Paper 2 · Enzymes and the lock-and-key hypothesis
Why are enzymes efficient even in small quantities?
AThey react only once and are then destroyed
BThey are not used up in the reaction and can be reused
CThey only work when present in very large amounts
DThey change permanently with each reaction they catalyse
Explanation: Enzymes are not used up and can be reused.
Derived from ZIMSEC Biology 4025/2 Paper 2 Theory, November 2019, Q1
