Friday, May 22, 2020

Enzyme Lab Report - 1676 Words

The purpose of the enzyme lab conducted was to observe the chemical composition of cells. In order to do so we tested for the presence of organic molecules. Molecules are what forms when atoms bond together. Organic molecules of cells include proteins, carbohydrates, and lipids, which are composed of smaller molecules known as monomers and polymers. Polymers are joined monomers. A chemical reaction links monomers together occurs and releases a water molecule, this is called dehydration synthesis. Hydrolysis separates polymers into monomers by using water to break bonds. Organic catalysts called enzymes are proteins that increase the speed of a chemical reaction. In the lab we used Biuret reagent to test for proteins, iodine solution to†¦show more content†¦When Benedict’s reagent was added to the glucose solution it turned to a dark orange-red, indicating a high sugar concentration. Next we added Benedict’s reagent to the starch solution which remained blue, indicating no sugar presence. The onion juice also turned a red-orange color as a reaction to the addition of Benedict’s reagent indicating a very high sugar concentration. Lastly, when Benedict’s reagent was added to potato juice a yellow-orange color was visible, indicating a moderate concentration of sugar. Our following experiment of the lab tested for lipids. We placed a drop of water on a piece of brown paper and a drop of water on a separate piece of brown paper. Observation after allowing the drops to sit on the paper for 15 minutes included that the water remained bead on the paper and subject to evaporation indicating the absence of lipids. On the other hand, the oil drop sample was absorbed by the paper and the paper became translucent. To further study lipids, we experimented with the emulsification of lipids. An emulsifier has both polar and non polar ends, which change the polarity and causes fat to disperse in water. Two test tubes were used. The first was marked at three and four centimeters. The second labeled at one three and four centimeters. In tube one we added water to the three centimeters, and filled oil to the marking on the center tube and shook the tube. The results expected were confirmed and the two remained as theyShow MoreRelatedEnzymes Lab Report1657 Words   |  7 PagesEnzymes Lab Report Inroduction In this lab we explore an enzymes activity and how it can be affected by changes to its environment. An enzyme is a protein and is a catalyst to chemical reactions. It helps accelerate reactions by lowering the activation energy, which is needed for reactions in cells to progress at a higher rate. Activation energy is the minimum amount of energy needed for a chemical reaction to occur, yielding products from a given set of reactants. (Unit 7: Enzymes lab) ProductsRead MoreThe Enzyme Peroxidase : Lab Report1548 Words   |  7 PagesThe Enzyme Peroxidase Case Study Lab Report Autumn Vick I. ABSTRACT: The purpose of this experiment is to learn the effects of a certain enzyme (Peroxidase) concentration, to figure out the temperature and pH effects on Peroxidase activity and the effect of an inhibitor. The procedure includes using pH5, H202, Enzyme Extract, and Guaiacol and calibrating a spectrophotometer to determine the effect of enzyme concentration. As the experiment continues, the same reagents are used with the spectrophotometerRead MoreEnzyme Lab Report Essay2194 Words   |  9 PagesSection 1. Introduction â€Å"Enzymes are proteins that have catalytic functions† [1], â€Å"that speed up or slow down reactions†[2], â€Å"indispensable to maintenance and activity of life†[1]. They are each very specific, and will only work when a particular substrate fits in their active site. An active site is â€Å"a region on the surface of an enzyme where the substrate binds, and where the reaction occurs†[2]. â€Å"Lactase is an enzyme that breaks down lactose, the sugar in milk. It is produced by the cellsRead MoreEnzyme Lab Report1810 Words   |  8 PagesDanny Fish 10/9/11 Chemical Testing To identify An Unknown The hypothesis tested was that depending on the solution presented, which would test positive for one of the following, proteins, carbohydrates, or lipids through use of chemical testing. (Sudan IV, Benedicts’ Solution, Iodine, Biuret’s) . In order to gain more information for the hypothesis, one must know how to test for said macromolecule. Each of the above stated molecules has their own individual solution that will in turn identifyRead MoreEssay on Enzyme Lab Report1050 Words   |  5 PagesBiology Lab: Catalase (Enzymes) Abstract In this laboratory exercise, studies of enzyme catalase, which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme ConcentrationRead MoreEnzyme Catalase Lab Report1176 Words   |  5 Pagesbeing an enzyme. An enzyme is an organic catalyst that speeds up the rate of a chemical reaction without being consumed by the reaction. Enzymes are proteins, meaning that they have a unique structure that dictates what their function is. This unique structure also determines what substrate, or specific reactant, the enzyme will catalyze. From there, the substrate and enzyme bind together; which leads to the reactants being created. The enzyme tested during this experiment was the enzyme catalaseRead MoreCatalase Enzyme Lab Report1457 Words   |  6 Pages Catalase Enzyme Lab Introduction The human body is an incredible system that is capable of working a multitude of diverse functions. Without the help of the many different protein molecules, the human body would not be able to function properly. One major group of proteins called enzymes are mandatory for essential life. These proteins are constantly at work assembling molecules, metabolizing energy, and fighting off infections. An enzyme is a macromolecule that acts as a catalyst thatRead MoreLab Report On Enzyme Activity1221 Words   |  5 PagesThe purpose of this lab is to observe the catalase found in liver cells by measuring how temperature, pH and enzyme concentrations affect the reaction rates of enzymes. Background Enzymes are considered to be â€Å"biological catalysts† meaning they can speed up a chemical reaction in a cell without being used up in the process. Enzymes do this by lowering the amount of energy needed to activate the process. The lower the activation energy, the faster the reaction. Without enzymes, vital life processesRead MoreEnzyme Activity Lab Report1395 Words   |  6 Pages Enzyme Action: Testing Catalase Activity 6B Ava Suda Cor Jesu Academy Enzyme Action: Testing Catalase Activity 6B Introduction Hydrogen Peroxide, or H2O2, is harmful to most living organisms but can be converted to oxygen and water before the damage is permanent. This is thanks to enzymes, the biological catalysts that increase the rate of reactions. Enzymes can be studied by measuring the rates of enzyme-catalyzed reactions. This can be done in a number of ways, including measuringRead MoreEffect Of Enzyme Lab Report1137 Words   |  5 Pages Enzymes and Factors That Affect Them Rewrite title Zuryab Rana October 21, 2017 Abstract: In the experiment we used Turnip, Hydrogen Peroxide, Distilled Water, and Guaiacol as my substances. On the first activity, Effect of Enzyme concentration of Reaction Rate for low enzyme concentration, we tested three concentrations of the turnip extract, and hydrogen peroxide. For the Turnip Extract I used 0.5 ml, 1.0 ml, and 2.0 ml. For hydrogen peroxide we used 0.1 ml, 0.2 ml, and 0.4 ml. We used

