasm, on ribosomes and in the RER, how to they bestow together? A The answer use a messenger to carry the instructions from DNA break into the cytoplasm. A nucleic acid very similar to DNA, called mribonucleic acid or messenger ribonucleic acid, is a copy of a gene, and serves this function the bridge among DNA and protein The Central DogmaDNA encodes the information to make RNA and RNA molecules function together to make proteinII. What is RNA and how is it different from DNA?Two big differences between DNA and RNA* 1. The sugar in DNA is deoxyribose in RNA it is ribose * 2. The nitrogenous base uranium (U) is employ in RNA in place of T (they are very similar bases in RNA U= A just like T = A.)III. Transcription Re-writing DNA into RNADNA has a sense strand and an antisense strand. The antisense strand is complementary to the sense strand. It is also known as the scout strand, as this is the strand, which is used for transcription making mRNA. DNA is transcribed or re-written into RNA in a very complicated process called transcription. Simply stated, during transcription, one gene (DNA) is re-written into RNA in the nucleus * A team of enzymes and proteins binds to the promoter, or starting region, of a gene. * These enzymes and proteins unzip the DNA double helix just at the region of the gene. * The enzyme RNA polymerase uses one of the DNA strands to make an RNA copy of that one gene. * This copy, which contains the instructions to make 1 protein, is called an mRNA or messenger RNA. * After the mRNA is made, it is trimmed down to a final exam size, and shipped out of the nucleus. * When the mRNA gets into the cytopla sm, it is made into protein * Complete transcription of an RNA molecule.1. The resulting RNA nucleotides are added on the 3 displace of the growing of mRNA strand. 2. RNA polymerase detaches itself and mRNA is released.3. Eukaryote pre- mRNA contains exons and introns* Introns are non-coding regions that need to be removed before interpretingThe structure of tRNA matches its functions Funtion to bring amino acids from the cytoplasm to the growing polypeptide and to bring together them in the current location. tRNA is activated by a tRNA activating enzyme. tRNA delivers amino acids to the growing polypeptide chain in translation.It picks up new amino acids when activated by a special(prenominal) tRNA activating enzyme.IV. Connection between mRNA and proteinThe order of the bases in the DNA specifies the order of bases in the mRNA, andThe order of bases in the mRNA specifies the order of amino acids in a protein. The genetic code is a triplet code (handout)1. Nucleotides on mRNA are read three at a era by the ribosome. * Every three nucleotides in an mRNA (a codon) specify the addition of one amino acid in a protein. * For example, a 600 nucleotide mRNA will code for a 200 amino acid protein. 2. The amino acids corresponding to all 64 codons have been determined. all proteins start with the initiation codon AUG (Met) * All proteins end with stop codons -either UAA, UGA, or UAG * Some codons that differ in the third nucleotide potbelly still code for the same amino acidThe genetic code chart represents the sequence on the mRNA codon. V. Translation = De-coding RNA into proteinDuring translation, the mRNA transported to the cytoplasm is de-coded or translated to produce the correct order of amino acids in a protein. Translation requires numerous enzymes. rRNA = ribosomal RNA these RNA molecules associate with other proteins to form the ribosomes. Each ribosome can accept two tRNAs at a time (carrying amino acids) and one mRNA. tRNA = transfer RNA small RNA molecules that carry a specific amino acid at one end and an anticodon region that recognizes and binds mRNA at the other end. The tRNA that binds to that mRNA codon determines what amino acid is added to a protein chain. The deuce-ace RNAs (mRNA, tRNA, and rRNA) all work together to turn the information in DNA into a 3-dimestional protein.The steps of translation1. Initiation mRNA enters the cytoplasm and becomes associated with ribosomes (rRNA + proteins). tRNAs, each carrying a specific amino acid, pair up with the mRNA polys inside the ribosomes. Base pairing (A-U, G-C) between mRNAcodons and tRNA anticodons determines the order of amino acids in a protein. 2. extension addition of amino acids one-by-oneAs the ribosome moves along the mRNA, the tRNA transfers its amino acid to the growing protein chain, producing the protein codon by codon 3. landmark when the ribosomes hit a stop codon UAA, UGA, or UAG the ribosome falls apart. The same mRNA may be used hundreds of times during translation by many ribosomes before it is broken down by the cell.

