Difference between revisions of "CELL MEMBRANE-TRANSPORT"

Latest revision as of 02:30, 21 March 2023

SUMMARY

1. Exocytosis: vesicles containing material for export are targetted to the cell membrane via the v-SNARE/t-SNARE coupling mechanism. 2 pathways for secretion: non-constitutive pathway (proteins from the Golgi apparatus enter secretory granules to be processed) & constitutive pathway (proteins are transported directly to the cell membrane)

2. Endocytosis: via phagocytosis (cell-eating), pinocytosis (cell-drinking), clathrin-mediated endocytosis (occurs at membrane indentations where clathrin accumulates), caveolae-dependent uptake (occurs at membrane indentations where caveolin accumulates), non-clathrin/noncaveolae endocytosis

3. Small non-polar (O₂ & N₂) and uncharged polar-molecules (CO₂) diffuse freely across the membrane

4. Transport proteins

Reference(s)

Barrett, K.E., Barman, S.M., Brooks, H.L., X, J. and Ganong, W.F. (2019). Ganong’s review of medical physiology. 26th ed. New York: Mcgraw-Hill Education

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 ==Reference(s)==
-Barrett, K.E., Barman, S.M., Boitano, S., Brooks, H.L., Weitz, M., Brian Patrick Kearns, Ganong, W.F. and Mcgraw-Hill Education (Firm (2016). Ganong’s review of medical physiology. 25th ed. New York: Mcgraw Hill Education.
+Barrett, K.E., Barman, S.M., Brooks, H.L., X, J. and Ganong, W.F. (2019). Ganong’s review of medical physiology. 26th ed. New York: Mcgraw-Hill Education
-<br/>Hall, J.E. and Hall, M.E. (2020). Guyton And Hall Textbook Of Medical Physiology. 14th ed. S.L.: Elsevier - Health Science.
-<br/>West, J.B. and Luks, A.M. (2021). West’s Pulmonary Pathophysiology. Lippincott Williams & Wilkins.
 [[Category:Cell Membrane]]
 [[Category:Physiology]]