9. Endoplasmic reticulum A n ER is an extensive membranous network in the eukaryotic cell, the ER modifies proteins, makes macromolecules, and transfers substances throughout the cell.
10. Mitochondria Also known as the power house of the cell, it provides energy for the cell that it needs. The mitochondria is a self-replicating organism; that also contains DNA by which they control synthesis of their own proteins.