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Cell size is limited because _____________ is critical to a cell's function.

  1. cilia movement

  2. surface area to volume ratio

  3. the number of microvilli

  4. the size of the nucleus

  5. ability to photosynthesize



A cell needs a surface area large enough to allow adequate nutrients to enter and wastes to exit. Small cells are more likely to have an adequate area for exchanging nutrients and wastes.