7) Reaction kinetics

Question 1

D) Enzyme classes (6 types)

Answer 1

1) Oxidoreductases - Redox reaction catalysts
2) Transferases - Transfer functional groups betw donors and acceptors
3) Hydrolases - Catalyse substrate hydrolysis
4) Lyases - Catalyse removal of any group excl hydrolases
5) Isomerases - Catalyse intermolecular rearrangement
6) Ligases - Catalyse the union of 2 molecules

Question 2

E) Rate law

Answer 2

v = k[A]m[B]n
overall order = m + n

Question 3

E) 0th order half life

Answer 3

= [A]0 / 2k

Question 4

E) 1st order half life

Answer 4

ln2/[A0]

Question 5

E) 1st order reaction

Answer 5

ln[A]t = ln[A0] - kt

Question 6

E) 2nd order half life

Answer 6

1/k[A0]

Question 7

E) 2nd order reaction

Answer 7

1/[A]t = 1/[A0] + kt

Question 8

E) Enzyme reactions

Answer 8

E + S <-> ES -> E + P

Question 9

E) Enzyme rate of reaction

Answer 9

v = k [ES]

Question 10

E) Enzyme-substrate concentration (2x equ)

Answer 10

[ES] = k1[E][S]/k-1 + k2
OR
[ES] = [E][S]/kM

Question 11

E) Michaelis menten

Answer 11

v = Vmax[S]/ KM+[S]

Question 12

D) rate laws for elementary steps

Answer 12

1 molecule reactant - 1st order
2 molecules - 2nd order
3 molecules - 3rd order