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An apoenzyme:

is part of a simple enzyme
is also called a coenzyme
contains the active site
is often an inorganic metal ion
is an RNA molecule

User NocFenix
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1 Answer

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Final answer:

An apoenzyme is the protein part of an enzyme that becomes active upon binding with a cofactor or coenzyme, with cofactors being inorganic metal ions and coenzymes typically being organic molecules derived from vitamins.

Step-by-step explanation:

An apoenzyme is the protein component of an enzyme, which requires the binding of a non-protein molecule called a cofactor or coenzyme to become an active enzyme, or holoenzyme. Cofactors are often inorganic metal ions such as Zn²⁺ or Mg²⁺, whereas coenzymes are organic molecules that are typically derived from vitamins. When a cofactor or coenzyme binds to an apoenzyme at its active site, the enzyme attains its proper structure and becomes capable of catalyzing its specific chemical reaction. An example of a cofactor is the zinc ion needed for the function of DNA polymerase, and examples of coenzymes include NADH and ATP, which provide high-energy electrons or phosphate groups to activate enzymes.

User Simran Marok
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