BIOL 111 Lecture Notes - Lecture 3: Atp Synthase, Nuclear Membrane, Chemotroph

• School: McGill University
• Department: Biology
• Course: BIOL 111
• Professor: Andrew Hendry

Document Summary

We are large compared to the vast majority of creatures. H atom is 1 angstrom (0. 1nm) we are 1m, scale up to 10m. Vision greatly limits our observation and perception of living organisms. We cannot see the things that exist, can just barely see others. Smallest thing we can see is ~30 m. Van leeuwenhoek drew bacteria he scraped out of his mouth no one cared. Pasteur created germ theory, people finally cared about tiny things. Dna, circular genome, ribosomes, universal proteins (atp synthase) Luca: a chemoautotrophic prokaryote, all living organisms have the same stereoisomers. Bacteria acetate: peptidoglycan, ester linked lipids, non histone dna-binding proteins. Archaea methane: protein cell wall, ether linked lipids, histones. Yes -spin like, but molecularly different than bacteria. Yes but wave back and forth, distinct composition. Transduction through viruses, from environment, or direct contact with other cell (conjugation) Sexual reproduction fusion of haploid genomes to diploid. Glycerol +branched fatty acids from isoprene subunits via ether linkages.