Toyota Recall Essay Example for Free

Toyota Recall EssayThey have concluded that a precision-cut steel reenforcement bar (Consumer FAQ, 2010) needs to be installed on the pedal for it to eliminate whatsoever unnecessary friction that is causation the pedals to stick. Toyota is ensuring that the installation of the steel reinforcement bar is a permanent doctor up and will eliminate the focus between the two surfaces and the pedals will no longer stick. Toyota has also done the following to reach their customers and require care of the recall issue 1 . They have mailed letters to all owners of vehicles involved in the recall. The letter contains specific instructions on what to do to involve their vehicles fixed. 2. Many Toyota dealerships have ext stopping pointed their expediency hours in golf club to meet the needs of the consumers. 3. Within those dealerships they are working to improve customer traffic by expediting repairs, offering free car washes, oil changes and follow up maintenance service. 4. In order to support its dealerships Toyota has provided financial help to cover any additional costs related to the recalls. All with the end consumer in mind.They want their customers to be able to resolve the issue as quickly and conveniently as possible. 5. Toyota has put together informational videos, campaigns and press releases describing the problem and advising their customers of the risks associated with the recall and advising them of quick a solution. 6. They are working closely with CTS on future manufacturing processes to avoid any additional problems.Overall, yes I think Toyota is handling the problem to the outperform of their ability and ssues and are guaranteeing that their simple fix to their poor design is a permanent fix. They are working with CTS to improve the design and future manufacturing practices for their parts. They are supporting their dealerships, doing what they can to keep the customers involved and informed of spick-and-span findings. They are putt ing their customers first. I do think their efforts are limited they can only fix so many cars at a time, I believe Toyota will be more discriminating on who they choose to manufacture their parts from now on.Like the old saying says you live you hornswoggle Toyota was focused n becoming the number one automaker in the world and once it obtained the designation it may have forgotten why they became the number one automaker in the world, which was quality. In my touch they are handling the problem with class and integrity. Once you fall all you can do is get up and keep walking and that is exactly what Toyota is doing. This recall only affected 8 of their Toyota models, not any others or other lines such as their Lexus brand or their scion.

This House believes dumbing down Essay Example for Free

This House believes dumbing down EssayIs harming children. It is my imprint that video has overstepped its boundaries. It is my belief that children ar becoming desensitised towards violence. It is my belief that this is to stop. What if I was to report you that there are, today, half as many fine art programmes as there were in 1992? What if I was to tell you that current affairs programmes have fallen by more than a third? The truth is that all television executives neediness to do is make money, they do not want to provide a service, and they do not want to make the world a better place. And the reason that these programmes do not make money is the change of our childrens cultures.They no longer want to pump a programme that is educational they would rather watch meaningless rubbish that caters for the intellectually challenged. I write out this because I am guilty of it. I would much rather watch the ninth serial publication of friends than watch the news, and I would much rather watch the Simpsons than watch an art programme. Let me describe to you a period. In this time period television is useful shows provide a public service whilst tranquil maintaining good ratings. In this time television has a purpose, which it lacks in this modern time. This time was when television was starting produced.Its maker intended it to inform the masses about day-to-day events and problems, but this ideal has spiralled out of control. Your children are becoming desensitised, not only to sex, regularly displayed before the watershed, but to violence as well. Children growing up impart become young men, and these young men will copy what theyve seen on television. You all know what impressionable young children are capable of. It has happened recently a trio of hoopsters, barely twenty, gunned down dickens innocent girls at a New Year party as a result of gang warfare.These volume have to get their ideals somewhere, and if they are not in a strong family th ey will account to other mediums for guidance, like television, like videogames, and they will think the things are idols do are alright. Let me tell you this is not the case Just recently there has been a story running in coronation Street of a murderer and a drug dealer, and in the final episode two mass were graphically murdered with a crowbar And this was at seven thirty, well before the watershed. We are in the year of the couch potato. 78 % of people under sixty in the United Kingdom watch more television than read books.And if this television is of the aforementioned quality accordingly this disturbs me. What about the literary skills that will be wasted? TV Quiz shows such as the weakest link and Who wants to be a millionaire, which value, ergodic factual knowledge over, deeper understanding are creating a generation of vacuous teenagers, according to a hint Headmaster. Dr Giles Mercer, head of Prior park College in Bath believes that unless teenagers are fed a more de manding diet by the media they will become cynical about politics and apathetic about voting.So television is actually harming your children. So think of the children brought up to watch soaps rather than read a good book, which provides sport whilst also benefiting the child involved. But as long as we are entertained, right? Wrong television has pushed its limits certainly there have been some events worthy of recognition, but in the main the programmes shown are equalisation our morals, they are making us complacent about the world around us. Not many people could argue Jerry Springer has a positive impact on our nations youth.If we were to believe everything television told us then we would all be certain that bombing Iraq is the right thing to do. The remaining factual programmes are much biased and do not show the big picture, e. g. what about the refugees, what about the children, are they part of Saddams governing? There are people who believe, as I do, that television could be beneficial for us Tess Alps, alternate chairman of the media agency writes, I believe that the recent dumbing down of programmes and relaxation of censorship is wrong. Television could be successful, and informative but Television chiefs just dont want to see it.

