What are Enzymes? (AQA A-Level Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the collective term for all chemical reactions in living organisms?
What is the collective term for all chemical reactions in living organisms?
Metabolism
Which type of reaction breaks down large molecules into smaller ones?
Which type of reaction breaks down large molecules into smaller ones?
Catabolic
What is an example of an anabolic reaction?
What is an example of an anabolic reaction?
Protein synthesis
What happens to enzymes during the reactions they catalyse?
What happens to enzymes during the reactions they catalyse?
They remain unchanged
What are enzymes constructed from?
What are enzymes constructed from?
Long chains of amino acids
Which factors can alter an enzyme's shape and affect its function?
Which factors can alter an enzyme's shape and affect its function?
Temperature and pH
What are the specific starting materials that enzymes convert called?
What are the specific starting materials that enzymes convert called?
Substrates
What does the specific shape of an enzyme's active site determine?
What does the specific shape of an enzyme's active site determine?
Which substrate molecules can bind
What does an enzyme do during the reaction facilitation step?
What does an enzyme do during the reaction facilitation step?
Lowers the activation energy
Why do biological washing powders contain enzymes?
Why do biological washing powders contain enzymes?
Break down stains at lower temperatures