Causes And Effect Of Oxygen Aids - 1419 Words

Oxygen aids in carrying out several cellular processes of energy transformation for life. In many processes, oxygen is consumed when nutrients, such as protein, carbohydrates, or fats are oxidized, and carbon dioxide is produced as the gaseous waste. Respiration is the process by which oxygen is taken from the environment, delivered to the cells, utilized by those cells, and where carbon dioxide is is produced and delivered to the lungs to be excreted. There are three different categories of respiration; external respiration, gas transport, and internal respiration. External respiration is defined as how a person gets oxygen from the environment and excretes carbon dioxide. Gas transport is the process by which oxygen is distributed and carbon dioxide is removed from cells. Lastly, internal respiration consists of the chemical reactions of cellular metabolism where oxygen is consumed and carbon dioxide is produced. The respiratory system in humans is broken up into an upper and lower division. The upper division consists of the nasal and oral cavities, the throat (pharynx), and the voice box (larynx). The lower division is the system of airways that get progressively smaller that resemble an inverted tree with the wind pipe (trachea), the right and left bronchus, the lobar bronchi, segmental bronchi, subsegmental bronchi, terminal bronchioles, respiratory bronchioles, alveolar ducts, alveolar sacs, and individual alveoli. Gas exchange only occurs in the thin walled parts ofShow MoreRelatedThe Role Of Oxidative Stress On A Free Radicals1388 Words   |  6 Pagesunstable molecule can lead to damage within the cell and cause the cell to function improperly. Therefore, preventing oxidative stress is very important for the cell to maintain its proper function. If the cell does not function properly, an increase in antioxidants can help to repair the cell. Antioxidants are produced by the cell but i ncreasing antioxidants for example in ones diet can reduce the amount of free radicals in the body that cause harm and as a result lead to oxidative stress in the bodyRead MoreShould Blood Doping Be Illegal or Legal in Sports?1499 Words   |  6 Pagesand psychological problems. In order to understand the positive and negative effect of blood doping to an athlete’s performance, some background information is needed. The general reason why people blood dope is because of the lactic acid build up when doing strenuous sports. If one want to do strenuous workout or exercise, one need a ready supply of oxygen and ATP (adenine triphosphate). When there is lack of oxygen in the body, the muscles are unable to perform at their best potential. When lacticRead MoreSexually Transmitted Diseases Essay1303 Words   |  6 Pagespractically everywhere. 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Many respiratory therapists and nurses are currently using saline with endotracheal suctioning without an adequate knowledge of any existing evidence-based researchRead MoreBlood Agents: What are they?1300 Words   |  6 Pagesabout because at the time they were first introduced, it was believed that, they had an effect on the actual blood itself. This was due to the bright red color it caused its victims, not for the true effects that these agents have on the oxygen in the blood. Blood agents are chemical agents that lessen the amount of oxygen in the blood stream. They do this in one of two ways: they either prohibit oxygen from entering the blood or obstruct the blood and keep it from moving from one place in theRead MoreInto Thin Air by Jon Krakeur727 Words   |  3 Pageseach other for aid and safety, but never at the risk of their own life. 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In natureRead MoreThe Decision For Admit Ms. Z1680 Words   |  7 Pagesbenefit of this is that it allows the provider team to keep an eye on any changes or potentially fatal arrhythmias and respond quickly, and it is wireless so she will be able to get up and move around. A risk of continuous telemetry is that is can cause skin irritation and may heighten her anxiety by knowing it is tracking changes in her vital signs constantly. I would follow through with this order because it is important to monitor her for changes and be able to respond immediately. The 12-leadRead MoreEffect Of Ph On The Activity Of Catalase1326 Words   |  6 PagesAbstract The purpose of this investigation is to discover the effect of pH on the activity of catalase, an enzyme which plays the integral role of converting hydrogen peroxide into water and oxygen, and discover which pH level it will work at the most efficient rate (the optimum). The original hypothesis states that that the optimum would be at a pH is 7, due to the liver, where catalase usually resides, being neutral. The experiment consists of introducing the catalase to hydrogen peroxide, afterRead MoreAcid Rain From The Scottish Chemist Essay1643 Words   |  7 PagesMany of the acidic deposits that fall from earth from to the atmosphere can cause the pH of the water to change, making them have a higher acidity than desired. This process was named acid rain from the Scottish chemist, Robert Angus Smith who discovered this in the 19th century (Reed, 2014). Acid rain is commonly known as air pollution today causing many detrimental effects on the environment (Funk Wagnalls, 2016). Based on the pH of the concentrated rainfall, acid precipitation begins to take

I Want to Become a Forensic Psychologist - 1067 Words

