BIOL 257 Study Guide - Comprehensive Midterm Guide: Lipid Bilayer, Glycoprotein, Virtual Image
Document Summary
First seen in primitive microscope by robert hooke. Better lenses- more precise images/smaller things anton van leeuwenhoek. Visible light microscopes: microscopes that use visible light, described by their field four types. 100,000 x less than red visible light. Ancient belief: disease/spoilage spontaneous generation: things left out go bad. Maggots and spoilage come from nothing: also, rats, mushrooms other form of life. Eve(cid:374) afte(cid:396) dis(cid:272)ove(cid:396)y of (cid:862)a(cid:374)i(cid:373)al(cid:272)ules(cid:863) (cid:1006) (cid:272)o(cid:373)peti(cid:374)g (cid:271)eliefs: abiogenesis, biogenesis. Not some spontaneous generation factor in air that gets destroyed by heat. The discovery of spores and sterilization: louis pasteur: most heated solutions no contamination if no direct air exposure, john tyndall: some microbe has very high heat resistance- difficult to destroy. Heat sometimes not enough: ferdinand cohn: heat resistance due to spores better sterilization. The development of aseptic technique: from ancient times vapors from dead/decaying cause disease, mid-(cid:1005)8(cid:1004)(cid:1004)"s maybe microorganism cause disease. Oliver wendell holmes: mothers who give birth at home less infections than hospital.
