Biology 1002B Lecture Notes - Lecture 7: Ribosome, Cell Membrane, Cystic Fibrosis
15 Apr 2017
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There are membrane vesicles that connect the er to the. Golgi and the golgi to the plasma membrane. If you are a protein and your final destination is the plasma membrane or if you leave the cell, then you go through this secretory pathway. You"re synthesized on er bound ribosomes and the protein ends up in these vesicles and goes all the way to the plasma membrane. This is how lipid gets to the plasma membrane as well, lipids have half-lives too. Temperature has a profound impact on our fluids. Channelrodopsin sits in the membrane, absorbs a photon of light and changes conformation, so the fluidity of the membrane allows them to do this. If the membrane fluid was like butter, it wouldn"t be able to change conformation. Lower the growth temperature, the more amount of desaturase transcript. No enzymes to reverse the reaction and get rid of double bonds. No such thing as ribosomes stuck to the er.
