Which aspect of the roman empire aided in the spread of christianity?

Persecution of  Christians by the Romans facilitated the rapid growth and  spread of Christianity.

In the first three centuries, there was a lot of persecution of the Christian Church  by Roman authorities. This ended up having a significant historical effect in that many Christians fled far and wide in the old world  and wherever they went they preached the gospel of Christ.

About 12 emperors of Rome in the period 30 t0 311AD went out of their way to persecute Christians, and it was in this periods that Christianity spread widest. 

the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.