Which of the following is not a mechanism used to activate substrates for further metabolism?
A) Addition of a phosphate group.
B) Combination with a vitamin, such as coenzyme A.
C) Hydrolyzing a polymer into its component monomers.
D) Addition of a phosphate group or combining with a vitamin.
E) All of these processes activate substrates.

Question

Quizplus · Accepted Answer

Hydrolyzing a polymer into its component monomers is not a mechanism used to activate substrates for further metabolism. Instead, it is a process of breaking down polymers into simpler units, which can then be used in metabolic pathways but does not in itself activate substrates for further reactions. Activation typically involves making a molecule more reactive, often through the addition of a phosphate group or combination with a coenzyme, not merely breaking down polymers.

Which of the Following Is Not a Mechanism Used to Activate