BIOL 2020 Lecture Notes - Lecture 2: Atp Hydrolysis, Exergonic Reaction, Endergonic Reaction
31 Aug 2016
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Document Summary
Divide (only way to get more mitochondria - fission) Movement mediated by motor proteins (like kinesin that walk along microtubules) High concentration of protein porin - forms a large channel (through lipid bilayer) allowing molecules from the cytosol access to the intermembrane space (ex. F1 particles - part of atp synthase. High concentration of cardiolipin = unusual because it"s a double phospholipid 4 fatty acid chains (aka diphosphatidulglycerol) Insulates the membrane - makes the membrane impermeable insulates. Stabilizes the activity of protein in the etc. Cristae - enfold throughout the middle of the mitochondria; distinct membrane system, sometimes attached to the inner membrane. Site of the tricarboxylic acid (tca) cycle or kreb"s cycle. Contains mitochondrial genome and gene transcription/translation machinery. Mitochondria have all the machinery needed to transcribe/translate their own proteins. Endosymbiont theory - larger cell engulfed a smaller cell origin of double membrane and uniqueness of ribosome role in mitochondria + evolution of circular dna.
