What is the purpose of a cells organelles?
Another main purpose of organelles is increased surface area. In Biology, every reaction depends on speed, and evolution has driven mechanisms that increase surface area. Many organelles are convoluted or twisted to give more space for reaction. The rough endoplasmic reticulum is highly folded with cisternae for ribosomes. The mitochondria has a folded inner membrane that increases the rate of respiration. Through increased surface area and compartmentalization, organelles give rise to complicated eukaryotic organisms.
