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Enzyme Essay Examples

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Microbiology Unknown

The purpose of this report was to identify an unknown bacterium by applying methods that were previously learned and conducted in microbiology lab class. It is possible to identify a mixed culture by running experiments on the unknown bacteria and taking what we already know and applying it to the results. It helps to slowly…

Factors Affecting the Rate of Enzyme Activity

The Purpose of doing this experiment is “how factors affect on the rate of enzyme activity.” “We examine the affects of enzyme activity when exposing enzymes to different substrates, PH and temperature. In this experiment a type of enzyme called Peroxides has been used. Peroxidase is the enzymes are found in living organism so, it…

Mastering Biology Suggested Answer Book

The rate of reaction increases when the polyphenol oxidase concentration increases. 1m b Rate of reaction = 1/18 = 0.056 1m From the graph, the enzyme concentration is around 1.15%. 1m c Use boiled enzyme in the tube. 1m d The enzyme does not work in acidic medium. / The enzyme is denatured in acidic…

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Yeast Fermentation

The aim of this experiment was to investigate the effect of different amounts of a substrate on the respiration rate of yeast and to compare this to the effect of different amounts of glucose on the rate of yeast respiration. The substrate which I chose to further investigate was fructose. Fructose is a fruit sugar…

Yeast Lab Report

Are there any differences in the rate of metabolism of a dried yeast culture with differing carbohydrate sources? In the current practical that was undertaken the growth rate of yeast (S. cerevisiae) with differing carbohydrates sources : Glucose (C6H12O6), Fructose (C6H12O6), Lactose (C12H22O11), Xylitol “(CHOH)3(CH2OH)2” and Water (H2O) as a Control were observed. “ Yeast…

Enzyme-controlled reaction

Write an explanation of how any two factors affect the rate of an enzyme-controlled reaction. How do these factors affect the chemical structure and properties of the enzyme. Many things can affect the rate of enzyme activity. The temperature of the enzyme, the pH of the solution, the concentration of the enzyme, substrate and the product….

Lab report on enzyme activity

Enzymes are a protein serving as a catalyst, a chemical agent that changes the rate of the reaction without being consumed by the reaction. Enzymes are proteins made up of long chains of amino acids. These form complex shapes. The enzymes are individuals, like the different players on a ball team, they have different specific…

The respiration of yeast in different sugar substrates

Aim: The aim was to compare the respiration of yeast in different substrates of sugars, i.e. between a monosaccharide (glucose) and a disaccharide (maltose) Theory: There are three types of Carbohydrates, monosaccharides, disaccharides, and polysaccharides. The two, which I will be looking at, are, monosaccharide (glucose) and the disaccharide (maltose) Classification and major properties of…

Investigating Effect

Plan Aim: The aim of the experiment is to find out what effect temperature has on the action of a protease enzyme on exposed developed film. Enzymes are biological catalysts. They are made in livings things built up by amino acids to make protein. Enzymes are able to speed up reactions and can repeat reactions….

Why doesn’t jelly set when fresh pineapple is used?

Basic Problem: Jelly is made from protein, gelatin, this is dissolved in hot water and as it cools, it sets. For a childrens party it was decided to make some fruit jellies, these were made by putting sliced pineapple into the jelly before it set, the following observations were made: oThe jelly set normally when…

The Iodine Test sor Starch

The purpose of this experiment was to use Iodine, Benedict and Biuret to test the reaction of the following 12 samples: 1% glucose, 0. 3% glucose-1-phosphate, 1% maltose, honey, 1% sucrose, 1%lactose, 1% glycogen, 1% starch, protein, beer, distilled water and an unknown solution (test tube: 300). The iodine test for starch was to test…

Enzyme and Heavy Metals

These heavy metals are toxic to life because they generally bind tightly and permanently to the active sites of enzymes, thus destroying their catalytic properties and deactivating them (permanently). This therefore restricts substrates being broken down by enzymes to allow the human body to function properly since the heavy metals take similar pathways to that…

Alkaline Phosphatase

The Effects of varying p-Nitrophenyl Phosphate concentrations on Alkaline Phosphatase Activity Nathan Overholt Louis Settembrino March 5, 2002 Abstract: The enzyme Alkaline Phosphatase was set up in solutions of varying p-nitrophenyl phosphate concentrations. A fixed time assay was used to find the Michaelis constant and Vmax. All solutions were incubated at 30 C° for 30…

Biology: Experiment

Aim: The aim of the experiment is to test the effect temperature has on the activity of the enzyme rennin. Hypothesis: I believe the rate of reaction will speed up as the temperature increases until it reaches about 37oC, which is the body temperature, where it will begin to slow down and stop reacting. I…

The Influence of pH on the Activity of Catalase Enzyme

Introduction The biocatalyst activity is influenced by a number of factors, such as affinity and substratum concentration, temperature, pH-medium, the presence of activators and inhibitors. Experts identify four types of elements that determine the catalytic spree of an enzyme. First, we need a chemical apparatus in a dynamic center, capable of deforming or polarizing bonds…

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