Catalase work optimal in pH 7. Enzyme work specificly on certain pH. If change in pH occurs, it will slowing down the reaction rate.
If the solution is too acidic (low pH value) or too basic (high pH value) the catalase is inactive - no longer functions as an enzyme. So that's why your cells should be neutral (pH 7). Our bodies are creating Hydrogen peroxide during normal metabolic events and catalase is present in the peroxisomes of nearly all human cells. There, it serves to protect the cell from any toxic effects by catalyzing the decompostion of H2O2 without the production of Oxygen free radicals.
Catalase takes two molecules of hydrogen peroxide and converts them to two water molecules plus a molecule of oxygen gas. Hydrogen peroxide is a toxic molecule.
Amount of solution in test tube is called the controlled variable. Controlled variables must be carefully monitored and kept equal in your experiments - otherwise they could mess up your experiment by making your results false or unreliable.
Catalase, as most enzimes, has an optimal pH to achieve its maximum activity (in this case, 7.0). If you change the pH of the medium either way, you will observe a decline in its activity.
The optimal pH for catalase is 7.
acidic
Oxygen is the product of the catalase reaction causes bubbling. pH is varied when testing the effect of pH on enzyme activity.
7
Details: Hey guys. So I conducted an catalase activity experiment at school.We measured the speed of catalase activity on the disassembling of H2O2 solution. The independent variable was pH level, and the levels were 4, 6, and 10. The internet says that the catalase works best pH 7, but ironically, the catalase worked the best at pH10 in my experiment. Now I have to write Claim-Evidence-Reasoning, but I can't think of an appropriate reasoning because the result was different from what is on the internet. Can anyone explain why the catalase worked best at pH 10?
Catalase degrades easily at room temperature b. Glucose oxidase is inactivated at low pH c. Glucose oxidase is only active at low pH d. Glucose oxidase has a higher molecular weight than catalase .
The optimum pH for human catalase is approximately 7, and has a fairly broad maximum (the rate of reaction does not change appreciably at pHs between 6.8 and 7.5). It doesn't work as well above 7.5 or below 6.8.
Oxygen is the product of the catalase reaction causes bubbling. pH is varied when testing the effect of pH on enzyme activity.
7
H2SO4 is an acid, so when you add that to the catalase reactions, the pH drops below where the catalase can function. Acids have lower pH and therefore the catalase can no longer function, so the reaction stops.
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Catalase :)
Details: Hey guys. So I conducted an catalase activity experiment at school.We measured the speed of catalase activity on the disassembling of H2O2 solution. The independent variable was pH level, and the levels were 4, 6, and 10. The internet says that the catalase works best pH 7, but ironically, the catalase worked the best at pH10 in my experiment. Now I have to write Claim-Evidence-Reasoning, but I can't think of an appropriate reasoning because the result was different from what is on the internet. Can anyone explain why the catalase worked best at pH 10?
The enzyme has an optimal point of pH at which the enzyme works best. For example a catalase enzyme works best in a pH of 7. When the pH changes it denatures the enzyme causing it to not be able to react with the substrate.
Catalase is a tetramer of four polypeptide chains, each over 500 amino acids long.[3] It contains four porphyrin heme (iron) groups which allow the enzyme to react with the hydrogen peroxide. The optimum pH for catalase is approximately neutral (pH 7.0),[4] while the optimum temperature varies by species.[5]
Catalase degrades easily at room temperature b. Glucose oxidase is inactivated at low pH c. Glucose oxidase is only active at low pH d. Glucose oxidase has a higher molecular weight than catalase .
Acid rain has a low pH indicating that it is acidic. The pH in the soil can have a detrimental effect on some trees.
The optimum pH for human catalase is approximately 7, and has a fairly broad maximum (the rate of reaction does not change appreciably at pHs between 6.8 and 7.5). It doesn't work as well above 7.5 or below 6.8.
chemical digestion