Podcast Beta
Questions and Answers
What role do enzymes play in metabolic reactions?
What is the primary function of a catalyst?
Which statement about activation energy (EA) is correct?
Which of the following is true about enzymes and their effect on reactions?
Signup and view all the answers
What happens to the energy profile of a reaction when an enzyme is introduced?
Signup and view all the answers
Study Notes
Enzymes and Catalysis
- Enzymes are protein catalysts that accelerate metabolic reactions by lowering energy barriers.
- A catalyst is a chemical agent that speeds up a reaction without being consumed in the process.
- An example of enzyme activity is the hydrolysis of sucrose by the enzyme sucrase, illustrating a specific enzyme-catalyzed reaction.
Chemical Reactions
- Chemical reactions involve both breaking and forming of bonds between molecules.
- Activation energy (EA) is the energy required to initiate a chemical reaction, which is often provided as thermal energy absorbed by reactant molecules from their surroundings.
Enzymatic Action
- Enzymes function by lowering the activation energy needed for reactions to occur.
- While enzymes speed up the rate of reactions, they do not alter the change in free energy (∆G) of the overall reaction.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers key concepts related to enzymes and their role as catalysts in chemical reactions. It explains how enzymes lower activation energy and provides examples like the hydrolysis of sucrose. Test your understanding of enzymatic action and chemical reactions.
