Organelle (cell part) Cell membrane Nucleus Nickname Function “The Barrier” Outer covering of the cell Controls what goes in and out of the cell “The Control Center” Holds the DNA The brain of the cell Nucleolus “The Mini Control Center” Produces ribosomes Vacuole “The Water Sac” Stores water, nutrients, and waste “The Highway System” The transport system of the cell Endoplasmic reticulum Organelle (cell part) Nickname Function Ribosome “The Building Blocks of Cells” Make proteins Golgi bodies Mitochondria “The Shippers” “The Powerhouse” Packages and sends materials to different locations inside/outside of the cell The part of the cell that gets energy from food to make ATP ATP is the main energy-rich currency spent by cells to do work needed to sustain life. ATP can be "made" in one place and "spent" or used in another. ATP, a high energy molecule that is used by working cells. Lysosome Cytoplasm “The Clean-up Crews” “Jelly Belly” To digest & break down food Gooey substance that holds all of the organelles in the cell