Here's why:

* Interphase is the period in the cell cycle when the cell is not actively dividing. It's the longest part of the cell cycle.

* During interphase, the cell grows, synthesizes new proteins and organelles, and replicates its DNA in preparation for cell division.

* The cell's metabolic activities, such as energy production, protein synthesis, and waste removal, are all happening during interphase.

Let me know if you have any other questions!