How does an enzyme change the activation energy for a reaction in a cell?

a. Enzyme increases the activation energy
b. Enzyme does not affect the activation energy
c. Enzyme lowers the activation energy.

The correct answer is option c. "Enzyme lowers the activation energy".

Explanation:

The activation energy is defined as the amount of energy needed for a reaction to take place. Enzymes catalyze reactions by lowering the activation energy, which speeds up the reaction and increases its rate. Enzymes put a substrate in its active site, which facilitates the reaction and makes more likely that it collides with its subsequent substrate.

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