Simplify the following text for a Grade 9 native English-speaking person.
Original: The term cell growth is used in the contexts of cell development and cell division ( reproduction ) When used in the context of cell division , it refers to growth of cell populations , where one cell ( the `` mother cell '' ) grows and divides to produce two `` daughter cells '' .
Simplified: Cell growth ( or interphase ) is shorthand for the idea of `` growth in cell populations '' by means of cell reproduction .