Question

question 1 - 8
at very high temperatures, most enzymes do not increase the rate of the reactions they regulate. what is the most likely reason for this lack of enzyme activity at very high temperatures?
the enzyme denatures and can no longer function properly.
the enzyme would have already broken down at a much lower temperature.
the products would have already been used up in the reaction by the time it reaches that high temperature.
the enzyme would have already sped up the rate of reaction as much as it could and would not be affected by the increase in temperature.

Explanation:

Enzymes are proteins. High temperatures cause protein denaturation, altering their three - dimensional structure and thus their function.

Answer:

The enzyme denatures and can no longer function properly.