Enzymes Flashcards
1
Q
what type of structure does enzymes have
A
tertiary
2
Q
what are enzymes
A
tertiary structure protein which catalyse reaction
3
Q
which part of the enzyme catalyses a reaction
A
the active site
4
Q
what makes the active site unique and specific in shape
A
the specific folding of its tertiary structure > so only substrates which are complementary in shape can attach
5
Q
what is the activation energy
A
the minimum amount of energy required for a reaction to take place
6
Q
what are the two models for enzyme action
A
lock and key model
induced fit
7
Q
outline lock and key model
A
- enzyme is like a lock and substrate is like a key
- enzyme active site is a fixed shape
- random collisions cause substrate to attach to the enzyme forming an enzyme-substrate complex
