NATS 1840 Chapter Notes - Chapter 5: Carbohydrate, Cell Nucleus, Prokaryote
8 Feb 2019
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Evolution of the organic molecules, biopolymers, and systems of chemical reactions needed to form the first cells. (1 billion years) Evolution from single celled prokaryotic bacteria to single celled eukaryotic creatures. Biodiversity: a measure of the variety of organisms present, species diversity, genetic diversity, ecological diversity, functional diversity, structural diversity, or cultural diversity. Gained as new species evolve and old species become extinct. Mineralized or petrified replicas of skeletons, bones, teeth, shells, leaves, and seeds, or impressions of such items. Reveal what the internal structure of organisms were that lived long ago. Chemical analysis of half lives of radioactive elements in rocks and fossils also give us information on the early life. Analysis of material in cores drilled out of buried ice. Comparisons of dna of past and current organisms. Polymers consist of a number of monomers, which are linked by chemical bonds. Consist of two or more monomers of simple sugars (cellulose)
