9 universit dottawa university of ottawa bio1130

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Unformatted text preview: er and organic compounds Boiling water BIO1130 Organismal Biology Liquid water in trap Figure 3.9 Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 21 10:22 AM Page 7 Hadean eon Chemical evolution Origins of organics (monomer) Prebiotic soups Hydrothermal vents Interstellar organics Figure 3.10 BIO1130 Organismal Biology 22 Université d’Ottawa / University of Ottawa 10:22 AM Chemical evolution Biopolymers (macromolecules) Proteins Nucleic acids Carbohydrate Lipids BIO1130 Organismal Biology 23 Université d’Ottawa / University of Ottawa Central Dogma of Biology 2. 1. DNA 10:22 AM 1. 2. 3. Replication Transcription Translation 3. RNA BIO1130 Organismal Biology Protein Figure 3.14 Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 24 10:22 AM Page 8 Hadean eon Biotic chemistry (Polymers) Panspermia The RNA world – Ribozymes Proteins first Clays © NASA BIO1130 Organismal Biology 25 Université d’Ottawa / University of Ottawa 10:22 AM Evolution of information flow from an RNA world RNA RNA DNA Protein RNA Protein BIO1130 Organismal Biology Figure 3.16 26 Université d’Ottawa / University of Ottawa 10:22 AM Biotic chemistry (Polymers) Panspermia The RNA world – Ribozymes Proteins first Clays Figure 3.12 BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 27 10:22 AM Page 9 Hadean eon Bubble hypothesis for cells Microsphere Micelles (Liposomes) Protobionts (Protocells) BIO1130 Organismal Biology Figure 3.13 Université d’Ottawa / University of Ottawa 28 10:22 AM Micelle replication BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 29 10:22 AM Biological evolution: Protobionts BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 30 10:22 AM Page 10 Hadean eon Biological evolution: Protobionts Glucose-phosphate Glucose-phosphate Phosphatase Starch Amylase Phosphate Maltose Maltose BIO1130 Organismal Biology 31 Université d’Ottawa / University of Ottawa 10:22 AM What is life and emergence? Organicists (1930) – vital force replaced by genetic program and the importance of emergence. Emergence - More than the sum of the parts Water Sodium chloride BIO1130 Organismal Biology 32 Université d’Ottawa / University of Ottawa 10:22 AM What is life and emergence? Emergence - More than the sum of the parts Myoglobin Hemoglobin BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 33 10:22 AM Page 11 Hadean eon What is life? (Figure 2.2) Self replicating - Life from life with a genetic program Metabolizing - Capturing and releasing energy Self regulating - A delicate balance Reproduce – life from life Evolving - Adapting and changing Responding - Sensing and interacting with the surrounding world Growth – increase in size BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 34 10:22 AM Page 12...
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This note was uploaded on 02/04/2014 for the course BIO 1130 taught by Professor Fenwick during the Fall '08 term at University of Ottawa.

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