10 Questions
What are enzymes?
Proteinic molecules that speed up biological reactions
What is the compound on which an enzyme acts known as?
Substrate
What is a holoenzyme?
A complete, functional enzyme consisting of an apoenzyme and a cofactor
Where does the catalysis occur in enzymes?
In the substrate-specific region
What does the activation energy represent?
The energy barrier that needs to be overcome for a reaction to occur
Which type of cofactors are small organic molecules?
Coenzymes
What is the most common type of cofactor?
Metal ions
What is the main function of metal-activated enzymes?
Require metal ions as loosely bound cofactors
Which model of enzyme binding states that the active site is complementary in shape to the substrate and does not change at all?
Lock-and-Key Model
What type of specificity does the enzyme exhibit if it acts on a particular steric or optical isomer?
Stereochemical specificity
Learn about enzymes, proteinic molecules that act as catalysts to speed up biological reactions. Understand the structure and function of enzymes, including the substrate binding region and holoenzyme composition.
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