1.7/1.8 Enzymes Flashcards
Are enzymes globular or fibrous?
Globular
When an enzyme is bonded to a substrate what is it called?
An enzyme substrate complex
What factors affect enzyme rate?
pH
Temp
Number of enzyme
Number of substrate
Inhibitors
Why do some molecules bind but not react with enzymes?
Due to the distortion of the active site
What breaks in the induced fit in enzymes?
Ionic bonds
Which explains activation energy
Describe the induced fit
Where the enzyme changes shape to allow the substrate to bind
Explain the gradual increase at the start of the temp to ror graph
Minimal kinetic energy
Low activation energy
Enzymes denature
Active site distorts
Less enzyme substrate complexes
What does the concentration of enzymes/substrates look like and why does it look like that?
A linear line that quickly plateaus
Enzyme or substrate quickly becomes a limiting factor
What is the plateau point in the concentration of enzymes to ror called?
The point of saturation
What is a competitive inhibitor?
A molecule with a similar shape to a substrate which binds to an enzymes active site and blocks the substrate from binding
What is a non competitive inhibitor?
A molecule which bonds to an allosteric site on an enzyme which cause distortion of the active site preventing substrates from binding
