According to the collision theory, a reaction can only occur if particles collide with sufficient energy to overcome the activation energy and with correct geometrical orientation (3). Increasing temperature increases the kinetic energy of the particles which means that an increase in temperature will increase the speed of the hydrogen peroxide and the catalase molecules which
Thousands of chemical reactions occur in every day life, at different rates and different times. Whether it be washing the dishes after dinner or brushing your teeth in the morning, they all have one thing in common; a chemical process in which reactants act mutually on each other to form a new substance. Rate of reaction is the term used to describe how quickly reactants turn into products. According to collision theory, proposed by Max Trautz and further added to by William Lewis in 1918, for a reaction to take place the colliding molecules must possess enough kinetic energy, this is called the activation energy, allowing the reactants to chemically bond. Activation energy is the minimum energy required for a reaction to occur.
Catalase speeds up the decomposition of hydrogen peroxide into harmless water and oxygen gas. Fortunately we have an enzyme in the cells in our bodies where hydrogen peroxide is produced called catalase. This enzyme catalyses the breakdown of hydrogen peroxide into harmless water and oxygen. Our bodies make use of very many enzymes to catalyse specific reactions. We rely on them to keep our bodies
Electrochemistry is the study of reactions in which charged particles (ions or electrons) appear in two phases of matter, such as the metallic phase (the electrode) or aqueous phase (the electrolyte). (Lower 2004) These reactions involve the transfer of electric charges between the electrodes and the electrolyte. These cells have two electrodes which are named the anode and the cathode. The anode is the electrode where oxidation occurs and the cathode is the electrode where reduction occurs (Electrochemical cells 2014). Oxidation always occurs simultaneously to reduction and the process of this electron transfer is named a redox reaction (A.Olivier 2010).
Introduction:- In organic chemistry the substitution reactions is the most important reactions, especially Nucleophilic aromatic substitution reactions where nucleophile attacks positive charge or partially positive charge As it does so, it replaces a weaker nucleophile which then becomes a leaving group. The remaining positive or partially positive atom becomes an electrophile. The general form of the reaction is: Nuc: + R-LG → R-Nuc + LG: The electron pair (:) from the nucleophile (Nuc :) attacks the substrate (R-LG) forming a new covalent bond Nuc-R-LG. The prior state of charge is restored when the leaving group (LG) departs with an electron pair. The principal product in this case is R-Nuc.
Then, tests are performed to determine if the products of aerobic and anaerobic respiration are present in the flasks.The citric acid cycle consists of a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the form of ATP (Biology). The tests detect the presence of carbon dioxide and ethanol. Carbon dioxide should be present irrespective of the type of respiration taking place, but ethanol is present only if fermentation has occurred. Another factor that can indicate whether fermentation occurred or cellular respiration occurred is the amount of glucose utilized during incubation.Fermentation uses more glucose because the process of fermentation is much less efficient than cellular respiration in terms of energy production per molecule of glucose used. The open flask (control) and the closed
Its application in bioremediation comes from its ability to increase in number and change its macro structure in response to oil contamination. Most organisms react to metals by detoxifying them but they make sue of different methods to do the same. Psedumonas functions by utilizing carbon that it obtains from hydrocarbon compounds. Therefore crude oil, phenol, heavy metals or other hydrocarbon compounds are its source of
By definition, a chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Chemical reactions can be used to do many daily tasks such as cooking and bodily functions. The reaction rate is the speed at which reactants are converted into products. In the lab done, the purpose was to look at the various ways a reaction rate can be changed. Multiple factors could create different rates at which the reactant will become products.
INTRODUCTION: Arginase is an enzyme- enzymes are biological catalyst which drives a reaction at the speed of life. Arginase is a hydrolase, hydrolases catalyze hydrolysis reactions, this is determined via the E.C number (Nelson and Cox 2008). Arginase has the EC number is 22.214.171.124 (Schomburg 2015). The enzyme ‘commission number’ is the arithmetical classification that is used for enzymes which indicates the chemical reaction they catalyze. EC 3 are hydrolases, which forms two products from the substrate via hydrolysis.