Question

In the lock-and-key model of enzyme action, the ___________ fits into the __________ of the enzyme.

A.) product; substrate
B.) active site; product
C.) substrate; active site
D.) active site; substrate

Answer 1

In the lock-and-key model of enzyme action, the "Substrate" fits into the "Active site" of the enzyme

In short, Answer would be Option C

Hope this helps!