ATP can be hydrolyzed in two ways: the removal of terminal phosphate to form adenosine diphosphate (ADP) and inorganic phosphate, or the removal of a terminal diphosphate to yield adenosine monophosphate (AMP) and pyrophosphate.
Driving with failing or broken struts is dangerous because they do not sufficiently dampen side-to-side and front-to-back weight transfers.
Fifteen years ago, we could say that shocks are used on full-frame cars and trucks, and struts are used on unibody vehicles. Today, that is totally false. With the innovative newer suspension designs, there is not one definitive type of vehicle that struts, shocks, coil-overs, or air suspension belongs under.