Question

What does it mean when an enzyme is denatured?

a
the active site changes shape

b
more enzymes are formed

c
the enzyme disappears

d
the active site accepts more substrates

Answer 1

The answer should be C) The enzyme disappears.

Answer 2

Pretty sure the answer is D
the active site accepts more substrates

This is why...
Change the pH and the enzyme stops working. Increasing the temperature to 60°C will cause a permanent change to the shape of the active site. This is why enzymes stop working when they are heated. We say they have become denatured.