Question

1. all of the following may inhibit enzymatic reactions except:

a. temperature
b. ph level
c. excess of substrate
d. lack of substrate

Explanation:

Enzymatic reactions are affected by factors like temperature (extreme temps can denature enzymes), pH (optimal range exists), and substrate concentration. Lack of substrate limits the reaction as there's not enough to bind. But excess substrate doesn't inhibit. Once all enzyme active sites are occupied (saturation point), adding more substrate just means it has to wait for an enzyme to become free (no inhibition).

Answer:

C. excess of substrate