Answer:
So...
Explanation:
When a reaction occurs without an enzyme (a catalyst, meaning that it speeds up reactions), the activation energy is much higher than that of a reaction using an ezyme. This is due to the fact enzymes lower the activation energy (energy needed to start a reaction) meaning that there's a higher chance of successful collisons between the active site's of enzymes and substrates - forming enzyme-substrate complexes.
Hope that helps! x
