Answer:
Endoplasmic Reticulum: help form and store proteins.
Golgi Body: sorting and processing proteins.
Mitochondria: converts food (or protein) into energy.
Ribosome: synthesize proteins for use throughout the cell.
Hope this helps
-Amelia
Mutation. this happens when a cell copies its DNA to divide. its more common than you may think, a "typo" occurs every 100, 000 or so nucleotides, thats about 120, 000 "typos" every time a cell divides.