How do enzymes affect reactions?


How do enzymes affect reactions?

Activation Energy:

The activation energy of a reaction is the amount of energy needed to cause the reaction to start. Not all chemical reactions have an activation energy, and some will start spontaneously without any added energy or catalyst. One example of this is sodium and water, which will react without any outside encouragement.

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Enzymes, which are proteins, behave as catalysts in chemical reactions. A catalyst is a substance that increases the rate at which a reaction occurs...

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Enzyme Rate of Reaction: Factors & Catalysts


Chapter 3 / Lesson 2

Learn how an enzyme influences biological reactions. Read about rate-limiting enzymes and how factors such as pH and substrate concentration affect enzyme activity.

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