1.7 enzyme action Flashcards
1
Q
what is activation energy?
A
minimum energy required for a reaction to take place
2
Q
are enzymes globular or fibrous?
A
globular
3
Q
what is the active site of an enzyme?
A
specific region of the enzyme which is functional
4
Q
what is a substrate?
A
molecule on which the enzyme acts
5
Q
what is formed when a substrate fits into an active site of an enzymes?
A
enzyme- substrate complex?
6
Q
describe the induced fit model
A
- in the presence of a substrate the enzyme’s active site changes
- this lowers the activation energy in the substrates
7
Q
how is the induced fit model different to the lock- and -key model?
A
- enzyme changes shape in IFM, enzyme is rigid in LAKM
- substrate is not complementary in IFM, substrate is complementary in LAKM