Forensic Psychologist Shows like â€Å"Criminal Minds† have made the forensics psychologist field progress. What do forensic psychologist do? â€Å"Forensic psychologist is the application of the science and profession of psychology to questions and issues relating to law and the legal system.† (An Overview of Forensic Psychology, 2014)The career I want to engage in is forensic psychologist but first you have to learn the work environment, the education, the earnings, the outlook, the pros, and the cons. â€Å"With numerous portrayals in books, movies and television programs, interest in forensic psychology has grown significantly in recent years.† (An Overview of Forensic Psychology, 2014) The work environment of forensic psychologist varies widely. â€Å"Working hours are typically nine to five, with some flexibility required. Evening and weekend work may occasionally be necessary.† (Forensic Psychologist, 2012) Most of the time you will always be on the call. Being on call means at any time you could get a call and have to drop what you are doing and go tend to what the call was about. As a trainee you are supervised then as time progresses and you progress the supervision becomes less. â€Å"Forensic psychologist work not only with prisoners and offenders but also with other professionals involved in the judicial penal systems, and with victims of crime.†(Forensic Psychologist: Job Description, Ed. AGCAS, Aug 2012) To become a forensics psychologist I will at least need to have aShow MoreRelatedThe Fantastic Field Of Forensic Psychology1327 Words   |  6 PagesKaylin Mize Mrs. Lozares Honors English II 15 February 2017 The Fantastic Field of Forensic Psychology 1 Forensic psychology is a developing science that is quickly being utilized in many industries. It is a very difficult choice of career, but perhaps that’s why I am so attracted to it. I’ve always been curious about the mind. I am not interested in so much as to the physical makeup of the brain such like a neurologist. I am more attracted to the chemical imbalances that can make someone develop a mentalRead MoreThe Importance Of Becoming A Forensic Psychologist1218 Words   |  5 Pagesfuture. Every minute of every day is spent trying to become better equipped, whether it be voluntary or an instinct. Picking a career is just one example of an aspect in life that is heavily dependent on choices throughout life. Decisions about what courses to take, what college to attend, what major to pick, where to live after graduation, all depend on the career a person is pursuing. For someone who desires to enter the department of forensic psychology, certain steps must be taken. It is essentialRead MoreA Brief Note On Forensic Psychology And The Criminal Justice System1270 Words   |  6 Pagesimportant. One critical job linked to the criminal justice system is that of a forensic psychologist. 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Dodge vs Chevy free essay sample

You’re going to the dealership to buy a new diesel truck but you don’t know what brand to get. You’ve been thinking about it, doing a little research and you’ve come to a â€Å"brick wall†. You can’t decide whether to get the Dodge 2500 Cummins or the Chevrolet 2500 Duramax. Well my advice would be to get them both, because they are both GREAT trucks. Each of them is going to last you a long time and give you close to no problems. But†¦Ã¢â‚¬ ¦. Since you may not be able to afford both or have any use for both vehicles, you need to pick one. This paper will hopefully help make up your mind. The Dodge 2500 diesel is the fastest selling truck on the market, mainly because of its Cummins B-series engine. The Cummins B-series engine was introduced to Dodge in 1989. It marked the first time a genuine medium-duty diesel engine had been used in a light-duty truck as the 2500 Ram. We will write a custom essay sample on Dodge vs Chevy or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Sure, other pickups had diesels, but none of them had an engine with a gross vehicle weight rating anywhere near the Cummins B-series 66,000 pound limit. Although it has a great engine, the body is known to be made cheaper than Ford or Chevy. A lot of people have problems with the dash cracking down the middle, paint fading and chipping easier, and when getting in wrecks, the frame breaking when it should have more of a springy characteristic. Also Dodge uses cheap axils, which are the heavy iron bars going from the frame to the wheels. Because Dodge uses cheap axils, the front-wheel alignment gets unaligned easier and can cause, what some people call â€Å"the Death Wobble†. The Death wobble is when you are driving at speeds above 60 miles an hour and all of a sudden the alignment goes out of line and both front wheels start shaking back and forth sometimes causing you to lose control of the vehicle. Although its flaws may sound bad, the Cummins engine over weighs the cons by a long shot. It has more towing power, horse power, its built tougher, and i s known to outlast the vehicle itself. 