Plasma membrane Extracellular medium N Endocytic vesicle Lysosome Perinuclear space Nuclear envelope Transport vesicles Early endosome Late- endosome Golgl- complex Secretory vesicles Smooth endoplasmlc Ribosom reticulum Rough reticulum Peroxisomes Cytosol Figure 12-1 Cellular Structures Discussed in This Chapter. The interior of the endoplasmic reticulum,in turn,is linked to the This chapter focuses on the endoplasmic reticulum,the Golgi complex, interiors of the Golgi complex,endosomes.and lysosomes by transpo endosomes,lysosomes,and peroxisomes.Also relevant to the vesicles that shuttle from organelle to organelle.Together,the discussion are the nuclear envelope and plasma membrane.The surrounding membranes and internal spaces of these structures de perinuclear space between the two membranes of the nuclear the endomembrane system of the eukaryotic cell:the remaining envelope is continuous with the interior of the endoplasmic reticulum portion of the cytoplasm is called the cytosol. 主讲：汤 华