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Transcript
Cell Organelles What are they and how are plant and animal cells different? Section 3.2 NUCLEUS The Brain Mitochondria The Powerhouse of the Cell More Numerous in Muscle cells Large Central Vacuole & chloroplast What two cell organelles were once thought to be prokaryotic cells? Mitochondria and chloroplasts! They both are membrane bound and contain their own circular DNA Cell Membrane Phospholipid bilayer • Selectively permeable • Controls what enters and leaves the cell Protein channels Ribosomes most numerous organelle Free in cytoplasm or attached on Rough ER Involved in Protein Synthesis Endoplasmic Reticulum Involved with protein synthesis Produces lipids for cell membrane Golgi Apparatus • Modifies, secretes, and stores chemicals • Processes proteins produced by ribosomes Lysosomes Contains digestive enzymes Breaks down old organelles The Janitor of the Cell Only found in animal cell Plant Cells vs Animal Cells Rectangular shape Circular shape Cell wall Lysosomes Chloroplasts Centrioles Large central vacuole
