What are 2 parts of the cell that work together to perform a task? And how do they function and how do they work together?

To complete the certain task, cell organelles work in their consecutive roles  and carries that specific task.

Explanation:

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.