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Unformatted text preview: Large molecules molecules • Phagosome:
– Fusion with Fusion lysosome lysosome • Phagocytes Phagocytes
Figure 5-20 E. Endocytosis & Exocytosis: E. Endocytosis Exocytosis VacuoleTransport VacuoleTransport
• ENDOCYTOSIS: ENDOCYTOSIS:
– Pinocytosis: non-selective; small particles – Phagocytosis: non-selective; large selective; particles particles – Receptor mediated Endocytosis: Receptor Endocytosis
• specific substrate (ligand) only 11 1/31/2010 Endocytosis & Exocytosis: Exocytosis
Transport & Membrane Cycling Transport Figure 5-21: 21: ReceptorReceptor mediated mediated endocytosis endocytosis and exocytosis and exocytosis F. Transepithelial & F. Transepithelial Transcytosis Transcytosis
1. Cross two membranes
a) Apical (lumenal side) b) Basolateral (ECF side) 2. Absorption: lumen to ECF 3. Secretion: ECF to ECF lumen/surface lumen/surface 12...
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This document was uploaded on 03/18/2010.
- Spring '09