Eukaryotic Cell Structure

  10/17/20101 Comparing the cell to a factory  organelle  specialized structure in a cell organelle  specialized structure in a cell  “little organ” cytoplasm  portion of the cell outside the nucleus Cytoplasm Nucleus Nucleus  contains DNA and instructions for proteinconstruction In the Nucleus Nuclear envelope  10/17/20102 In the Nucleus Nuclear envelope  2 membranes In the Nucleus Nuclear envelope  2 membranes  Pores allow material to movein and out(RNA and proteins) In the Nucleus chromatin In the Nucleus chromatin  granular material in the nucleus In the Nucleus chromatin  granular material in the nucleus  made up of protein and RNA  In the Nucleus chromasomes In the Nucleus chromasomes  threadlike structures in thenucleus In the Nucleus chromasomes  threadlike structures in thenucleus  contain genetic info passed on tonext generation In the Nucleus nucleolus  10/17/20103 In the Nucleus nucleolus  small dense region in the nucleus In the Nucleus nucleolus  small dense region in the nucleus  site of ribosome assembly  NucleusNucleus Ribosomes Ribosomes  small particles of RNA and protein found incytoplasm Ribosomes  small particles of RNA and protein found incytoplasm  proteins are assembled on ribosomes Ribosomes  small particles of RNA and protein found incytoplasm  proteins are assembled on ribosomes  ribosomesfollow coded instructions fromthe nucleus Ribosomes  10/17/20104 Ribosomes EndoplasmicReticulum Endoplasmic Reticulum  internal membrane system Endoplasmic Reticulum  internal membrane system  site for modifying or assembling:lipids for cell membranesproteinsother cell exports Endoplasmic Reticulum 2 types Endoplasmic Reticulum 2 types  Rough Endoplasmic Reticulum (E.R.) Endoplasmic Reticulum 2 types  Rough Endoplasmic Reticulum (E.R.)  Smooth Endoplasmic Reticulum (E.R.) Endoplasmic Reticulum Rough E.R. Endoplasmic Reticulum Rough E.R.  covered in ribosomes