200,000 miles on a vehicle may sound like a lot but it’s nothing when it comes to a Cummins if used properly. The Chevrolet 2500 diesel also has a good engine but a lot of people don’t like them due to the fact that they are made by Isuzu in Japan so getting parts for them is a bit expensive, also there are not a whole lot of people/mechanics that know how to work on the Duramx engine so finding someone who can work on it is a little bit difficult. Another con about the Duramax engine is that, at around 200,000 miles, they are known to start having problems like injector failure, mass air flow sensors going out, etc, unlike the Cummins engine that can go over 300,000 miles without having any problems. Although the Chevrolet may not have the best Engine, many people would say that is has the BEST transmission. In case you don’t know what the job of the transmission is, they are a cone-shaped part about the size of three tires placed side by side that are connected from the engine to the drive shaft. The engine spins the drive shaft while the transmission switches gears when to engines gets revved up to keep the engine from overheating. Transmissions are not something you would want to be going bad very often. It is very expensive when it comes to getting them replaced. Transmissions are not easily fixed. When something goes wrong, Most of the time the only option is to get a brand new one. Transmissions, for a diesel truck, can cost you anywhere between 2,000 dollars to 8,000 dollars. Chevrolet uses the Allison-Chalmers transmission. Every part inside of this transmission is made to top quality. Many trucks need a new transmission after about 200,000 miles but tests have shown that the Allison-Chalmers transmission can go 300,000 miles, even when hauling heavy loads on a normal basis. Another pro for the Chevrolet is the interior and paint. Chevrolet puts a little more money into the materials used to build their unlike Dodge, for the most part at least. They use better paint that doesn’t fade or chip as easily as dodge and they use thicker and heavier iron for their axils to avoid the constant need for re-alignment. But, like Dodge, the interior is not always considered â€Å"the best†. They have had problems with paint peeling off dashes and door panels and some people say that the material used on the seats are un-modern.

Stomata Lab Report free essay sample

During those high-carbon-dioxide times, plants with fewer stomata will have an advantage and will be common. On the other hand, when carbon dioxide levels are low, plants need many stomata in order to scrape together enough carbon dioxide to survive. During low-carbon-dioxide times, plants with more stomata will have an advantage and will be common. (Understanding Evolution) Therefore, the question to be tested will be if you count the number of stomata of the same species of leaf at different stages of life will the number of stomata be different? My hypothesis is if we count the number of leaf stomata at three different stages of life then the number of stomata will be less as the leaf gets older because the leaf is dying. (Understanding Evolution) Procedure Approximately three leaves of the where gathered to use in this experiment. Each leaf was at a different stage of life: alive, dying, and dead. We will write a custom essay sample on Stomata Lab Report or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page A thin cast of a tiny part of the surface of the underside of each leaf was created using NYC clear nail polish. The imprint of each leaf’s underside was viewed one at a time under a light microscope using the cast, which was carefully removed from each leaf with a piece of packing tape. The stomata were completely visible and were able to be counted under the lowest view setting of 100x. The stomata of each leaf were observed and counted four times. When viewing the stomata in each leaf for detail, the setting of 400x was used. This made the view of the stomata large enough to tell whether they were open or not. The number and description of the stomata of each leaf was recorded. Results Life stage of Leaf| Number of Stomata| Average| Coloration of Leaf| Alive| Trial One: 36s| Trial Two: 34s| 34. 5| | | Trial Three: 34s| Trial Four: 34s| | | Dying| Trial One: 34s| Trial Two: 31s| 31. 75| | | Trial Three: 30s| Trial Four: 32s| | | Dead| Trial One: 27s| Trial Two: 32s| 29. 25| | | Trial Three: 29s| Trial Four: 29s| | | s=Stomata Graph- Number of stomata counted on each stage of life for the leaf X=Trials Y=Number of stomata Results (continued) The number of stomata on each leaf averaged between 29. 25 and 34. 5 stomata in one tiny area observed on each leaf. The leaf that was alive had an average of 34. 5 stomata counted in the one specific area observed, the dying leaf had an average of 31. 75 stomata in the area observed and the dead leaf had an average of 29. 25 stomata in the area observed. These averages were results of four different trials in which the stomata were counted and observed in the specified area of each plant, every trial having a new person count the stomata. The stomata of the dead leaf were closed; the stomata of the leaf that was alive were open. The stomata of the leaf that was dying varied. In some places, the stomata were opened, in others, they were closed. The stomata that were open were bunched in separate areas of the observed section of the leaf, as were the stomata that were closed. Neither of the different stomata were mixed between each other in the dying leaf. All three leaves stomata were scattered around in the observed area and did not have a noticeable pattern to their placing. Conclusion: The data gathered shows that there is, in fact, a difference in the number and the appearance of stomata in three different life stages of an American elm leaf. However, the differences in the number of stomata are slight, calculating to a difference of only 5. 