BIOL240 Lecture 2: Topic 2

• School: University of Waterloo
• Department: Biology
• Course: BIOL240
• Professor: Josh Neufeld

Document Summary

(cid:373) long: ve(cid:396)(cid:455) fe(cid:449) (cid:862)la(cid:396)ge(cid:863) p(cid:396)oka(cid:396)(cid:455)otes, 1 micrometer is typical bacteria size (remember this!) 1/1000th mm: eukaryotic cells range from 10 (cid:373) to > 200 (cid:373, minimum size is due to minimum space requirement for genome, protein, ribosomes, exceptions to general size of bacterial cells. Ex) thiomargarota namibiensis up to 700 (cid:373) in diameter! Epulopiscium fishelsoni 200-700 (cid:373) x 80 (cid:373) (cid:862)guest at a (cid:271)a(cid:374)(cid:395)uet of fish(cid:863) from the gut oftropical surgeon fish. Not cultured (no real pure culture yet), only know of because of ribosomal rna (16s rrna seq) Related to clostridium in comparison to euk paramecium = 75 (cid:373): comparative sizes of prokaryotes: Epulopiscium: membranes have many invaginations in them so a lot more effective. Sa from the ripples: a lot of distance to transport therefore many copies of genomes (stars) are placed all over the cell for quick access to dna no matter where in the cell. In the gut of fish!= nutrient rich environment.