Biology 2581B Study Guide - Quiz Guide: Nuclear Pore, Nuclear Membrane, Cell Membrane
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3 Jun 2020
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Cell consists of plasma membrane and cytoplasm, cytoplasm consists of organelles and cytosol. Eukaryote cells evolved from prokaryote cells by endosymbiosis of different organisms. Nuclear membrane and er membrane are the same as the plasma membrane from a eukaryote. The inner mitochondrial membrane is the same as prokaryote membranes. The outer mitochondrial membrane is the same as eukaryote membranes. Gated transport (from nucleus to cytosol and other way around) = transport through a relatively large nuclear pore. Transmembrane transport = transport via protein translocators in membrane (bilayer) Signal sequence = amino acid sequences, some sort of zipcode that brings it to a specific place. Npc = disordered region hinders diffusion, the hinder depends on size, it functions like a basketball net, smaller molecules can pass through easier. <60 000 dalton: slow diffusion and active transport. Average protein has 50 000 dalton, one histone 14 000 (but in large amounts they need active transport)