BIOL 1111 Study Guide - Midterm Guide: Volvox, Global Warming, Amoeba Proteus
7 Mar 2016
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Chapter 28 - protists (lecture notes + textbook notes) Some, but not all, of the descendents are from a common ancestor. Particularly to evolution of plants, fungi and animals. Membrane bound organelles such a as nucleus, mitochondria, plastids, etc. More structural and functional diversity than any other eukaryote group. Sar clade (largely defined by dna studies) 7 major groups within the 4 supergroups - based largely on morphology. Endosymbiosis one organism lives insides cell/cells of other (host) Primary (mitochondria & cyanobacteria) + secondary endosymbiosis (plastids - involving red + green algae [originally engulfed as eukaryotic cell into another]) Mitochondria is about the size of an average bacterium. Mitochondria have its own prokaryotes, like ribosomes, to manufacture its own proteins (inner one prokaryote-like) Mitochondria have double membranes, consistent with engulfing mechanism. Mitochondria have own genomes with genes coding for enzymes needed to replicate and transcribe own genomes. Mitochondria is closely related to -proteobacteria (endosymbiotic bacteria)
