This website uses cookies to ensure you have the best experience. Learn more

Biology At1 'rate Of Reaction' Planing And Obtaining

687 words - 3 pages

This experiment aims to find the factors that effect enzymes focusing on concentration for the test itself. This test will involve the enzyme amylase and starch to test the effect of concentration on a substrate.The enzyme amylase has a certain protein structure meaning it can only link with starch much like puzzle boards only have certain peices that fit into each other. It is this shape that the enzyme has that causes the reaction (a puzzle could not be completed if the peices didn't fit into each other) This process is known as hydrolysis and usually occurs in the presence of water, under highly acidic conditions however (amylase being highly acidic) it can break down biological substances into fatty acids and in this case maltose.The factors that effect enzymes are- *temperature: Increasing the temperature leads to an increase of particle movement and increases the chance of the enzyme hitting a starch particle. When they do collide they link together and react so an increase in temperature causes a higher rate of enzyme reaction. Above about 60? enzymes begin to collapse causing them to be unreactive, it is said they are denatured.*PH: All enzymes must have the right conditions to work as, if the PH is either too acidic or too alkali then they become denatured and can no longer link with other chemicals. That is the reason why enzymes such as pepsin can only reside in the stomach as they can only work in acidic conditions (PH 1-3).concentration: This is the factor i will be concentrating on in this experiment. If there are more amalase particles during the reaction the substrate will have an abundance of molecules to link with and a higher chance of collision thus allowing the reaction to be completed. If the substrate is at a higher concentration than the enzyme however then the reaction will be slower as the collision rate will be lowered and the reaction could not be completed as there wouldn't be enough free enzyme molecules.*these...

Find Another Essay On Biology AT1 'rate Of Reaction' Planing And Obtaining

The Rate Of Reaction Between marble Chips and Hydrochloric Acid

1396 words - 6 pages IntroductionWe are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid.When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon

How Concentration and Temperature Affects the Rate of Reaction

804 words - 3 pages How Concentration and Temperature Affects the Rate of Reaction between Magnesium Ribbon and Hydrochloric Acid. WHAT I AM INVESTIGATING I am going to investigate how concentration and temperature affects the rate of reaction between magnesium ribbon and hydrochloric acid. MY PREDICTION The thing which I expect to happen is the more acid added to water the faster the reaction will happen. Also the hotter the solution the quicker

Order of Reaction / Rate Law

684 words - 3 pages The order of a reaction is the power to which the concentration of a reactant must be raised to give the experimentally observed relationship between concentration and rate The rate of a reaction depends in part on the concentrations of the reactants. For a reaction in which reactant A forms product B in one step, you can write a simple equation. A→B The rate at which A forms B can be expressed as the change in A (∆A) with time

Rate of Reaction Using Enzymes

3788 words - 15 pages biological one called an enzyme. Hydrogen Peroxide slowly breaks down on its own accord into water (H2O) and oxygen (O2): 2 H2O2 à 2H2O + O2 Hydrogen Peroxide à Water + Oxygen In my experiment, I want to investigate the rate of reaction with an enzyme, and the enzyme I will add to the Hydrogen Peroxide will be Catalase. The enzyme will accelerate the rate of reaction without being used up, for that is a property

How the rate of reaction changes in a reaction between Hydrochloric Acid and Sodium Thiosulphate

1118 words - 4 pages Chemistry coursework:An investigation of the affect of the concentration an of the rate of reaction.Introduction.We are trying to find out the affect of acid concentration on the rate of reaction, we are using 2, 1.5, 1, 0.5, 0.25 Molar acid. In our experiment, we are reacting it with sodium thiosulphate. The collision theory will be involved in this, for instance the more concentrated the acid we use, the faster the reaction will occur and the

Biology AT1 on the affect of hydogen peroxide on the liver

680 words - 3 pages right enzyme, it fits into a depression on the surface of the enzyme molecule. This depression is called the active site. The reaction then takes place and the molecules of product leave the active site, freeing it for another substrate molecule. Hydrogen peroxide is a waste product produced during respiration. Hydrogen peroxide is produced to kill off dangerous bacteria. The hydrogen peroxide is broken down, so that it can not be

What factors can affect rate of reaction?

