Topic 20 Co-factors and co-enzymes Flashcards
1
Q
Match the following:
- reversible
- irreversible
a. coenzyme
b. prosthetic group
A
1a
2b
2
Q
Why do cofactors usually have ring structures?
A
they act as electron sinks
3
Q
dehydrogenase
A
an enzyme that catalyses the oxidation of a substrate by NAD(P)+ (NAD(P)H is formed)
4
Q
Reductase
A
An enzyme that catalyses the reduction of a substrate by NAD(P)H
5
Q
Oxidase
A
An enzyme that catalyses the oxidation of a substrate and reduction of molecular oxygen
6
Q
Draw Alcohol detoxification
A
7
Q
Draw the forming of ROS
A
O2 (+ electron) O2- (+ electron and 2 protons) H2O2 (+ electron) OH(radical) (+ electron) H2O
8
Q
Ferrous, Ferryl and Ferric
A
2+, 4+, 3+
