BIOL 2900 Study Guide - Midterm Guide: Carl Linnaeus, Electron Microscope, Non-Cellular Life
7 Jan 2019
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System for naming plants and animals and grouping similar organisms together. Linnaeus grouped all organisms into either: animal kingdom, plant kingdom. Another scientist named leeuwenhoek made 6 basic groups (a bat ate food and then. Pooped small) **he also made microscopes*: algae, bacteria, archaea did not describe virus too small to be seen w/out electron microscope, fungi, protozoa, small multicellular animals. Eukaryotic cells of fungi, algae, and some protozoa have cell walls = no glycocalyce. Acellular (not composed of cells) obligatory parasites composed of small amounts of genetic material dna/rna surrounded by protein coat. Bacteria + arachaea = prokaryotic their cells lack nuclei (their gene has no membrane) Cytosol of prokaryote: contain cells dna in region called nucleoid. Live in pairs, singles, chains or clusters in a habitat that is sufficiently moist. Bacteria degrade dead plants and animals releasing chemicals to be used by new generations of organisms: without microbial recyclers world would be buried under so many corpses.
