Essay on The Effect Of Enzymes On The Body

815 Words Sep 23rd, 2016 4 Pages
Boris Kozarski
Lab partner: Donovan Ortiz
Bio 118: A-65
GTA: Mian Li, UGTA: Shelby Schaffer
Intro: Enzymes are important biological molecules that help catalyze numerous reactions in the body. They are an arrangement of proteins designed to serve very specific roles. Enzymes contain active sites that substrates bind to. The enzymes then help orient those substrates so they achieve ideal reaction conditions. As a result, substrates are broken down much faster than they would on their own (Lawless 2016). Due to the fact that so many different arrangements of proteins are possible, it’s no surprise that so many reactions in the body are all able to proceed faster with the help of enzymes. In this lab, catalase was used to break down hydrogen peroxide and measure the reaction rates depending on the H2O2 concentration. The purpose of this was to see if the concentration of H2O2 affected the rate of the reaction. The hypothesis tested was that larger substrate concentrations should result in faster reaction rates because there would be more molecules to bind to the enzymes. Catalase was extracted from the liver because it is an enzyme that is responsible for breaking down toxic substances in the body. H2O2 is a toxic substance so this seemed appropriate. Factors that affect enzyme activity include temperature, pH, enzyme concentration, substrate concentration, salt concentration (Lawless 2016).
Methods and Materials: .21 grams of the liver extract was collected in a…

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