Almost everything. ATP is the energy currency of the cell. Almost anything that requires energy uses ATP
ATP is the energy carrier molecule in the cell. The third phosphate can be released from the molecule releasing energy.
ATP is used as energy to aid in several steps in the photosynthesis cycle to produce glucose. This same glucose will be "burned" in cellular respiration to produce more ATP
ATP is used to fuel motor proteins that move cell parts along microtubules. Without ATP the cell would not be able to transport material within the cell and the cell would die.
ATP provides the energy that moves the bacterial flagella. Without ATP the ability of cells to move would be gone.
ATP activates enzymes. Most chemical reactions within a cell depend on enzymes. Without ATP many chemical reactions need for life would not occur.
ATP controls the calcium pump and sodium potassium pump. This regulates the concentrations of these positive ions necessary for the health of the cell. ATP allows the cell to interact with the outside environment regulating important parts of what comes in and out of the cell.
Even the replication of DNA requires ATP, which in turn provides the information for the formation of ATP
You gotta have the ATP to get the energy A song that reminds students of the importance of ATP