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Name: ________________________________________________ Date: __________________ Period: ______ Structure and Function of Organelles Name of Organelle Structure Function Chromosomes long, coiled chain building block of DNA Ribosomes (small black dots) composed of two parts known as the large and small subunits makes protein for the cell Vacuole has no basic shape or size, its structure varies according to the needs of the cell stores food, water and waste Mitochondria Contains inner and outer membranes makes energy for the cell Cell Wall (plant) lies outside the cell membrane and is made of cellulose provides support and protection for the plant cell Golgi Body Stacks of membrane-bound structures known as cisternae prepares proteins for secretion by the cell double layer that holds the genetic material separated the contents of the nucleus from the cytoplasm Round shape, and found near the center of the cell contains DNA and directs most of the cell’s activities Nuclear Membrane (black outline) Nucleus Letter Chloroplast (plant) disc-shaped Cell Membrane thin layer that encloses the cell gives plants their green color, and contains chlorophyll that helps plants make food controls what enters and leaves the cell Endoplasmic Reticulum network of tubes the transportation system for the cell Cytoplasm gel-like material contains all the organelles Lysosomes Bag-like structures that are bound by a single layer membrane contains digestive enzymes
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