BIOL 1201 Lecture 15: CELL STRUCTURE
30 Nov 2016
School
Department
Course
Professor
Document Summary
Tight junctions, intermediary junctions, desmosomes: functional. Gap junctions: similar to plasmodesmata (cytoplasmic connections) Feature membrane bound organelles and membrane bound nucleus. Produce proteins for export from the cell, also new membrane. Metabolic activity, synthesis of lipids, carbohydrate metabolism, drug detox. Packaging and manufacturing center for material leaving cell. Free in the cytoplasm or loosely attached to the er. Not part of the general flow of membrane within cell. Cell movies: cell is able to: Membrane which is part of the er may later be found as part of the ----: more than just one. During exocytosis membrane from vesicles is added to the cell membrane. Which surface of the vesicular membrane becomes the outer surface of the cell membrane: interior of the vesicle becomes a part of the outer cell membrane. The membrane of the vesicle that is in contact with the cytoplasm will remain in contact with the cytoplasm.
