Answer:
They are the building blocks of life.
Explanation:
They are so called the building blocks of life because they make up everything
In DNA replication, the molecules that break the rungs or bases apart would be DNA Helicase, it does this by breaking and or removing the hydrogen bonds connecting the nitrogenous bases together.
At the inner mitochondrial membrane<span>, a high energy electron is passed along an electron transport chain. The energy released pumps hydrogen out of the matrix space. The gradient created by this drives hydrogen back through the </span>membrane<span>, through ATP synthase.</span>