Sunday, May 10, 2020

Whispered Persuasive Essay Topics 6th Grade Secrets

Whispered Persuasive Essay Topics 6th Grade Secrets Teens need to be able to select their bedtime. Students should continue to keep their mobile in silence in order to not disturb the class. They always go online when they need to find something. Students and teachers can buy balanced lunch and drinks aside from alcohol, that enables them to feel nice and study much better. Students need to be careful about posting on social networking. They should be allowed to pray in school. They should be paid for studying. They are used to the fact that their professors give them the assignment's topic. Here's What I Know About Persuasive Essay Topics 6th Grade You have to know all facets of financial topics as soon as you choose them. Most issues can have essays on all the above mentioned questions. Qualities of a very good persuasive essay topic The topic ought to be specific. Anyway, below, it is possible to find topic that are great for both situations. Before students begin to write, it is a great idea for them to earn a list of the points they would like to make to their readers. Many students have a tendency to encounter the writing issues due to the dearth of appropriate understanding. If you are searching for top essay writing companies, try out the mentioned above. Sure, with this kind of an enormous selection of topics to pick from, picking just one may be challenging. The selection of topic is the most crucial and foremost step to finish. The issue, nevertheless, is that not all businesses can be relied on to deliver quality essays on time so you need to be mindful in selecting one. The review is going to teach you whatever you will need to understand and then it is possible to place your purchase confidently. A step-by-step guide about how to compose a persuasive essay can be found on our site. Ok, I Think I Understand Persuasive Essay Topics 6th Grade, Now Tell Me About Persuasive Essay Topics 6th Grade! School should happen in the evenings. Once you are able to accomplish this, you're promised a fantastic grade. Student spend the majority of their time in school. Students have to finish a lot of writing assignments during college years. The Chronicles of Persuasive Essay Topics 6th Grade The multiple topics might be found, for instance, in the dissertation abstracts international database. Selecting a great topic for your essay is among the most essential and frequently tricky parts for many students. Needless to say, topics which are still relevant in 2018 are the very best. Possessing very good research abilities and selecting an excellent topic is vital. Why Almost Everything You've Learned About Persuasive Essay Topics 6th Grade Is Wrong To help students just like you find debatable topics, we've gathered a wide selection of ideas on distinct subjects and academic levels. Some feel parents ought to be allowed to provide permission for their minor children to acquire tattoos, since they are making the decision for their own children. Though people believe education is a correct and will make society, generally, a better place for everybody, others feel there's no authentic method to provide a free college education as colleges would still have to be funded (likely through tax dollars). Argue that public higher education has to be free for everybody. The Bad Secret of Persuasive Essay Topics 6th Grade If you're thinking that you require a person to compose my essay at the moment, you can merely rely on our honest reviews. At precisely the same time, it's a fantastic persuasive essay idea. The question might be part of your introduction, or it may make a terrific title. In any case, the shortage of suitable grammar makes the listeners shed respect to the speaker. So, the best method to compose a wonderful persuasive essay is to discover a theme you're familiarized with and would like to share your experience with the reader. The reader ought to take the author's side by the close of the reading. Don't neglect to bring a strong hook at the beginning (introduction paragraph) and wind up with an impressive conclusion to create the reader want to go over the interesting persuasive essay topics of your pick. Life is far better than it was 50 decades ago. Things will occur if you continue to reside. Selecting the most suitable topic is the most essential job. The Essentials of Persuasive Essay Topics 6th Grade You Can Benefit From Beginning Right Away When prior brainstorming is finished, you can begin drafting your essay. Just stick to the guidelines stated above, and you will be well on your way to writing a decent persuasive essay. The goal of brainstorming is to aid you in getting ideas. So locating the finest persuasive essay topics is vital. There are many intriguing topics that could be become a persuasive essay if you take the opportunity to think about doing it.

