How are ATP and ADP important to the functioning of the human body?

The cells need energy. They can't use food (like sugar or protein) directly as energy sources instead they use

Adenosine diphosphate (ADP) and adenosine triphosphate (ATP). These two play important roles in providing cellular energy.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

d. planting trees

the trees take in carbon to make oxygen.