Podcast
Questions and Answers
What is the role of enzymes in a reaction?
What is the role of enzymes in a reaction?
- Change the equilibrium constant of the reaction
- Decrease the activation energy (correct)
- Change the overall delta G of the reaction
- Increase the activation energy
Under what condition would an enzyme be saturated?
Under what condition would an enzyme be saturated?
- High substrate concentration (correct)
- Low substrate concentration
- High enzyme concentration
- Low enzyme concentration
What does the Michaelis constant (Km) represent?
What does the Michaelis constant (Km) represent?
- The substrate concentration needed for 1/2Vmax (correct)
- The rate of reaction at Vmax
- The enzyme-substrate affinity
- The enzyme concentration required to reach Vmax
How do changes in pH affect enzyme activity?
How do changes in pH affect enzyme activity?
Which structure do proteins need to fold into to function properly?
Which structure do proteins need to fold into to function properly?
What happens to enzyme function at very high substrate concentrations?
What happens to enzyme function at very high substrate concentrations?
What is the main purpose of acid/base catalysis in enzymes?
What is the main purpose of acid/base catalysis in enzymes?
Where do enzymes lower the activation energy of a reaction?
Where do enzymes lower the activation energy of a reaction?
What model explains the phenomenon where enzymes and substrates change their shape slightly to bind together tightly?
What model explains the phenomenon where enzymes and substrates change their shape slightly to bind together tightly?
What type of catalysis involves charged molecules or metal ions to stabilize big positive or negative charges?
What type of catalysis involves charged molecules or metal ions to stabilize big positive or negative charges?
In enzyme-substrate specificity, what is responsible for determining the specificity of an enzyme?
In enzyme-substrate specificity, what is responsible for determining the specificity of an enzyme?
Which model describes the location on an enzyme where it reacts with its substrate?
Which model describes the location on an enzyme where it reacts with its substrate?
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