Podcast
Questions and Answers
What is the role of enzymes in biological systems?
What is the role of enzymes in biological systems?
- Speed up chemical reactions by raising the temperature
- Slow down chemical reactions by forming higher energy transition states
- Act as catalysts to accelerate reactions without changing temperature (correct)
- Prevent chemical reactions from happening in cells
What is the main purpose of a biological catalyst like an enzyme?
What is the main purpose of a biological catalyst like an enzyme?
- Decrease the rate of reactions in cells
- Prevent the formation of products in reactions
- Increase the energy of transition states in reactions
- Accelerate chemical reactions in cells (correct)
How do enzymes accelerate reactions compared to uncatalyzed reactions?
How do enzymes accelerate reactions compared to uncatalyzed reactions?
- By slowing down the reaction rate
- By forming higher energy transition states
- By decreasing the activation energy required (correct)
- By increasing the amount of reactants needed
Why are enzyme-catalyzed reactions highly specific?
Why are enzyme-catalyzed reactions highly specific?
What is one way in which enzymes interact with substrate molecules?
What is one way in which enzymes interact with substrate molecules?
Why can't biological systems rely solely on raising temperatures to accelerate reactions?
Why can't biological systems rely solely on raising temperatures to accelerate reactions?
Which statement best describes the active site of an enzyme?
Which statement best describes the active site of an enzyme?
Which model best explains the specificity and rate enhancement of enzyme-catalyzed reactions?
Which model best explains the specificity and rate enhancement of enzyme-catalyzed reactions?
How do enzymes achieve their specificity for particular substrates?
How do enzymes achieve their specificity for particular substrates?
What is the role of the enzyme in lowering the activation energy of a reaction?
What is the role of the enzyme in lowering the activation energy of a reaction?
Which of the following statements is true about ribozymes?
Which of the following statements is true about ribozymes?
What is the significance of the induced-fit model in explaining the rate enhancement of enzyme-catalyzed reactions?
What is the significance of the induced-fit model in explaining the rate enhancement of enzyme-catalyzed reactions?
