7.2 Flashcards
(16 cards)
Define enzyme.
A catalyst which is a substance that speeds up chemical reactions.
Define substrate.
Reactant which binds to the enzyme.
Define active site.
Where the substrate fits into the enzyme
Define activation energy.
Minimum energy required to have a reaction.
What are the properties of enzymes?
Reaction specific, not consumed in reaction, and affected by cellular conditions
What is dehydration synthesis?
Process of two substrates becoming one product.
What is hydrolysis?
Process of one substrate becoming two products.
What is the relationship between reaction rate and substrate concentration?
The more substrates, the more collisions and the higher the reaction rate until there’s nothing to collide with.
What is the relationship between reaction rate and enzyme concentration?
The more enzymes, the more collisions and the higher the reaction rate until there’s nothing to collide with.
What is the relationship between reaction rate and temperature?
The reaction’s highest at the best temperature which varies.
What is the relationship between reaction rate and pH?
The reaction’s highest at the best pH which varies.
How do you maximize enzyme activity?
The amount of substrates and enzymes that create the best temperature and pH for the substance
What is similar between noncompetitive inhibitors and activators?
They both change the shape.
What is different between inhibitors and activators?
Activators turn on enzymes and inhibitors turn off enzymes.
What is similar between inhibitors?
They both turn off enzymes.
What does more successful collisions cause?
Higher temperature.
