Learning objective
Explain that enzymes lower activation energy and catalyse reactions.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Biological molecules official content
Subtopic
Many proteins are enzymes
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Understand this objective
Quick explanation
Explain that enzymes lower activation energy and catalyse reactions
- This point belongs to Biological molecules official content, especially Many proteins are enzymes.
- You need to be able to explain that enzymes lower activation energy and catalyse reactions.
- The key ideas to know are enzyme and activation energy.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Many proteins are enzymes to exam-style questions, flashcards, and revision notes for Biological molecules official content.
Quick student answer
What is the primary role of enzymes in biochemical reactions?
Direct answer
Enzymes lower the activation energy required for reactions, allowing them to proceed more quickly.
Key terms
- Enzyme: A protein that acts as a catalyst to accelerate a biochemical reaction.
- Catalyst: A substance that increases the rate of a chemical reaction without being consumed in the process.
Common trap
Confusing activation energy with overall energy change: Remember that activation energy is the energy needed to initiate a reaction, while the overall energy change refers to the difference in energy between reactants and products.
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Revision notestopic notes
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