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10 Cards in this Set
- Front
- Back
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What was the purpose of adding manganese dioxide power to the hydrogen peroxide? |
to compare an inorganic catalyst |
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is manganese dioxide a catalyst? |
yes, reaction time was very quick |
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is manganese dioxide an enzymes? why or why n ot |
no, its not organic like enzymes |
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what effect did fractionating cells (grinding in mortar) have on the catalyst activity of catalase? why? |
More vigorous reaction due to release of catalase from ripped open cells |
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What effect did boiling have on the catalytic activity of catalase? why? |
very little reaction due to catalase being denatured |
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what effect did HCl have on the catalytic activity of catalase? why? |
HCl is a strong acid; it denatured the enzymes = very little reaction |
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how do you think the reaction would be altered if the concentration of peroxide used was greater than the 3% we used? explain you answer |
the reaction would quicken because there would be more substrate (H202) available for the catalase |
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what is the purpose of performing the glowing splint test? what does a positive result indicate to you about the catalytic cavity of the enzyme? |
the peroxide is breaking down & releasing O2 evidenced by resignation of flame |
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in what type of cell is catalase most abundantly found? |
rbcs |
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what was the purpose of observing the sand in H2O2? |
to see that the sand really plays no part in the reaction process of the grinded up liver with the H202 |
