BIOL 151 Study Guide - Quiz Guide: Transfer Rna, Gnetophyta, Microbiological Culture
Document Summary
Chemolithoautotrophic (ammonia, nitrogen, carbon); likely producer of vitamin b12. Gram positive, source of many antibiotics, decompose things, high g+c. Gram negative, ovoid shaped, infect eukaryotes to grow. Non-moving (fixed), autotrophic organisms, starch storage in plastids, chlorophyll containing. Multi- or unicellular, contain chloroplasts, rely on water for reproduction. Marine microalgae, cell wall of cellulose, division via furrowing, unicellular or filaments. Stoneworts; freshwater, all land plants descendent of this! Usually unicellular or filaments, division via cell plate formation. Lacking lignin in cell walls (no vascular tissue), gametophyte-dominant. Cell walls contain lignin (vascular tissue exists), sporophyte-dominant, lacking seeds . Lycophytes, club mosses; highly flammable spores, microphylls (leaves with only 1 vein) Whisk ferns; no roots rhizoids, no obvious leaves, homosporous, photosynthetic stems. Ferns; mostly homosporous, spores form on true leaves, no strobilus. Horsetails; true stems, roots and leaves; silica in cell walls, homosporous. Seeds either form on the surface of leaves or in cones, naked seeds .
