Which is a key component of the energy molecule atp?

The key component of the energy molecule, ATP is the ribose.

Explanation:

The ATP molecule is formed by one Adenosine (Adenine + Ribose) and three Phosphate molecules. The bonds that keep the second and third phosphate radicals trapped in the ATP are very energetic. Thus, every time the third phosphate comes loose from the set, energy will release to hold it together with ATP. The chemical bonds between two of the ATP phosphates are graphically represented by the ~ (tilde) symbol.

Ribose is the main component of this system, besides being the largest, where the bonds are established.

your answer is "the 1950's"