-Extreme changes in temperature, particularly heat, can denature proteins and enzymes. Why might this cause a problem?
A) The denatured enzymes would speed up chemical reactions to a pace too fast for the cells.
B) The denatured enzymes would not function; thus, critical reactions would be unable to occur in the cell.
C) The denatured enzymes would not function; thus, negative feedback would be inhibited.
D) The denatured enzymes would not function; thus, the activation energy for reactions would be reduced.

Question

-Extreme changes in temperature, particularly heat, can denature proteins and enzymes. Why might this cause a problem?
A) The denatured enzymes would speed up chemical reactions to a pace too fast for the cells. 
B) The denatured enzymes would not function; thus, critical reactions would be unable to occur in the cell. 
C) The denatured enzymes would not function; thus, negative feedback would be inhibited. 
D) The denatured enzymes would not function; thus, the activation energy for reactions would be reduced.

Quizplus · Accepted Answer

Denatured enzymes lose their three-dimensional structure, which is crucial for their catalytic activity. Without their proper shape, enzymes cannot bind to their substrates and catalyze reactions, leading to a halt in critical cellular processes.

-Extreme Changes in Temperature, Particularly Heat, Can Denature Proteins and Enzymes