KINE 2011 Lecture Notes - Lecture 8: Osmosis, Membrane Transport, Nephron
17 Sep 2017
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Document Summary
Membrane carbohydrates serve as self-identity markers that enable cell-cell interactions. Carbohydrates-containing surface markers are also involved in tissue growth. *insulin can be made in a bacteria cell. Bind groups of cells into tissues and package them into organs. Most abundant in tissues that are subject to considerable stretching (skin, heart, uterus). Intracellular end they are connected to keratin filaments. On ecr end they are connected to the specialized protein filaments of the desmosome of the neighbouring cell: tight junctions: forming an impermeable cell (pulling two cells as close possible so nothing can go through them). Seal off the passageway between the two cells. Run the length between the contact space between the two cells and pulls them together, preventing fluid from going between the cells: gap junctions: communicating between two cells. In the middle of a gap junction is a hole. They form tunnels that connect the two cells.