25 stomata between the largest and smallest average. The leaf that was alive had the greatest number of stomata, followed by the dying leaf and then the dead one, which had the least number of stomata. The numbers of stomata seem to descend as the leaf dies. However, this difference is insignificant considering that the stomata that were counted were a part of a very tiny area of the leaf (smaller than a fraction of a centimeter). The difference of stomata in each leaf came out to only 5. 5, which isn’t a large enough difference in the stomata of a small area of the leaf to be determined as significant. Further investigation would have to be performed in order to test this and get more accurate results. The difference that was significant was that of the appearance of the stomata. In the dead leaf, the stomata were closed; in the leaf that was alive, the stomata were open. The stomata of the dying leaf however, varied. Parts of the section viewed under the microscope consisted of opened stomata, others consisted of closed stomata. This might be because the leaf wasn’t completely dead, or parts of the leaf were still alive. When something is dying, the working parts of it do not stop functioning completely, they shut down at various times. This explains why some the stomata are open and some were closed. There was no significant difference in the number of stomata between the three leaves; however there was a dramatic difference in the appearance of the stomata in each leaf. If I were to re-do this lab in the future I would make sure to keep my fingers off of the viewing part of the tape. I think it may have altered our results in the end, like the number of stomata should have been without outliers. Another error that I have discovered was that we used different microscope power for the leaves. We should have used all the same power on each leaf for more accurate results to be sure we were viewing the same amount of area. The data also proves this because for the alive and the dying leaf we used the 100x zoom, but we used 400x zoom for the dead leaf. I’d infer that we did this because the dead leafs stomata were closed which could have made them harder to see. Stomata Lab Report free essay sample A long 350 million years ago, life on land was unsuitable for plants to live on with the little to no supply of oxygen and the harmful ultraviolet rays of the scorching sun. This lead to life beginning in the ocean where scientists have traced back to an ancestral bryophyte (also known as freshwater green algae) that has, over time, developed a key process of making food by using the energy from sunlight to convert carbon dioxide and water into by glucose and oxygen. The plant life history also involves the alternations of generations that allows a plant to undergo meiotic/mitotic phases between the sporophyte(diploid) and gametophyte(haploid) generation. In leaves, gas exchange occurs through little pores called the stomata which are present in the sporophyte generation. These small openings are light sensitive, so they are most commonly located on the bottom of leaves to prevent dehydration. The stomata usually open in the morning, and close in the night in C3 and C4 plants. We will write a custom essay sample on Stomata Lab Report or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Although, many plants species are different when you compare their stomata orientation. One of the two major groups of flowering plants(angiosperms) are monocots, which include palms. These trees have adapted to harsh, dry environments. The deep roots of a palm tree allow it to reach far below the soil and obtain the necessary water and minerals stored at the bottom, and to help it grow. Its giant sized leaves allows for maximum sunlight exposure and its waxy surface cuticle of its leaves prevent the large loss of water from leaf due to transpiration. For the lab, I observed six leaves collected from six different plants growing sporadically around the school campus. Using clear tape, sticking it to the bottom of each leaf, applying pressure, and carefully peeling the tape off for an imprint of the leaf. I stuck the tape onto a glass slide and placed it under the microscope and observed the cells. Adjusting the magnification down 1000x, it is noticeable that the stomata were open since it was early morning to collect any moisture, sunlight, and oxygen in the air. Thus, narrowing down the plants to be either C3 or C4 plants since CAM plants only open their stomata at night. Plant species 1 had mesophyll cells surrounding the stoma were which were formed in parallel layers, similar to the visual on page 128, leading to conclude that it was C3. Plant species 2 had mesophyll cells that were again, arranged in parallel layers so another C3 plant. Plant species 3 is also a C3. Plant species number 4 is also the same. Oh, but plant species 5 is differently arranged, the mesophyll cells are more concentric around the bundle sheath cells, therefore, it being a C4 plant. Plant species 6 has the same mesophyll cell pattern as plant species 5 so it is also a C4 plant. When I got a sample of a palm tree leaf imprint, the mesophyll cells are well-formed and arranged in parallel layers just like Plant species 1, 2, and 3 so a palm tree is a C3 plant. In conclusion, most of the leaves were similar but when observed more closely their differences are more obvious. Some plants had more stomata than the other although they were found on the same part of the leaves. This is most likely due to the fact that each plant has a specific amount of nutrients they need to be well nourished in order to survive. When you compare normal leaves to an actual plant like the palm tree that adapted to Floridas hot environment, there was significantly more stomata all around the not-so broad leaves.