Survay Research on Villians Essay Example for Free

Survay Research on Villians turn byEvolution of Evil Since television had become a household product in 1947 it has been used by pargonnts to help educate their nipperren in a certain manner to which they may find depending on their age. In drive home day America television shows much(prenominal) as Sesame Street and Reading Rainbow norm everyy start by t each(prenominal)ing fundamental skills such as reading, writing, and spelling to infants by using un similar methods such as the alphabet song to make it easier for kids to comprehend.These shows and others alike also began to teach pietism such as sharing, doing your part, and helping others less fortunate by using certain mascots such as a giant purple dinosaur to appeal to their childish behavior while teaching them lessons they will use each of their feel. Once these lessons argon fully comprehended by the kids villains, such as strike off from The Lion great power and Plankton from SpongeBob, specifically geare d toward children were introduced to expose children to character traits that opposed the very morals that were taught to them.These villains were usually inherently execration usually having no reason to oppose the champ other than simple emotions such as greedily or greed being their motivation to do actions that are deemed as bad such as lying, cheating, and stealing. As these kids grow up and deal with certain situations with real villains in their own life their recognition of true offense changes as they experience more own their own and develop more thickening in depth relationships with people.As these kids mature into teens and adults that can comprehend more complex emotions, the villains that are envisi angiotensin converting enzymed in the media obtain more human like features. I decided the best way to sort aside useful information would be to check out thirty college student that are in my age pigeonholing so I could determine which villain that was created for children in the 1990s is the more or less unforgettable and why. Then match how they differ from the villains that are created for those same kids ten years later in present day society.I decided I would poll students in all my classes except those in my English class to break that I could obtain the surveyors honest conclude to the questions I would ask. I asked those students in my class to answer my eight questions that included a be system that would allow them to rank cartoon villains from the 1990s as the most or least unforgettable using the numbers 1 through 5 with 1 being the most memorable. I asked the same ranking question again, but with 5 far-famed villains portray in present day media while allowing space after ach question to explain why or why they werent scared of the villain they ranked as the most memorable during their childishness and present day. I targeted my survey toward a certain age group to try to find a purpose in the answer to which chara cters are the most memorable and why they are memorable. I knew when analyzing the information I received I would have to take account the hero the villain was opposing and what makes them so memorable as well. I asked thirty people how much television they watch during the week and twenty-one out of the thirty verbalize they watch at least one hour a day.Out of the childhood focused questions the group of villains consisted of Hades from Hercules, Scar from The Lion King, Jafar from Aladdin, Mojo jo jo from the The Powder-puff Girls, and Plankton from SpongeBob Square Pants. Out of the five villains Scar from The Lion King come rank was 2. 33 which named him the most memorable character. Out of the seven survey takers that ranked Scar as the most memorable five out of the seven stated that they were non scared of Scar and that it was fairly easy to understand why he was the villain and why he did the mischievous things that he did.Of those five that were not scared of Scar expla ined that The Lion King was a crystalize hearted cartoon movie astir(predicate) animals in the wild. The least memorable character was Mojo Jo Jo from The Powder-Puff Girls with an average ranking of 3. 81 out of 5 by the survey takers. Of the two histrions that named Mojo Jo Jo the most memorable character one stated he was afraid of Mojo Jo because he saw a part of himself in Mojo Jo Jo. The other participant stated that Mojo Jo Jo was just misunderstood and was in fact not at all scary.Out of all five villains available 19 of the 21 surveyors who watched television as kids ranked the complexity of their most memorable characters as easy or fairly easy to understand. I then questioned the surveyors about five famous fictional villains displayed in todays media. The list of villains included Jigsaw from the Saw, Joker from The Dark Knight, honey oil Goblin from Spiderman, Lord Voldemort from Harry Potter, and Darth Vader from Star Wars where the Joker received the highest avera ge ranking of 2. 3 out of 5 of the most memorable villain of present day media. Four of the seven people that said Joker was their most memorable villain were scared of Joker and set forth his motives as questionable and his constitution as a bad Mother Fucker. The terce of seven that wasnt scared of Joker described him as an interesting character, a great villain, and having memorable actions. The least memorable villain of these five red-brick day villains was Jigsaw from the movie Saw who had an average ranking of 3. 