revised

• Nucleus parts


  Nuclear Envelope

  Chromatin

  Nucleolus
• Nuclear envelope (Definition)


  membrane enclosing the nucleus. Protein-lined pores allow material to move in and out
• Chromatin (Definition)


  DNA plus associated proteins
• Nucleolus (Definition)


  Condensed region where ribosomes are formed
• Peroxisome (Definition)


  Metabolizes wastes
• Endoplasmic reticulum (Types)


  Rough

  Smooth
• Endoplasmic reticulum (Rough)


  Associated with ribosomes; makes secretory and membrane proteins
• Endoplasmic reticulum (Smooth)


  Makes lipids
• Cytoskeleton (Parts)


  Microtubules

  Centrosome

  Intermediate filaments

  Microfilaments
• Microtubules

  form the mitotic spindle and maintain cell shape
• Centrosome


  Microtubule-organizing center
• Intermediate filaments


  fibrous proteins that hold organelles in place
• Microfilaments


  fibrous proteins; form the cellular cortex
• Lysosome 


  digests food
• Mitochondrion


  produces energy
• Parts of a cell

  Nucleus

  Peroxisome

  Endoplasmic Reticulum

  Vacuole

  Cytoskeleton

  Plasma membrane

  Lysosome

  Golgi apparatus

  Cytoplasm

  Mitochondrion
• Golgi apparatus


  modifies proteins