ECON 2030 Lecture : Week 2 Post
Document Summary
How did life begin: people thought that new living things appeared all the time (spontaneous generation, 1609. Mid-1800s louis pasteur: life is spontaneously generated, if life is spontaneously generated, it at least requires the. Hypothesis: air from inside the flask contains living organisms rather than the substance itself. Rna is used to store genetic information in non-living things (viruses-hiv and influenza); also used to catalyze chemical rxns. Ribozymes: rna molecules that can catalyze chemical rxns, especially those involved in synthesis and processing of rna itself: conclusion: earliest cells used rna to store info (hypothesis, ribozymes to catalyze rxns. Just add fat and protein to water then shake . Proteins: can be either hydrophobic or hydrophilic depending on the makeup of amino acids. Water + elements + energy prebiotic soup: amino acids, nucleotides, lipids, sugars . Microsphere like protocells surrounding more complex organic molecules rna, carbohydrates, proteins, lipids first prokaryotes.
