2.1.25 Coenzymes

Question 0

What are the two types of cofactors?

Answer 0

Coenzymes and prothetic groups

Question 1

what is a cofactor?

Answer 1

Any substance that must be present to ensure enzyme-controlled reactions take place at appropriate times.

Question 2

Where do coenzymes bind to on the enzyme, for how long and when in the reaction?

Answer 2

Bind to the active site temporarily either before or during the substrate binds

Question 3

What happens in coenzyme reactions?

Answer 3

they are changed in the reaction (like the substrate) and recycled back to take part in the reaction again (unlike the substrate)

Question 4

What is the role of the coenzyme?

Answer 4

Carry chemical groups between enzymes so they link together enzyme controlled reactions that need to take place in the sequence