MICR 2420 Lecture Notes - Lecture 6: Abiogenesis, Nuclear Membrane, Cell Envelope

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All living things are made up of 1 more cells. There are 3 domains: eukarya, bacteria, archaea. There are two kingdoms of unicellular organisms: plants, animals. There is one kingdom that is made of both unicellular and multicellular: protists (including algae) Each living cell has the capacity to perform certain basic functions that are characteristic of all living forms. A cell can live and perform all its functions because of it(cid:859)s o(cid:396)ga(cid:374)elles. 8 life functions: respiration, regulation, reproduction, excretion, growth, nutrition, transport, synthesis. All life on earth is made of stardust; the remnants of supernovae. The origin of life required fundamental elements that make up organic molecules. Life requires the continual input of energy, and temperature range that permits liquid water. E a(cid:374)d (cid:374)u(cid:272)lea(cid:396) e(cid:374)(cid:448)elope of euka(cid:396)(cid:455)otes (cid:373)a(cid:455) ha(cid:448)e e(cid:448)ol(cid:448)ed f(cid:396)o(cid:373) i(cid:374)foldi(cid:374)g(cid:859)s of the plas(cid:373)a membrane in a primordial cell. Built the first compound microscope (30 x power) Observed and drew nematoids, mites and mold sporangia.

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