Podcast
Questions and Answers
What is the role of metal ions in enzyme catalysis for orientation of substrates?
What is the role of metal ions in enzyme catalysis for orientation of substrates?
- Shielding positive charges
- Electrostatically stabilizing negative charges
- Activating the enzyme
- Mediating oxidation-reduction reactions (correct)
What is the function of a coenzyme in enzyme catalysis?
What is the function of a coenzyme in enzyme catalysis?
- Stabilize the enzyme's active site
- Directly participate in the reaction mechanism (correct)
- Assist in substrate binding
- Provide structural stability to the enzyme
Which term describes an enzyme without its bound cofactor?
Which term describes an enzyme without its bound cofactor?
- Coenzyme
- Holoenzyme
- Cofactorase
- Apoenzyme (correct)
In enzyme catalysis, how do metal ions act similarly to H+?
In enzyme catalysis, how do metal ions act similarly to H+?
What is the term for enzymes that require a metal ion cofactor for activity?
What is the term for enzymes that require a metal ion cofactor for activity?
How do enzymes exhibit specificity towards substrates?
How do enzymes exhibit specificity towards substrates?
What did Daniel Koshland modify in the 'lock and key' model of enzyme-substrate interaction?
What did Daniel Koshland modify in the 'lock and key' model of enzyme-substrate interaction?
Which model explains both enzyme specificity and the stabilization of the transition state?
Which model explains both enzyme specificity and the stabilization of the transition state?
In chiral reactions, enzymes are typically:
In chiral reactions, enzymes are typically:
What concept from transition state theory helps explain how enzymes catalyze chemical reactions?
What concept from transition state theory helps explain how enzymes catalyze chemical reactions?
Which statement is true regarding metal ion cofactors in enzymes?
Which statement is true regarding metal ion cofactors in enzymes?
What role do coenzymes play in enzyme-catalyzed reactions?
What role do coenzymes play in enzyme-catalyzed reactions?
What region of an enzyme contains the catalytic residues and binds the substrate to carry out the reaction?
What region of an enzyme contains the catalytic residues and binds the substrate to carry out the reaction?
Which type of molecules can act as cofactors for enzymes?
Which type of molecules can act as cofactors for enzymes?
What is the role of coenzymes in enzymatic reactions?
What is the role of coenzymes in enzymatic reactions?
Which type of enzymes require metal ions for their catalytic activity?
Which type of enzymes require metal ions for their catalytic activity?
What is the function of metal ion cofactors in metalloenzymes?
What is the function of metal ion cofactors in metalloenzymes?
Which type of cofactors are most commonly associated with vitamins?
Which type of cofactors are most commonly associated with vitamins?
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