factors that affect enzyme activity Flashcards
1
Q
what happens when the shape of the enzyme is changed?
A
the enzyme is denatured
2
Q
when do enzymes function best?
A
they function best at an optimal temperature (body temperature)
3
Q
when the temperature is too low?
A
molecules move too slowly and dont form as many enzyme-substrate complexes
4
Q
when the temperature is too high?
A
extra heat can cause the active site to change shape and not bind the substrate which results in fewer enzyme-substrate complexes
5
Q
what pH do they work best in?
A
enzymes have an optimal pH in which they work best
6
Q
pepsin
A
pepsin only works best when it is in a low pH (acidic) environment (ex. in stomach)
7
Q
trypsin
A
trypsin works best at a pH of 6 to 8 (ex. in small intestine)
8
Q
what happens when there are changes in the pH?
A
it can denature the enzyme
