When all substrates are used, the reaction stops. 2. Enzymes speed up the reaction by lowering the activation
energy needed for the reaction to start. Compare the activation
energy with and without the enzyme.
without en
Identify the part of the graph that shows:
B
IA
a) L overall energy released during reaction
b) Activation energy with enzyme
Activation energy without enzyme
Energy
tants
products
Reaction coordinate
3. Enzymes work best at optimal temperature and pH
values. For example, the enzyme, pepsin, in your
Lipase
stom must be able to function in highly ridin
Pensin