Copyright © 2005 Pearson Prentice Hall, Inc.
Intracellular Compartments and
Transport
•Membrane Enclosed Organelles
•Protein Sorting
•Vesicular Transport
•Secretory Pathways
•Endocytic Pathways
Copyright © 2005 Pearson Prentice Hall, Inc.
Membrane Enclosed Organelles
• Eukaryotes’ Basic Set• Evolution
Copyright © 2005 Pearson Prentice Hall, Inc.
Membrane Enclosed Organelles Eukaryotes’ Basic
Set-Diagram
Copyright © 2005 Pearson Prentice Hall, Inc.
Membrane Enclosed Organelles Eukaryotes’ Basic
Set-List
Copyright © 2005 Pearson Prentice Hall, Inc.
Membrane Enclosed Organelles Eukaryotes’ Basic
Set-Electron Micrograph
Copyright © 2005 Pearson Prentice Hall, Inc.
Membrane Enclosed Organelles Eukaryotes’ Basic
Set- Relative Volume &
Abundance
Copyright © 2005 Pearson Prentice Hall, Inc.
Protein Sorting
• Three mechanisms• Signal Sequences Direct Proteins to
the Correct Compartment• Enter Nucleus through Nuclear Pores• Unfold to Enter Mito & Chloro• Enter ER during Synthesis• Soluble Released into ER lumen• Transmembrane Arrangement by Start
& Stop Signals
Copyright © 2005 Pearson Prentice Hall, Inc.
Protein Sorting Signal Sequences Direct Proteins to
the Correct Compartment
Copyright © 2005 Pearson Prentice Hall, Inc.
Protein SortingUnfold to Enter Mitochondrion & Chloroplast
Copyright © 2005 Pearson Prentice Hall, Inc.
Protein Sorting Transmembrane Arrangement by
Start & Stop Signals