Wednesday, May 6, 2020

Statement of Purpose Santosh G Vattam MS Free Essays

Statement of purpose Santosh G Vattam MS, Embedded Systems (CIS), May 2012 Research Interest I am a Master of Science and Engineering student majoring in Embedded Systems from University of Pennsylvania, graduating in May 2012. I am interested in embedded systems modeling and model based code generation. This interest has developed thanks to my research project with Prof. We will write a custom essay sample on Statement of Purpose Santosh G Vattam MS or any similar topic only for you Order Now Insup Lee as well as the Embedded and Cyber Physical Systems and the Principles of Embedded Computation courses I took at Penn with Prof. Insup Lee and Prof. Rajeev Alur respectively. The Embedded and CPS course involved modeling and implementation of a pacemaker, while the Principles of Embedded Computation course provided the much needed theoritical foundation for developing embedded system models and verifying and validating thus developed models. Research projects In Jan 2011, I started working on the Medical Device Dongle(MDD) Project with Prof. Insup Lee. The idea was to make patient monitoring, patient centric rather than device centric by developing a standards-based interface for medical device interoperability. We decided to use the existing device interoperability standard – IEEE11073-PHD with slight modi cations. I implemented the rst prototype of the IEEE11073 Manager and Agent state machines. We later encountered the problem of providing a medium for using the services of the MDD and thus we designed and implemented an interface to sit on top of the MDD. We have since presented our work at the Wireless Health Conference 2011, San Diego, CA and at Embedded Software Week Android competition, Taipei, Taiwan. We shall also be presenting at the International Health Informatics Symposium, Miami, FL in Jan 2012. Prior to this, I have worked on the Coverage Analysis of RTEMS(Real Time Executive for Multiprocessor Systems) as part of Google Summer of Code 2009 and mentored another student in 2010 for the same project. This project was my rst step into the embedded world. I wrote test cases to validate that every single line of object code generated was executed. I worked on the RTEMS-core codebase and in 2010 I mentored a student to work on the extended codebase. Research focus I would like to focus my research on model based code generation and validating the conformation of code to the model on which it was based. This is a problem that I have come across while working on the MDD project. We have based our design on the IEEE11073 architecture but there are no open implementations of it through which we can verify our implementation. There are certain validation tools but these just analyze the packet structure of the 11073 packets but not the ow of these packets within the network of devices. I am partly tackling this problem through my Masters thesis by writing test cases to validate the exchange of the right packets. This method, however, does not provide insight into the internal state ow of the code. I would like to study, n depth, the ways of validating code to the state model. I believe that by pursuing a PhD I shall not only gain the necessary skill set to tackle this problem, but also the insight of looking at unstructured data and obtaining structured information from it. Prof Insup Lee and his team at the PRECISE Center work on model based design and validation in the medical device domain. I have been working with Prof. Insup Lee and his team for close to a year now on the MDD project. I believe that the environment and the expertise at the PRECISE Center will provide me with the encouragement and the academic stimulus to excel at my research. How to cite Statement of Purpose Santosh G Vattam MS, Essay examples