Question

Which of the following correctly applies to a catalyst? A. They do not actually participate in...

Which of the following correctly applies to a catalyst?

A. They do not actually participate in the chemical reaction and therefore is unchanged at the end of the reaction.
B. They provide an alternate lower energy mechanism by which the reaction proceeds.
C. They must be in the same phase as the reactants in the chemical reaction.
D. Biological catalysts are proteins called substrates.

A) A, D
B) A, B
C) B, C
D) B

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Answer #1

Catalyst may participate in a chemical reaction but remains unchanged at the end of the reaction.

They provide a laternative path, they need not to be in the same phase, enzymes are protiens called as biological catalyst but not substrate.

Hence, the the correct option is D

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