Active Site Flashcards
What shape is the active site not?
It is not a rigid shape
What shape is the active site?
It is a depression or pocket on the surface of the enzyme
What is an enzyme?
It is a protein that has a complex three-dimensional shape
What are many enzymes composed of?
two or more globular sections called domains, joined together
What is each active site specific to?
Each active site is specific to the substrate that it acts upon.
The substrate causes the active site to change shape slightly.
What does this result in?
The active site then fits more precisely around the substrate
What does the substrate cause for the active site to do? When does this occur?
The substrate causes (or induces) the active site to change shape slightly when they come in contact
What is the induced fit model also known as?
active site theory
what is active site theory also known as?
induced fit model
What is the induced fit model (or active site theory)?
The substrate causes the active site to change shape slightly when they come in contact
The induced fit model of enzyme action can be compared to what?
The way a bean bag with a large hollow in it, molds to fit snugly around an object
