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Biology
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Please help,I don't quite understand this: A student fills each of two test tubes half full of hydrogen peroxide and notices no reaction occurs in either tube. When she adds a small piece of fresh liver to one of the test tubes, she observes a great deal of bubbling in that tube. A test shows that the bubbles escaping are oxygen gas. The piece of liver must contain: a) an enzyme that acts upon hydrogen peroxide. b) some hydrogen peroxide. c) co-enzymes released in the reaction. d) oxygen gas from the living tissue.
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I'm not quite absolutly positve, but I'd go with a or d.
thax anyway
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