Enzymes __________________ the activation energy of a chemical reaction?
Correct answer: B. Decreases
- A. Increases
- B. Decreases
- C. Does not effect
- D. Increases or decreases depending upon individual enzyme
Explanation
Enzymes decrease activation energy by providing an alternative reaction pathway, allowing more molecules to react at a given temperature. A student may choose d because enzymes can affect reaction rates in different ways, but catalysts do not increase activation energy, and the net enzyme effect is its reduction.
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About Characteristics of Enzymes
Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.
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