Looking Inside Eukaryotic Cells PARTS OF A CELL “PARTS OF A CITY” TWO TYPES OF CELLS 1) PROKARYOTE Without a nucleus = Bacteria TWO TYPES OF CELLS 2) EUKARYOTE With a nucleus = Animal & Plant STRUCTURE OF A TYPICAL PLANT CELL PLANT CELL CELL WALL “SHORELINE & BOUNDARY” A RIGID LAYER THAT PROVIDES SHAPE AND SUPPORT TO A PLANT CELL STRUCTURE OF A TYPICAL ANIMAL CELL ANIMAL CELL CELL MEMBRANE “OUTER GATE” CONTROLS WHICH SUBSTANCES CAN ENTER OR LEAVE THE CELL OUTER GATE NUCLEUS “BRAIN OR COMPUTER” THE CONTROL CENTER OF A CELL THAT DIRECTS THE CELL’S ACTIVITIES; CONTAINS GENETIC MATERIAL CALLED CHROMOSOMES MADE OF DNA BRAIN = COMPUTER CYTOPLASM “ATMOSPHERE” THE VISCOUS GEL-LIKE MATERIAL INSIDE A CELL; CONTAINS ORGANELLES “ENVIRONMENT” ENVIRONMENT ATMOSPHERE MITOCHONDRIA “POWERHOUSE” ROD-SHAPED ORGANELLE WHERE ENERGY FOR CELLULAR FUNCTIONS IS PRODUCED MITOCHONDRIA = POWER PLANT POWERHOUSE ENDOPLASMIC RETICULUM ( E R ) “HIGHWAY” MAZE OF PASSAGEWAYS IN WHICH MATERIALS ARE CARRIED FROM ONE PART OF THE CELL TO ANOTHER HIGHWAY = TRANSPORTATION RIBOSOME “FACTORY & PRODUCERS” A TINY STRUCTURE IN THE CYTOPLASM OF A CELL WHERE PROTEINS ARE MADE RIBOSOME = FACTORY GOLGI BODY “POST OFFICE” PACKAGES & DISTRIBUTES PROTEINS IN LITTLE BUBBLES TO OTHER PARTS OF THE CELL GOLGI BODY = POST OFFICE CHLOROPLASTS “FARM & SITE OF PHOTOSYNTHESIS” CAPTURE ENERGY FROM SUNLIGHT AND USES IT TO PRODUCE FOOD FOR PLANT CELLS ; CONTAIN CHLOROPHYLL VACUOLE “GROCERY STORE” BUBBLE-LIKE ORGANELLE THAT STORES FOOD, WATER, OR WASTE LYSOSOME “RECYCLERS & DIGESTION CENTER” A SACLIKE ORGANELLE IN ANIMAL CELLS THAT CONTAINS CHEMICALS THAT BREAKDOWN FOOD OR WASTE MATERIALS DIGESTION CENTER Lysosomes are relatively large vesicles formed by the Golgi. They contain hydrolytic enzymes that could destroy the cell. Lysosome contents function in the extracellular breakdown of materials.