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1. In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2? A ---(E1)---> B ---(E2)---> C ---(E3)--->
(A): A and B will still be produced, but not C or D
(B): A will still be produced, but not B, C, or D
(C): A, B, and C will still be produced, but not D
(D): A, B, C, and D will all still be produced
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