Final answer:
Cells store energy by adding a phosphate group to ADP, forming ATP. This process occurs during phosphorylation and is essential for storing energy in the cell's phosphate bonds. Glucose entering the cell can also be turned into glycogen for storage or used immediately for energy production. correct answer is option B.
Step-by-step explanation:
How Cells Store Energy
Cells store energy primarily through the molecule ATP (adenosine triphosphate). When a cell needs to store energy, it adds a phosphate group to ADP (adenosine diphosphate) to form ATP, in a process known as phosphorylation. This process captures energy within the ATP molecule's phosphate bonds, which can be released later when the cell requires it. For instance, when glucose enters a cell, it may receive a phosphate group from ATP, thus creating glucose phosphate and converting ATP back to ADP. This glucose phosphate can eventually be stored as glycogen, or it can be metabolized to provide quick energy. Furthermore, during cellular respiration, a significant amount of ATP is synthesized from glucose - generally between 36 to 38 ATP molecules for each glucose molecule.
Other methods, such as breaking down molecules into smaller parts or producing heat, are involved in energy usage and metabolism but are not the primary means of storing energy.