3. 3
What Are Enzymes?
• Most enzymes are
Proteins (tertiary and
quaternary structures)
• Act as Catalyst to
accelerates a reaction
• Not permanently
changed in the process
• Are specific for what
they will catalyze
• Are Reusable
4.
5.
6.
7. Chemical Nature of Enzyme
Protein enzymes are classified into 2 types:
1 Simple Protein enzymes: They are formed of
protein only.
2 Complex (conjugated) Protein : They are formed of
protein part and non
protein part.
Protein part: called Apoenzyme
Non- protein: called Coenzyme
The whole enzyme is called holoenzyme
8. 8
How do enzymes Work?
Enzymes work by
weakening
bonds which
lowers
activation
energy