91 out of 5 surrounded by the thirty participants.Although Saw was the least he seemed to be the most confusing character as the three people who ranked him as the most memorable stated they were complete unsure of his motives and the reasons for his actions. On average when asked about the complexity and morale standings of these present day villains the results mirrored those of the cartoon characters with a 19 of 30 surveyors giving their most memorable vill ain a raking of 3 or higher. After analyzing the results to childhood questions, I believe The Lion King is the most relatable movie to kids.This movie more so than the others touches on basic principles that kids are learning during that age such as greed, jealously, and rebellion which is why it is no surprise that it is the most memorable. Simba, the love-able misunderstood tiger who seeks his rightful place as king, is opposed by Scar the symbol of evil that shows no moral empathy with the wrongful acts he commits toward his own nephew. Scar lacking of empathy allows viewers to clearly understand Scars motives leaving little room for confusion for the movies immature audience.On the other give way Joker seems to be completely non-relatable to most people of major society because of his questionable motives that drives the evil actions that he commits. Of the list of five present day villains only Jigsaw and Joker challenge the moral divisions of the hero they are opposing which in turn the allows the viewer to question their own moral standing about certain questions such as save the love of your life, or the city that your love. These type of interesting questions arent one people are likely to face in reality.Watching a character like Joker question the moral standing of Batman gives the viewers the chance to look inwardly where they usually would not. By ceremonial the hero and understanding the reason why he made the choices he does gives the audience to crush the choice they would make in the shoes of the hero which in turn makes the villain causing these choices to be so memorable. Surprisingly nine of the thirty participants said they didnt watch television as they were outgrowth although but were still familiar with the characters and able to rank them because of the conversations they had with their friends.Four out of the nine participants said that they were not allowed to watch television that wasnt solely educational. Two of the nine parti cipants said they did not own a television inside of their home and only saw movies every once in a while. 3 out of the nine simply stated that had no time or interest for television and were jailed up in other things such as travel sports and other time consuming hobbies as kids.However 5 out of 9 of those who did not watch television as a child ranked Joker with either a 1 or 2 as their most memorable character which shows the popularity of Joker to even those who may or may not having grown up watching Batman. The media of present day in comparison to the movies and shows of the 1990s seemed to portray the most interesting villains are the ones that are complex and cause a question of morality of the hero which then in turn questions the audience.These questions of morality such as is it okay to kill someone whom harms others can only be answered by each individual viewer by challenging the very believes that are molded into most kids as they are growing up. The most famous cha racters and villains of are childhood are those that visual show and teach life lessons that we use today, but the villains that challenge those very beliefs as adults leave a lasting impression of self-fulfillment and moral standing in which each individual carries daily.

The Physiology of Fitness Essay Example for Free

The Physiology of Fitness EssayWhat is an precipitous receipt?An acute response is an immediate response to exercise.Acute exercise will last throughout the full length of your discipline session. During the training session our bodies begin to respond to the exercises we ar doing and begin to touch the changes at smell our bodies and mind out-of-pocket to physical strain and stress of the physical activity in cumulus of contrastive ways.Musculoskeletal responseIncreased railway line proviso the ontogenyd blood supply occurs in the trunk due to the increase in demand for much than type O and this is due to the works ponderositys needing more type O and nil during exercise. With there been an increase in blood supply that centre there will be greater essences of group O been delivered or so the trunk at a faster speed due to the heart pumping blood around the form at a faster pace. Increase in sinew pliability Muscle pliability is the stretchiness of you r muscles and connective tissues. When muscles become warm they become more waxen and this aids reduce the risk of an exclusive becoming injured during exercise and this is beca employ the muscles contract rapidly when the body is exercising. When the muscles be contracting they seduce heat which therefore a=makes the muscle more pli open.The warmer the muscle becomes the only you put up stretch it separately time without the muscle becoming weakened or injured. Increased simulacrum of movement Synovial fluid is the result of joint movement and totallyows joints to move without them rubbing together and cause friction. During exercise joint changes occur and this is because the synovial fluid becomes less viscous (the pace of thickness of a fluid) so therefore the range of movement at the joint will increase. Muscle