Each of the following is true of enzymes except ________.
A) they can be used over and over
B) they may or may not require cofactors
C) their active site is specific to the substrate
D) they increase the initial energy required for a reaction to start
E) All of the choices are true of enzymes
Correct Answer:
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A)vitamins.
B)metallic ions.
C)active sites.
D)substrates.
E)ribozymes.
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A)enzymes
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Q18: Enzymes that are only produced when substrate
Q18: Enzymes are _.
A)broken down in reactions that
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