According to the induced fit model, what happens when a substrate binds to an enzyme?

Answer and explanation

Correct answer: A. The active site changes shape to fit the substrate and lower the activation energy

  1. Step 1: Induced fit says the active site is flexible and adjusts around the substrate.
  2. Step 2: This strains bonds and lowers the activation energy for the reaction.
Answer
the active site changes shape to fit the substrate.
Why not the others: A rigid site describes the older lock and key model; enzymes are not consumed; enzymes do not use ATP to reshape substrates.

Practise more Nucleic Acids, Proteins, Enzymes and Cellular Energy.

Free questions with an explanation for every one, and full timed Victorian VCE mock tests.