2.4 enzymes Flashcards
1
Q
What are the two types of enzymes?
A
Anabolic and metabolic
2
Q
What is the definition of an enzyme?
A
Enzymes are 3D biological catalysts that speed up reactions without themselves being used up.
3
Q
What is a cofactor?
A
a substance (other than the substrate) whose presence is essential for the activity of an enzyme.
4
Q
What is a prosthetic group?
A
A cofactor that is permanently bound by covalent bonds to an enzyme molecule
5
Q
What are coenzymes?
A
Small organic non protein molecules that bind temporarily to the active site of the enzyme molecules. They are chemically changed during the reaction.
6
Q
What is the induced fit hypothesis?
A
The active site is not a rigid fixed structure, and can change to fit the substrate.