fibre micro tears When muscles are put under pressure whilst exercising tiny tears occur. These tears deep down the muscles cause swelling, which then(p renominal) puts pressure on the nerve endings which causes a lot of pain. To help strengthen the muscles and help repair the micro tears you need to rest and you can strengthen the musclesby training.Energy constitutionsEin truththing in our bodies requires dexterity and our body mainly needs zippo to move. Energy can be gene grazed in different ways and this is depending upon the duration or long suit of the exercise that the individual is perform. phosphocreatine The adenosine triphosphate-PC dodging can similarly been known as the alactic vitriolic organisation of rules. During exercise the adenosine triphosphate-PC cipher arrangement works between 1-10 seconds long it ordinarily consists of different sport activities like racy jumpers, long jumpers, javelin and shot putters. This postal code dust doesnt pretend lactic irate and it works without oxygen. When the body has been doing exercise your body uses the zilch source ATP. When ATP has been use deep down t he body this energy system is the first fuel to be called upon the body to resynthesize ATP. ATP-PC utilizes Phosphatecreatine and this then allows extravagantly intensity muscle contractions. The maximum storage this energy can take up without the individual training is less than 8 seconds in duration. So this actor that this energy system can work at a high intensity hardly only for a gip period of time in that location are ways in which creatine phosphate (CP) can be increased within the humanity body and that is through training. By training levels of CP will increase bySpeed trainingCreatine loadingBoth of these delay the use of the lactic anaerobic system that even though it delays it still gives 15 seconds of energy stored in the body. The ATP is stored in the muscle and liver and this can fetch energy quickly. Nerve impulses in the body trigger the breakdown of ATP into adenosine diphosphate, however for this to continue ad for the body to continue to use this en ergy system, the ATP must be resyntesized /rebuilt and this comes from the splitting of phosphocreatine. When the ATP is used, it is rebuilt but this will only happen as long as there is phosphocreatine available within the body. Energy is released from the phosphocreatine breaking off and from this it resynthesizes in the mitochondria and the ADP adds on the phosphate to remake ATP.The ATP-P system doesnt provide a lot of energy but it is used for quick and powerful movements. For archetype A 100m runner would use the ATP-PC system due to the fact that the suspensor would need a short powerful get out of movement to be able to get off the blocks quickly. another(prenominal) exampleof this energy is for a shot putter. They would use this energy system because they dont need a lot of energy for their sport, all they need is a short powerful burst of energy to be able to get a strong, powerful thrown and to be able to throw the shot-putt a long way. whole these different sporting examples last up to 8-10 seconds and this is the energy takings. The speed of energy production for Phosphocreatine is very fast, although the amount of ATP produced is very limited.The time it takes to recover from the ATP-PC energy system is 30 seconds up to 4 minutes. The phosphocreatine works when your body is works at high intensity at around 90-100%. The strengths of the Phosphocreatine system is because the source is stored in the muscles and liver so it can produce energy very quickly using a short burst. This means that there will be a higher crowd of contraction. at that focalise are also no waste products within this system. Another advantage/strength of this energy system is the recovery time. Phosphocreatine recovery time is shorter than the others which mean that the athlete can perform the upshot again quickly. For example shot putters use this energy system because they have to perform 3 throws within a short period of time, so because the recovery time is betw een 30 seconds to 3 minutes this is the perfect energy system due to the fact they need to recover quickly to be backbone to their top level of performance.To improve the force of contraction, an athlete should do plyometric training and Creatine loading, this will increase powerful movements. There are many weaknesses of the Phosphocreatine system and there are the amount of ATP that is produced is limited. It is limited due to the Creatine been stored in the muscles and liver. Although it gives a short burst of energy it only lasts around 8 seconds which is a weakness if it is used for endurance events because it wouldnt be able to produce an detonative and powerful movement. A marathon runner wouldnt be able to use this Phosphocreatine system because it only releases a short burst of energy of about 8 seconds whereas marathon runners need to use the aerobic energy system because the duration is inexhaustible and the oxygen will never run out.lactic acid This energy system is used without using any oxygen. It is used for activities that use large amounts of energy over a short period of time. The animal starch stored in the muscles helps the breakdown of ATP to become ADPwith no oxygen involved. Seen as though the glycogen is stored in the muscles and liver it is available quickly. This system provides ATP when ATP-PC runs out. ATP-PC lasts for a hardly a(prenominal) seconds the lactic acid system is an anaerobic energy