BRAINCAKE

Lock and Key Hypothesis

OCR AS-level BiologyEnzymesLesson 3 of 20

The previous model of enzyme action was that the substrate fits into the active site like a key fits in a lock.

The shape of the enzyme is complementary to a specific substrate which fits exactly into the active site.

Diagram

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz

BrainCake is free. Make an account in seconds and pick up where this page stops.

More in Enzymes

All 20 lessons in Enzymes · All OCR AS-level Biology topics