BIOL 102 Lecture Notes - Lecture 7: Endomembrane System, Endoplasmic Reticulum, Golgi Apparatus
Document Summary
Middle to slow diffusion facilitated diffusion. Active transport - moves solutes against their concentrated gradient. Phagocytosis - bringing in really large things (e. g. food particles); fuse with lysosomes and either recycled or Endomembrane system - interconnected system of membrane enclosed organelles. Nucleolus - where ribosomal rna is being transcribed (dynamic structure) Nucleoplasm - fluid component of the nucleus. Pores of the nuclear membrane that allow regulated movement of material between the cytoplasm and nucleus. Translation takes place in cytoplasm + requires both mrna and ribosomal rna. Rrna and mrna musts be transported out of the nucleus after being transcribed. Nucleotides and enzymes (dna polymerase+rna polymerase) are importanted in the nucleus for dna replication and rna transcription. Ribosomal structures are labeled based on location in cytoplasm. Smooth er - region involved in various functions; synthesize steroids and lipids; detoxifies drugs wastes, and alcohols; stores calcium. Rough er - export and synthesis of proteins and glycoproteins.