system which allows 2-3 minutes of work. In the lactic acid system the process to produce ATP is not as fast as ATP-PC which makes contractions slower. When oxygen is not present the end product of glycolysis is lactic acid this causes the muscles to fatigue.Anaerobic glycolysis but it is then less efficient in producing ATP than aerobic glycolysis but is needed for a large burst of energy lasting a few minutes. The speed of the energy production in the Lactic acid system is fast, the energy source is glycogen. Although the amount of AT P produced is limited. Lactic acid is the by product in the production of waste products. This anaerobic energy system is used when the body is on the job(p) at a moderate intensity of 60-95%. The length of time it takes to recover when the Lactic acid system has been used is 20 minutes up to 2 hours. For example This energy system would be used for events and sports such as 800m, football and rugby games. The Lactic acid energy system would be used when an athlete is performing the 800m because you need a large burst of energy but you need it to last for a few minutes, as you do for a football, rugby game.Although all these sports would use all of the energy systems in some form. You would also use this anaerobic energy system for football/rugby game because the glycogen is stored in the muscle and liver so it is available quickly and the time is takes to recover is short so it can keep replenishing itself throughout the game. The strengths of the Lactic acid system is that is pro duces energy quickly, compared to the aerobic system because that releases energy slow but lasts for an limitless duration whereas the lactic acid system is a high intensity but for a long duration. This system lasts longer than the Phosphocreatine system because the lactic acid system uses glycogen stores which aid the resynthesis of ATP. The weaknesses of this system are that it doesnt last as long as the aerobic energy system because the glycogen stores are limited which means it doesnt produce energy for as long. Another disadvantage is that it causes lactic acid within the muscles which causes muscle soreness and fatigue which could lead to a tramp in intensity.Aerobic The aerobic energy system is the energy system that uses oxygen it uses large muscle groups continuously over a period of time. Aerobic glycolysis and fatty oxidisation is the resynthesis of ATP from carbohydrates and fat. Aerobic glycolysis uses glucose from the stores of the body. Glucose and oxygen are tra nsported by the working muscles by the blood. These substances are then used by the body to produce energy. These substances are then used by the body to produce energy. This process creates the by-products carbon dioxide and water. This energy system is used for intensity exercise because this system uses oxygen. This allows unlimited duration at low intensity. Aerobic energy system uses long chain stores of glucose, this then break up further into glucose which is then used as a fuel within the body. This happens through the process of glycolysis and then in to the Krebs cycle where here it completes the oxidation of glucose, this creates more ATP.The chemical process in which it goes through, an aerobic glycolysis occurs is when Creatine Phosphate runs out, the muscles call upon the stores of glucose (glycogen). This system creates a waste product which is called Pyruvic acid. The body deals with this by the oxygen breaking down the Pyruvic acid into carbon dioxide and water. un less if activity levels are too intense and not enough oxygen can be stimulate then the Pyruvic acid is not broken down and it then converts into lactic acid. The speed of energy production for the aerobic energy system is slow but the amount of ATP that is produced is unlimited. This is wherefore this energy system is used for marathon runners and cross country runners because they need to use large muscle groups within their body but for a long period of time.They also use this system because the amount of oxygen produced is unlimited so they can produce energy forever and ever without the oxygen never running out. This is why the lactic acid system and Phosphocreatine system isnt used for long distance runners because the oxygen will run out. The advantages of the anaerobic energy system are that the system will work for an unlimited period providing glycogen stores and oxygen with high enough levels. This system lasts longer than the other two which allows an athlete to mainta in high workloads for longer period of time. Another advantage would be that it can respond to high workloads much more quickly than the aerobic system meaning it can last for longer periods of time.moreover the anaerobic energy system is capable of supplying fuel to the cells evenwhen there is an oxygen deficit, which means that even when there is low oxygen the cells will still get some energy. The disadvantages of the anaerobic system are the fact that due to the lack of oxygen, glycolysis takes place which is catabolic (destructive) to the muscle cells if the process continues for too long. harbor and hydrogen ions are produced. The lactate is used to continue energy production (current theory), while the hydrogen ions nark the muscle tissue and chemically limit muscle contraction.This creates the burning sensation and the heavy wooden jot in the muscles. Another disadvantage to this energy system would be that the system cannot supply energy for broad periods. When fully tra ined, an athlete can sustain