BIOL107 Lecture Notes - Lecture 6: Plastid, Endoplasmic Reticulum, Mitochondrial Matrix
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Internal structures of eukaryotes: generally have an extensive system of membrane bound organelles separate from the plasma membrane, organelles not present in prokaryotes, organelle: any membrane bound structure in a eukaryotic cell, cytoplasm: interior of eukaryote or prokaryote cell, cytosol: fluid portion of the cytoplasm (without structures or organelles, ref fig. 101 (plant cell: very generalized figures, i. e. : show flagella on animal cell though not all with obtain this property, shows all possible structures, cell"s endomembrane system, plasma membrane, nuclear envelope, endoplasmic reticulum (er, golgi apparatus, lysosomes, vesicles, vacuole, all are related by physical continuity or vesicles are able to transfer from one to another, organelles outside of endomembrane system, peroxisomes/microbodies. Chromoplasts: store pigments: endosymbiant hypothesis: mitochondria and chloroplasts arose in eukaryotes as the result of an endosymbiotic event (endosymbiosis, endosymbiosis: mutually beneficial relationship derived from one cell living inside another, mitochondria are descended from an ancient bacteria closely related to alpha proteobacteria.