Question

part b
what would happen if enzyme a were placed in an environment with a ph of 9?

a enzyme a be transformed back into rna
b enzyme a would be come more efficient.
c enzyme a would become the substrate for enzyme c
d enzyme a would slow or stop functioning.

Explanation:

Enzymes have an optimal pH range for activity. A drastic change in pH (like to 9, depending on the enzyme's optimal pH) can disrupt the enzyme's structure (denaturation), affecting its active site and thus its function. If Enzyme A's optimal pH is not 9, a pH of 9 would likely cause it to lose catalytic activity, so it would slow or stop functioning. Option A is incorrect as enzymes don't transform back to RNA (most enzymes are proteins, some are RNA but transformation back isn't due to pH). Option B: pH change to non - optimal usually reduces efficiency, not increase. Option C: Substrate - enzyme specificity isn't changed by pH to make Enzyme A a substrate for Enzyme C.

Answer:

D. Enzyme A would slow or stop functioning.