sub anaerobic threshold intensities for 1 to 1.5 hours. Fuel resources are used up very rapidly and the body cannot synthesize fats and protein quickly enough to supply this system so, glycogen and carbohydrates must be used.Energy continuum The term energy continuum is used to describe the types of energy system that are used during various physical activities. Energy is obtained through intellectual nourishment and this is particularly carbohydrates and fats. This energy is transferred from the food into the proteins that are in the muscles. By the body doing this it will help determine the capacity at which intensity the body will exercise for. The energy continuum is the interaction of the 3 energy systems to provide energy to resynthesize ATP.It shows the dominant system or percentage of each system dependant on their intensity and duration of the activity. The roughly dominant energy system within our bodies would be the ATP/PC. At the beginning of exercise all three energy systems start however as we begin to exercise the PC (Phosphate Creatine) is used up meaning the lactic acid system then takes over. After this (depending on the intensity of the activity), the lactic acid/aerobic energy system is reached between 1-3 minutes. The aerobic system now becomes the main provider of energy for the ATP resynthesis.Describe the cardiovascular and respiratory systems responses to acute exercise Heart rate anticipatory response This means the rate that the heart reaches before the start of exercise. When the body knows that its about to do exercise, the heart rate increases even though no exercise hasbeen do yet. Nerves release chemicals in the body which adjust the heart rate to increase the heart rate. This is because the body knows exercise is about to be done therefore the heart rate increases pumping more oxygenated blood to the muscles ensuring that the muscles already have a sufficient supply of oxygen for when they begin to exercise. Activity response The activity response is very similar to the heart rate anticipatory response. At the start of exercise, nerves in the medulla detect cardiovascular activity.The nerves then send out chemical signals which increase the heart rate and the strength at which the heart is pumping. This makes more blood travel to the working muscles faster which is vital as the blood contains oxygen which ensures the muscles can extradite on working. Regional blood point is also altered to come over the requirements of blood needed at working places. This means that the working field of studys such as the quadriceps when running will have a higher blood flow coming to it than un-working areas such as the kidneys. Increased blood pressure There are two types of blood pressure and these are known as systolic and diastolic.One of the bodys acute responses to exercise is to increase the blood pressure. This is because the demand for oxygenated blood to the working muscles increases therefore the amount and speed of the blood going to the working muscles must also increase. There are mechanisms in place which prevent blood pressure getting too high as this can cause a heart attack and possible death.Vaso abbreviateion Vasoconstriction is when the body notices a change in temperature and begins become to come coldness and it does certain things to ensure the body doesnt lose too much heat. The blood vessels of the body constrict which means they decrease in size and this ensures as much heat as possible remains in the body as there is a smaller surface area and the blood flow decreases. Vasodilatation Vasodilatation is one of the mechanisms the body has in place to ensure it remains at a safe temperature. It is the opposite of vasoconstriction in the way that vasodilatation functions to cool the body down. When the body notices the temperature is too high, the blood vessels will dilate which means to increase in size in an attempt to increase the blo od flow. The larger surface area allows more heat to diffuse out of the body and therefore cools the body down.Control of breathing (neural) When an individual is doing exercise their bodyneeds more oxygen to be brought into our to the fact the demand for oxygen increases from the working muscles in order to carry on working. This is why our breathing rate increases when we are doing exercise. More oxygen is brought in by the increased breathing rate which goes on to be diffused into the blood and transported to the working muscles. If breathing rate didnt increase, there wouldnt be enough oxygen to meet the demands of the working muscles and exercise wouldnt be able to take place. Control of breathing (chemical) Within our bodies there are things called chemoreceptors and these are what help to detect an imbalance of carbon dioxide levels and oxygen levels in the blood.Chemoreceptors are hydrogen ions that measure the pH levels of the blood. If something is not right, this hydrogen ion can tell the breathing rate to increase to ensure that the blood becomes neutral again. Increased tidal volume Tidal volume is the measure of the amount of air inhaled and exhaled with each breath we take. During exercise, the tidal volume increases a significant amount. This increase happens as the breathing rate has to meet the huge demands of oxygen needed by the respiring muscles. The increase of the tidal volume allows a bigger recess of oxygen and also a bigger exhale of carbon dioxide which is produced by the working muscles and needs to be out of the body as it is a waste product.

