Investigating enzymes essay

Create a diagram that illustrates the aE of a reaction in the presence and absence of an enzyme. Bio Ia Ensymes Essay words - 8 pages concentration of enzyme amylase on rate of reaction of amylase, on the hydrolysis of starch into maltose. It depends on the order and number of amino acids in a particular protein.

The pH must be kept the same since pH is a limiting factor for enzymes. This was discovered on the pH of 5.

An Investigation of the Effect Enzyme Concentration The Investigating enzymes essay in temperature could have given this anomaly in theory but it would have had to be a Investigating enzymes essay change. The enzymes will be acquired from a company and the concentration will be stated in the new bottle.

The repeats done for the investigation were sufficient as a general trend was discovered but if the experiment were to be done again, more repeats would be done and their averages found out to get even more reliable results and to ensure that even the slightest anomalies did not affect the results.

The stop clock will be started as soon as the two solutions are mixed together in the testube and the solution in the testube will be poured into the cuvette which will be put into the colorimeter.

This variable is going to be controlled by using a scalpel to cut out a 1 cm piece of potato and ensuring that its width throughout is 3 mm. Repeat steps for each pH, and record all the values on the results table, a full set of data should be acquired.

The substrate used in this experiment is hydrogen peroxide. However in Koshland suggested an Induced Fit hypothesis. Introduction Enzymes are biological catalysts that catalyze biochemical reactions in living cells.

One reason is the contamination of the buffer solution. Results In the experiment, three repeats were done for each different buffer solution. Going beyond the pH of 8.

In anaerobic conditions yeast cells break down sugar molecules into ethanol and produce carbon dioxide. One type of enzyme per type of chemical reaction that needs to be catalyzed. The potatoes will be exposed to different pHs, ranging from 2,4,6,8 and In future attempts a different range of pHs could be used for example: However, an anomaly was found as it can be seen in figure 5.

Looking at the graph it can be also deduced that the trypsin did not work best at the acidic conditions. This variable will be controlled using a pH probe.

These theories helped explain what went on when the casein binded with the trypsin and this helps show that the casein was the right shape for the trypsin in my experiment. The graph also shows that the enzyme used has the optimum pH of 8.

Enzymes are able to speed up reactions and can repeat reactions.

Investigation on the effect of pH on enzymes Essay Sample

Salivary amylase is produced by the salivary glands found in our mouths, they work best at almost neutral pH, so they cannot work when the pH becomes too high or too low. Method All of the testubes will be washed thoroughly and rinsed out with distilled water to minimise the chance of contamination that could affect our results.

This is because salivary amylase works best at an almost neutral environment like that found in our mouth. If it is found that the enzyme works best at alkaline conditions, it will determine the enzyme is made in the duodenum as from previous scientific knowledge, the duodenum has a pH of 8 that neutralises the acidity of the stomach.

Introduction Hydrogen peroxide H2O2 is a very pale blue liquid which appears colourless in a dilute solution, slightly more viscous than water. The trypsin is a enzyme so referred to as a globular protein and consists of chains that are folded over to make a three-dimensional shape and give its specific shape which in turn shapes the active site Therefore, at lower pHs of the experiment, the rate of reaction was not as quick as the pH was far from the optimum pH what the pH works at best.

Potatoes Solanum tuberosum are tubers and therefore are the starch stores for plants, meaning they contain a lot of starch.

They speed up chemical reactions. How can the Michaelis Menten constant for the dextrase content of yeast be calculated with simple experiment on hydrolysis of sucrose?

This variable does not include uncertainties since no equipment will be used to generate the results.Essay about Investigating Enzyme Activity - Investigating Enzyme Activity Aim: To investigate how the concentration of hydrogen peroxide effects the rate of reaction of an enzyme (catalase) Variables: These factors could effect the rate of reaction on an enzyme: · pH · Concentration · Temperature · Surface Area pH - Enzymes function at different pH values.

Also investigating how different factors affect the rate of reaction with the enzymes like the change of temperature or the concentration (instead of 2% protease) would be considered to illustrate the characteristics of enzymes.

Essay about Investigating Enzyme Activity - Investigating Enzyme Activity Aim: To investigate how the concentration of hydrogen peroxide effects the rate of reaction of an enzyme (catalase) Variables: These factors could effect the rate of reaction on an enzyme: · pH · Concentration · Temperature · Surface Area pH - Enzymes function at different pH values.

Free Essay: Investigating the Effect of Lipase Concentration on the Breakdown of Fat in Milk INTRODUCTION: Enzymes are proteins which can catalyse chemical.

Investigating Enzyme Activity Essay

Essay on Investigating Enzyme Activity - Investigating Enzyme Activity PLANNING AIM === The aim of this experiment is to see how changing the concentration of Hydrogen Peroxide (H2O2) affects the rate of reaction of the enzyme Catalase.

This investigation aims to determine how different pHs affects the action of salivary amylase on starch by analyzing how it affects the color change of the iodine solution on thin strips of potatoes that were soaked in different pHs, ranging from acid, neutral and alkali environments.

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Investigating enzymes essay
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