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Cell Anatomy Super-Dooper Cell Notes Parts of a Cell 1. Cell (Plasma) Membrane--”gatekeeper” Encloses the cell (double layer of fat and proteins) ALL cells have one Selectively permeable Cell Membrane See figure 3.2 page 58 Cell Parts (cont.) 2. Cytoplasm: “Living stuff” Jello-like substance that gives the cell shape and suspends the organelles (little organs). All the chemical reactions take place here! It’s a boppin’ busy place! Cell Parts (cont.) 3. Nucleus: “Control Center” Usually near the middle (center) of the cell surrounded by a nuclear membrane Contains the genetic information “DNA” Nucleolus: Place where ribosomes are made. Cell Parts (cont.) 4. Ribosomes: “protein factories” Proteins are made here!! Think spots or dots! Cell Parts (cont.) 5. Endoplasmic Reticulum (ER)-”Canal System” Transportation system Compartmentalizes the cell Rough ER-has ribosomes Smooth ER-no ribosomes Cell Parts (cont.) 6. Golgi Apparatus stack of flattened sacs Concentrates and Packages cell proteins for shipping around the cell (like gift wrapping) QuickTime™ and a d eco mpres sor are nee ded to s ee this picture . Cell Parts (cont.) 7. Mitochondria- “Powerhouse” Respiration center--sugar is burned to create Energy! Cell Parts (cont.) 8. Lysosome - “Garbage disposal, suicide sac” Contain digestive enzymes to break up worn out cell parts and invaders like bacteria Sometimes digest really bad stuff and die so the cell can live. Look like waffles Peroxisome Membrane sacs containing enzymes to detoxify harmful substances and disarm free radicals. Converts free radicals to hydrogen peroxide then catalase converts that to H2O and O2. Cell Parts (cont.) 9. Cytoskeleton- “Wonder bra” Gives support and shape Helps cells to move Cell Parts (cont.) 10. Centrioles - “cellular churros” Helps cells to divide Lie close to the nucleus QuickTime™ and a d eco mpres sor are nee ded to s ee this picture . Cell Parts (cont.) 11. Vacuole- “Water Tower” Stores water Look like bubbles Cell Basic Unit of structure and function of all living things All organelles are inside the cell