ipl-logo

Free Radical Research Paper

1019 Words5 Pages

Free radicals contain an electron (e–) as in case of superoxide (•O2–) radical and the hydroxyl radical (•OH) whereas reactive oxygen species (ROS) as a non-radical do not contains electron in hydrogen peroxide (H2O2) and organic hydroperoxides (ROOH). Radicals can react with other radicals or with non-radicals depending on availability of (e–). Initiation of free radical chain reaction occurs if polyunsaturated fatty acid is attacked by free radicals. This phenomenon occurs due to abundant molecular oxygen (O2) presence which reacts rapidly with free radicals. By-product of normal aerobic metabolites as superoxide radical (•O2–) are produced by addition of one electron to O2 (a univalent reduction of O2). Superoxide radical (•O2–) is a good reducing molecule but it considered as poor oxidising agent. …show more content…

Production of powerful oxidant, peroxynitrite (ONOO–) is considered as ‘reactive nitrogen species’ (RNS). Further this may further produce other reactive species similar to hydroxyl radical (•OH) however not always interaction between superoxide radical (•O2–) and nitric oxide (NO•) results in biologically harmful effect. During many enzymatic reaction, SOD-catalysed dismutation form O2 and hydrogen peroxide (H2O2) or it is formed by spontaneously reduction of two molecules of (•O2–). Hydrogen peroxide (H2O2) & superoxide radical (•O2–) enters into the cells in the same way as H2O enters. In the presence of transition metal ions like low molecular mass iron or copper,

Show More
Related
2136 Words | 9 Pages

The enzyme of turnip peroxidase is added in the equation to catalyze the oxidation. Objectives The objective

Read More
1100 Words | 5 Pages

We also tested to see if Peroxidase was able to recover its catalytic ability after being exposed to sub optimal temperatures. After being brought to optimal temperatures the solutions were still able to react,

Read More
698 Words | 3 Pages

There were many groups living in the United States between 1860 and 1900 and most of the groups we can categorize people into had very different viewpoints. The main groups that most can be categorized into are the wealthy, the common people, the Indians and the Chinese. Starting with the wealthy they looked at the west as a big fat paycheck, the wealth folks went out west and bought up lots of land and production and monopolized, while the common people competed with these big companies for free and cheap land because they were the poor back east and came out west with hopes of finding gold while mining or getting rich off abundant crop land or maybe it was some common women who came out west because they were allowed to purchase land out west. The Indians were native to the west and after immigration started some of the bigger tribes fought back but most tribes were too small and were forced by the American

Read More
261 Words | 2 Pages

The Founders Club is one of Florida’s pre-eminent country club and golf communities. The Founders Club offers over 700 meticulously landscaped acres with 262 homes featuring golf, lake, or preserve views. Residents of the Founders Club enjoy the peace and serenity offered by a private community, yet gain easy access to some of the most popular dining, shopping and entertainment throughout Sarasota. The Founders Club offers signature amenities for each resident that includes a classic Robert Trent Jones constructed 18-hole golf course.

Read More
650 Words | 3 Pages

P1 Explain the issues organisations must consider when planning computer systems maintenance The issues that organisations must consider when planning a computer system are as follow; Employee and Employer Responsibilities - It is the Cortex’s’ responsibility to make sure the employee is allowed to have scheduled breaks when they require them. As part of their contract they also have to provide the employee with the correct ergonomic equipment so they can do their job and work efficiently, this means that the employee is more effective and reliable when working from their desk as they have the correct equipment. Employees also have a responsibility this is making sure they use the business network entirely for work related purposes and not for downloading anything that infringes the contractual agreement they have in place this is known as the Acceptable Usage Policy. Cortex is also protected by the Computer Misuse Act.

Read More
1090 Words | 5 Pages

ABSTRACT To catalyze a reaction, an enzyme will grab on (bind) to one or more reactant molecules. In this experiment we examined how increasing the volume of the extract added to the reaction would affect the rate of the reaction. The enzyme used was horseradish peroxidase which helps catalyze hydrogen peroxide. Using different pH levels, the absorbance rate of the reaction was measured to see at which condition the enzyme worked best. The rates of absorption were calculated using a spectrophotometer in 20 second intervals up to 120 seconds.

