Biology

Biology, 07.07.2019 15:20, 245cat

Why did the catalase function level off when different hydrogen peroxide concentrations were tested?

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Biology, 26.06.2019 08:00, UsedForSchool2018

You are studying enzymes in biology class. hydrogen peroxide (h2o2) is produced as a byproduct of respiration. hydrogen peroxide is harmful to cells and must be continually broken down. catalase is an enzyme found in living cells that speeds up the breakdown of hydrogen peroxide into water and oxygen (2 h2o2 → 2 h2o + o2). you are working with your lab group to investigate what factors influence the rate of the peroxide reaction. your lab group is provided with liver samples as a source of catalase, as well as 3% hydrogen peroxide. you decide to investigate if adding more enzyme will cause the reaction to proceed faster. you set out to prove the hypothesis: if more catalase is provided, then the rate of the peroxide reaction will be faster. what would be a good choice for your independent variable? a) 3,5, and 10 g samples of liver b) measuring the amount of oxygen produced c) 1%, 3%, and 10% concentrations of hydrogen peroxide d) 10 ml, 20 ml, and 30 ml volumes of hydrogen peroxide

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Biology, 29.07.2019 06:30, aprilpendergrass

Someone which statement is correct, with regard to the catalase enzyme catalyzing the breakdown of hydrogen peroxide into water and oxygen? a. water is a substrate in this reaction. b. bonds in the hydrogen peroxide are weakened in catalase's active site, allowing the chemical reaction to occur. c. hydrogen peroxide is produced by the catalase enzyme. d. the breakdown of hydrogen peroxide would still occur naturally but occurs less rapidly with the catalase enzyme.

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Biology, 29.07.2019 07:00, justiceisbae1

Which statement is correct, with regard to the catalase enzyme catalyzing the breakdown of hydrogen peroxide into water and oxygen? a. water is a substrate in this reaction. b. bonds in the hydrogen peroxide are weakened in catalase's active site, allowing the chemical reaction to occur. c. hydrogen peroxide is produced by the catalase enzyme. d. the breakdown of hydrogen peroxide would still occur naturally but occurs less rapidly with the catalase enzyme.

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Biology, 22.10.2019 18:00, saharaapollonio

B) a popular lab that can be performed by students is to test the reaction rate of catalase enzyme when it acts on the substrate hydrogen peroxide. catalase has the ability to break down hydrogen peroxide. catalase can be found in beef liver from the grocery store! however, if the beef liver is boiled first, the catalase will not be able to break down hydrogen peroxide. 5. variable affecting enzyme function:

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