Question

quiz! high temperatures, and ph changes can cause an enzyme to denature. what does this mean? a. it means that the enzyme begins to work more effectively and efficiently. b. it means the enzyme loses its shape and does not function. c. it means that the enzyme will fit new substrates and catalyze new reactions. d. it means that the enzyme will be completely destroyed.

Explanation:

Enzymes are proteins. High temperatures and pH changes disrupt their structure. When an enzyme denatures, its three - dimensional shape is altered, preventing it from binding to its substrate and performing its catalytic function. It is not about increased effectiveness (A), adapting to new substrates (C), or complete destruction (it's just a shape - change affecting function, not total destruction as in D).

Answer:

B. It means the enzyme loses its shape and does not function.