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MDCAT · Biology · Parcha original · Sample

Enzymes speed up a chemical reaction by:

  1. A. Raising the temperature
  2. B. Lowering the activation energy✓ Correct answer
  3. C. Changing the equilibrium position
  4. D. Supplying extra substrate

Explanation

An enzyme provides another reaction pathway with a lower activation energy, so more molecules can react at body temperature. It does not change the equilibrium or the overall energy change of the reaction, and it is not used up.

انزائم ایک ایسا راستہ فراہم کرتا ہے جس میں ایکٹیویشن انرجی کم ہوتی ہے، اس لیے جسم کے درجہ حرارت پر زیادہ مالیکیول ردعمل کر پاتے ہیں۔ یہ توازن نہیں بدلتا اور خود استعمال نہیں ہوتا۔

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