Hydrogen peroxide is toxic to cells, yet it is a common byproduct of the reactio
ID: 3506457 • Letter: H
Question
Hydrogen peroxide is toxic to cells, yet it is a common byproduct of the reactions that occur inside the body. How is this compound changed and what is the less toxic result?
Do plant and animal cells contain enzymes that break down hydrogen peroxide? How could you test this?
3. Design an experiment to determine the optimal concentration of salivary amylase, complete with controls. Where could you obtain amylase for this experiment? What substrate would you use?
4. Do you expect more enzyme activity if the substrate concentration is altered? Draw a graph to illustrate this relationship. Consult sources if necessary.
test tube temperature Balloon Circumference INITIAL (cm) Balloon Circumference FINAL (cm) refrigator room temp hot waterExplanation / Answer
Hydrogen peroxide is toxic to cells, yet it is a common byproduct of the reactions that occur inside the body. How is this compound changed and what is the less toxic result?
Answer.Hydrogen peroxide may be broken by enzyme catalase into water and oxygen hence; its toxicitycould be overcome.
2.The enzyme is called catalase and is found in both animals and plants. There is no difference between plant and animal catalase and it serves the same purpose in both viz. that of breaking down Hydrogen Peroxide to Water and Oxygen. In animal cells, catalase is found in organelles called peroxisomes. An example of where catalase comes into play in animal physiology is during the final stages of aerobic respiration. During the Electron Transport Chain, Hydrogen Peroxide is formed as a toxicby-product which is quickly broken down by catalase. In human beings, the largest source of catalase is the liver. In plants, catalase is used to break down the Hydrogen Peroxide produced by the oxidation of fatty acids and photorespiration.
3.It could be performed via taking Pepsin enzyme from lab. Protein supplement could be taken assubstrate and as control we may take water. When the temperature condition increases then its reactivity increases. After getting its optimum temperature it shows maximum .activity while,then increment in temperature may destroy it.
4.If the concentration of substrate isincreased you would see an increase in the amount of enzyme activity, consequently if the concentration was lowered the activity would decrease. This is because the amount of keys bouncing around would be altered, which would increase or decrease the amount of times you would see a reaction .
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