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Practice problem

What Are Enzymes? — Definition & Overview

By Hannah Bonville
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The image below shows the major steps in an enzyme-catalyzed reaction. Use it to answer the question below.

I: substrates bind to enzyme at active site. II: substrates approach enzyme. III: enzyme is reused. IV: products created and released.

Image source: By ImranKhan1992 (Own work) CC0, via Wikimedia Commons

Which of the choices below puts the steps listed in the blue box into the correct order?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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