Question

how is the energy released during cellular respiration used in a Cell

Answer 1

Cellular respiration is the process of breaking down glucose molecules into energy in the form of ATP.  The process requires oxygen and gives off carbon dioxide as a waste product.  ATP powers all cellular activities. 
In respiration glucose molecules react with oxygen atoms to form carbon dioxide and water.  In this chemical reaction energy is released in stored in the form of ATP.  In the reaction glucose is oxidized and energy is released.