BIOL 2020 Lecture Notes - Lecture 6: Glycerophospholipid, Signal Transduction, Glycolipid
Document Summary
Biol 2020 lecture 6 january 18, 2019 macromolecules and membrane structure and function. Membranes: 5-10 nm think, functions, boundary and permeability barrier, sites for specific proteins, regulate solute transport, signal transduction, cell-to-cell interactions. The microtubules that are part of the cytoskeleton are 25 nm in diameter, which is 2. 5 times as wide as the membrane. Membrane compartmentalize the cell and separates activity and reactions. There are a lot of proteins in the membrane. Depending on the proteins on the membranes, they can have different functions. All of the machinery needed for atp synthesis is found on the inner membrane. Proteins regulate transport that allow somethings to pass. Signal transduction refers to receptor molecules in the cell membrane that pick up signal from the environment then transmit the signal to the inside of the cell. All the attachment take place with the cell membrane. A lipid with a carbohydrate attached: sterols (ex. By weight, protein component would outweigh the lipid component.