Cofactors, Coenzymes and Prosthetic groups Flashcards
1
Q
What is a cofactor?
A
A ‘non-protein ‘helper’ which allows an enzyme to catalyse a reaction
2
Q
What are the charateristics of a cofactor?
A
Small,simple molecule/ inorganic ion
3
Q
Give an example of a cofactor
A
Chloride ion helps the amylase enzyme to catalyse reactions
4
Q
What is a coenzyme
A
A cofactor which is an organic molecule*
*organic meaning based around the carbon atoms
5
Q
Give an example of a coenzyme
A
NAD which is derived from vitamin B3
6
Q
Where are most coenzymes derived from?
A
Vitamins
7
Q
What is a prosthetic group?
A
A cofactor which is permanently bound to the enzyme and so contributes to the overall 3-D structure of the enzyme
