Is energy always associated with biochemical processes?

Answer 1

Yes, all biochemical processes involve energy "transactions." To expand on what the other tutor posted, exergonic reactions release energy, and this energy is coupled to endergonic reactions that utilize this free energy to move reactions forward. Sometimes, the transaction is significant, meaning that a substantial amount of energy is required to move the reaction forward. For example, hydrolysis of ATP, an exergonic process, powers key enzymatic reactions in our cells. In other instances, such as oxidative phosphorylation, electrochemical gradients provide energy necessary for a process to occur.

Answer 2

Yes. Sometimes energy is generated, and other times energy is consumed.

See exergonic vs endergonic.