Prokaryote DNA replication subunits

[hidemi]

Homework Statement

Which factor does NOT consume energy by breaking phosphoanhydride bonds?
A) the action of DnaB
B) the action of DnaG
C) DNA gyrase
D) TUS/Ter binding
E) DNA ligase

The answer is D

Relevant Equations

None

Why (A) and (B) need to break phosphoanhydride bonds? Thanks

 

[Ygggdrasil]

Do you know the functions of DnaB and DnaG?

 

[hidemi]

Thanks for your hint. I finally understood!