Used Car vs. New Car Essay Example for Free

Used motor automobile vs. New Car EssaySome people are fortunate enough for their initial machine to be a brand refreshed car, no matter what make and model it is. Most likely, your first car is a apply one. It may be a 99 Corolla to a 06 Altima, both with 100,000 statute mile on them, only when they all serve the same purpose, to get you places. Used and new cars may be different, and some may be the same. Both cars have a stereo system with FM radio, seats, and space, but its the detail that makes things different. Used cars may only have a cassette player, which no one has now, trance new cars have an auxiliary and USB port, and GPS.You might like a lot of space in a car for loss on road trips, or you might like very little to no space at all for racing, depending on what kind of car you get, like a SUV or a sports car. All cars have engines ranging from a four cylinder to a V8 engine. Used cars are commonly know for having at least one thing wrong with them. It cou ld be something wrong with the engine the previous owner didnt know what to do some it, or it just doesnt feel like the car is givening smoothly. Owning a new car haves you the trouble, worries, and the stress, compared to owning a used car.You dont worry about the car shutting down on you while youre driving, or anything else that can put you, and psyche else, in danger. When Im in a parking lot and see a go of the line car, I say to myself, Wow, I wonder how much one of these cost? Some new car owners might have the wealth to pay the new car off, while used car owners pay half or less for the price of a brand new car. The money you save could be used to repair, or even upgrade your used car so it can run like new. At least $600 are going to be spent on repairing and maintaining a used car.On the other hand, maintenance on a new car is little to $300 depending on what make and model the car is. You can have a huge Hummer, or a 2-door bother Cobalt, new or used, they both ge t you to your destination. It is up to you on what kind of a car you want. Eventually, a new car will get old and you will have to start the process of sounding for another car again. As long as the car is maintained, everyone is going to win, and all youre going to have to do is decide what color you want your car to be.

Learning Team Reflection Essay Example for Free

Learning Team Reflection EssayI guess for me I am try with how to forecast and predict what is important enough to know what criteria is relevant entropy to use for the success of my scheme. Since I only construct in one bea of the whole organization how do you predict when you are not privy to important information to know what direction to go in. I am hoping to develop how to think way outside the box and be able to see the bigger picture. One skepticism I do have though will the company be as successful if I only concentrate on the success of the field of operations I work in? I train how strategical management can be beneficial to an organization, and I get how ethics should play a role as well. I see the way people have done wrong actions in a company is almost like having cancer in your organization. It can slowly take all over or be swift and destroy a organization. I see both issues in my work place. People riding the cuff of what is wrong deportment and ou t right breaking the rules. All of that behavior disrupts the goal of the organization to run effectively and efficiently. Looking forward to further discussions. After completing the assignments and read the objectives I think I am comfortable talking about environmental scan both internal and external and how it is different from a SWOT analysis. Environmental scanning is made up of observation, reviewing, and in the end circulating the data gathered from external and internal environments based on the decisions made by the rung of the organization.This process is applied by the organization in the case of a worst case scenario it allows an organization to carefully take care of conflicts compared to struggling to salvage a situation which is causing financial setbacks for the organization. In regards to discussing the external factors of an organization and why they should be reviewed as part of the internal environmental scan, below are some reasons why this should happen. 1. Economic forces Regulates the transferring of materials, money, energy, and information (Wheelen Hunger, 2010, p. 99). 2. Technological forces Is what generates problem-solving inventions (Wheelen Hunger, 2010, p. 99).3. Politicallegal forces Is what allocates power and provides constraining and protect laws and regulations (Wheelen Hunger, 2010, p. 99). 4. Sociocultural forces Is what regulates the prizes, mores, and customs of society (Wheelen Hunger, 2010, p. 99).In regards to discussing some of the internal considerations of an organization and why the organization should estimate them as part of the internal environmental scan, the following are some reason 1. Value Is when it provides customers value and competitive advantage (Wheelen Hunger, 2010, p. 138). 2. Rareness Is when other competitors possess it (Wheelen Hunger, 2010, p. 138). 3. Imitability Is when it becomes costly for others to imitate (Wheelen Hunger, 2010, p. 138). 4. Organization Is when the organizat ion utilizing the imaginativeness to its advantage (Wheelen Hunger, 2010, p. 138). There is a difference from Environmental scan and a traditional SWOT collectible to the environmental scan gathering data while the SWOT is more involved with gathering information and research to establish an ultimate plan.In last weeks class I got a better understanding of the 4 phases of strategic management which are basic financial planning, forecast-based planning, externally orient strategic planning and strategic management. By emphasizing what strategic management actually means to an organization I was able to get a more in depth concept of the benefits such as how performance can be amendd by providing organizational learning tactics understanding the strategic vision of the organization. I can actually relate to this because I have recently completed my reverse lightning belt lean six sigma which allows me to be part of working groups that have been task to identify gaps and improve business processes and practices in various area in the logistics directorate in which I work. By being part of a working group at work and also being in this strategic management class I truly believe that this will increase my development in the area of strategic thinking to be an impact player in my organization. I look forward to these neighboring few weeks.ReferenceWheelen, T.L., Hunger, J.D. (2010). Concepts in Strategic Management and Business Policy (12th ed.). Retrieved from University of Phoenix eBookCollection database.