819 words - 3 pages There are several factors which can affect the Rate of Reaction. These include:1) Temperature:At higher temperature, the particles have more kinetic energy. They move more rapidly through the solution, they collide more often and more vigorously, so the chance of a reaction increases. The time taken for a certain amount of collisions to occur decreases, so the overall time for the reaction to occur would also decrease. This will be counteracted

The Factors Controlling the Rate of the Sodium Thiosulphate and Acid Reaction

4099 words - 16 pages The Factors Controlling the Rate of the Sodium Thiosulphate and Acid Reaction Planning I am investigating the factors controlling the rate of thiosulphate / acid reaction. The reaction that will be taking place will follow the rate at which sulphur is formed in the reaction of sodium thiosulphate with dilute hydrochloric acid. In the experiment the sulphur will appear as an extremely fine precipitate. This will

Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid

2245 words - 9 pages Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid Rates of Reaction: Investigation Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid. Chemical reactions between substances are caused by the collision of particles. More collisions mean a quicker rate of reaction. In the reaction between hydrochloric acid and magnesium

Exploring Factors That Affect the Rate of a Chemical Reaction Involving Magnesium and Hydrochloric Acid

1581 words - 6 pages What factors affect the rate of this chemical reaction: Magnesium + Hydrochloric Acid  Magnesium Chloride + Hydrogen Mg (s) + 2HCl (aq)  MgCl2 (aq) + H2 (g) Prediction I think that my results will show that the hydrochloric acid with a molarity of 2 will finish reacting the quickest because it is the strongest hydrochloric acid and I predict that the slowest experiment to finish reacting will be the 0.4 molar strength of

Investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid

1644 words - 7 pages Investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric AcidDiagramAim : We did 4 experiments to find out how the rate of reaction changes with differing concentrations of Sodium Thiosulphate, Hydrochloric Acid and water. As an inert and stable liquid, water was used to alter concentration of Sodium Thiosulphate without changing the end amount of solution. All the atoms in a water molecule have a full outer shell, so they

Similar Essays

Rate Of Reaction Coursework Essay

532 words - 2 pages temperature. 2) Increasing the concentration (in solution). 3) Increasing the pressure (in gases). 4) Increasing the surface area of a solid. 5) Use a catalyst. Measuring the Rate. The reaction between sodium thiosulphate solution and dilute hydrochloric acid. HCl + sodium thiosulphatearrowsodium chloride + sulphur dioxide + sulphur + water. HCl(aq) + Na2S2O3(aq) arrow NaCl(aq) + SO2(g) + S(s) + H2O(l) The solid sulphur (S(s)) formed in

Rate Of Reaction Coursework Essay

1198 words - 5 pages rate of reaction. My graph clearly shows that as the concentration of the acid was increased the reaction took place in less time. There is a significant difference between the amount of time taken from the lowest concentration to the highest concentration of acid. The graph is not linear and there is a slight curve in the results, this shows that the rate was not proportional and the rate of the reaction changed. This may be because of a change of

Rate Of Reaction Investigation Essay

888 words - 4 pages Aim:To investigate the rate of reaction in different concentrations of acid using Magnesium strips.Prediction:I predict that the rate of reaction will increase as the concentration of acid increases. I know this because the collision theoryEquipment:* 15 Test Tubes* 1 Measuring Cylinder* Safety Goggles* 1 Test Tube Rack* 1 Stop Clock* Scissors* Ruler* Water basin* ScissorsReactants:The reactants I am going to use are:1.0M, 1.25M, 1.5M, 1.75M and

Rate Of Reaction Between Hydrochloric Acid And Calcium Carbonate

2874 words - 11 pages Rate of reaction between Hydrochloric Acid and Calcium Carbonate Calcium carbonate reacts with hydrochloric acid to form carbon dioxide gas. One way of following the rate of reaction at which it reacts is to measure the volume of carbon dioxide produced at certain time intervals during the reaction. CaCO + 2HCl CaCl + H O + CO =========================== Calcium Carbonate + Hydrochloric Acid Calcium Chloride + Water + Carbon Dioxide