BIOL 1115 Study Guide - Midterm Guide: Gram-Negative Bacteria, Homeostasis, Chitin
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Phylogeny: the evolutionary history of a species or group of species. Major groups: proteobacteria (gram negative), chlamydias, spirochetes, cyanobacteria, 3 main shapes: cocci, bacilli, spirilli/ some photosynthetic, can form colonies: domain archaea, a unicellular prokaryotic organism that is capable of living in extreme conditions. Methanogens: organisms that produce methane as a waste product of the way they obtain energy; anaerobic, poisoned by o2; use co2 to oxidise h2. Extremophiles: organisms that live in extreme environments: extreme halophiles: live in highly saline (salty) environments, extreme thermophiles: thrive in very hot environments, domain eukarya, eukaryotic cells have membrane-bound organelles and a defined nucleus. Anthocerphyta, liverworts-hepatophyta), anchored by rhizoids-long tubular single cells, or cell filaments seed: embryo packaged with a supply of nutrients inside a protective coat; seeded plants are gymnosperms (naked seeds)-seeds not enclosed in chambers; coniferophyta, 5 groups of eukaryotes: excavata (i. e. giarda), chromalveolata (i. e. plasmodium-