Podcast
Questions and Answers
What role does a metal ion activator serve in enzyme catalysis?
What role does a metal ion activator serve in enzyme catalysis?
- Serve as a bridge to hold the substrate and enzyme together
- Enhance enzyme specificity towards a variety of substrates
- Function as a stabilizing agent in the conformation for catalytic activity (correct)
- Act as the primary catalytic center
What is the general nature of enzymes?
What is the general nature of enzymes?
- Nucleic acids
- Lipids
- Proteins (correct)
- Carbohydrates
How do enzymes enhance the rate of chemical reactions?
How do enzymes enhance the rate of chemical reactions?
- By directly participating in the chemical reaction
- By lowering the activation energy required for the reaction to occur (correct)
- By increasing the temperature of the reaction mixture
- By changing the pH of the reaction environment
What is the specific region of an enzyme where the substrate binds called?
What is the specific region of an enzyme where the substrate binds called?
What is the main function of oxidoreductase enzymes?
What is the main function of oxidoreductase enzymes?
How do enzymes catalyze physiologic reactions?
How do enzymes catalyze physiologic reactions?
What is the purpose of ensuring that the substrate concentration is in excess in enzyme reactions?
What is the purpose of ensuring that the substrate concentration is in excess in enzyme reactions?
Which of the following is NOT considered a cofactor for enzymes?
Which of the following is NOT considered a cofactor for enzymes?
What is the function of coenzymes in enzyme reactions?
What is the function of coenzymes in enzyme reactions?
What is the role of prosthetic groups in enzyme function?
What is the role of prosthetic groups in enzyme function?
In reversible reactions, what characterizes a competitive inhibitor?
In reversible reactions, what characterizes a competitive inhibitor?
What defines absolute specificity in enzymes?
What defines absolute specificity in enzymes?
What is the defining characteristic of non-competitive inhibitors in enzyme kinetics?
What is the defining characteristic of non-competitive inhibitors in enzyme kinetics?
How do irreversible inhibitors differ from reversible inhibitors in terms of enzyme inactivation?
How do irreversible inhibitors differ from reversible inhibitors in terms of enzyme inactivation?
What effect does a non-competitive inhibitor have on enzyme activity?
What effect does a non-competitive inhibitor have on enzyme activity?
Why does increasing substrate levels have no influence on the binding of a non-competitive inhibitor?
Why does increasing substrate levels have no influence on the binding of a non-competitive inhibitor?
In irreversible inhibition, how does an inhibitor act as a 'suicide inhibitor'?
In irreversible inhibition, how does an inhibitor act as a 'suicide inhibitor'?
How do uncompetitive inhibitors influence enzyme activity?
How do uncompetitive inhibitors influence enzyme activity?