Read More
1131 Words | 5 Pages

P1: describe the potential prompt that initiate the installation of new upgraded software There are different reasons that would prompt people to upgrade their software. This could be the response to a bug that is identified or it can allow the hardware device to run more efficiently so that it can improve the functionality of the software when you upgrade it. You must be aware of these prompts so that when a software upgrade shows up you should always act with them in an appropriate manner in some situations it is important for ensuring the security of your computer systems. Problems with existing systems PC can become slower or develop a fault and to fix it, it would be necessary to install new software on the computer.

Read More
1400 Words | 6 Pages

APUSH Unit 2 Long Essay In 1603, the English were still a small rising nation, poorer than most, and less powerful than Spain and France. Although the British colonies settled in the Americas late, they quickly became a dominant force in the new world. After they acquired their first permanent settlement in Jamestown, VA in 1607, the British became attracted to greater power and more land, which was the first building block of perhaps the most powerful European nation of the time period. Due to their growth in the Americas, the British were able to be compared to the Spanish colonies of the time period, which boosted the English’s confidence.

Read More
1043 Words | 5 Pages

Chem 111 Post-Exam Self-Assessment See the instructions in Canvas for more details about how this assignment will be scored. 1. Fill in these blanks: Exam Number __3__ Your Predicted Exam Score _75_% Actual Exam Score _77.67% Current Course Score _

Read More
788 Words | 4 Pages

Introduction New Hope is known for its quintessential suburban neighborhoods, scenic parks and being home to one of the largest elderly populations. Many denizens have also served in varying branches of the military during World War II, as well. The city is equipped with reliable and widespread public transportation, health services, churches, shopping centers, restaurants, libraries and a plethora of sprawling open spaces and parks. Positive Attributes

Read More
583 Words | 3 Pages

George Jenkins High School is known for their dreadful football team but mainly their revolting bathrooms. High School presents many struggles for teenagers. One of these struggles is prominent in the lives of all who appreciates going to the bathroom with cockroach’s crawling up your leg and urine all over the floor. Nobody in high school seems to understand simple etiquette and manners when using a bathroom. The ideals are often ignored and overlooked for the sake of getting to class on time.

Read More
838 Words | 4 Pages

This is because hydrogen peroxide is unstable and when decomposed it increases the thermal temperature. Introduction: Hydrogen peroxide (H202) is an often-unstable compound that has a similar chemical formula with water but with an extra oxygen (Cool Science). Hydrogen peroxide has many uses and benefits that include: fighting infections, alternative to bleach, removing mold, and sanitizing meat as well as many other functions (Andrea Harper). Hydrogen peroxide is often decomposed into oxygen and water but with usual environments it decomposes at a slow pace.

Read More
1182 Words | 5 Pages

Introduction In class, a series of experiments were performed that pertained to the enzyme known as catalase, which converts hydrogen peroxide into oxygen. Due to peroxide being toxic to the tissues of both plants and animals, both possess the enzyme catalase, which breaks into two non-toxic compounds: water and oxygen gas. Enzymes are proteins that react to certain substrates to create a product, and continue doing so afterwards. Methods and Materials To test reactions between catalase and hydrogen peroxide, groups of three to four people were formed.

Read More
959 Words | 4 Pages

The bottom line-- Little Alchemy won’t teach anyone any foreign concepts, but it is a great way for kids to build interest in science and mathematical learning. It offers structure to down time and a basic learning environment. It is not completely challenging, but still offers a competitive drive. Little Alchemy lacks an objective and has no pull on human emotion, however, it offers an intellectual approach to creativity, a competitive edge to a simple plot, and an adrenaline rush that keeps the player wanting more.

Read More
1443 Words | 6 Pages

Oxidizing capacity is less then ozone but much stronger than chlorine and chloramines. Chlorine dioxide sanitizes through oxidation. It is the main biocide that is an atomic free radical. It has 19 electrons and has an inclination for substances that takes an electron. On the other hand chlorine when reacts with any substance it adds chlorine molecule or substitutes chlorine atom from substance.

Read More

More about Free Radical Research Paper

Related Topics

Open Document