Chemogenetic Theory of Origin of Life | Oparin Haldane Coacervates | NEET Class 12 | Neela Bakore

◀ PREVIOUS VIDEO (1/22): Theories of Origin of Life    • Theories of Origin of Life | Abiogenesis P...   ▶ CURRENT VIDEO (2/22): Chemogenetic Theory    • Chemogenetic Theory of Origin of Life | Op...   ▶ NEXT VIDEO (3/22): Urey & Miller Experiment    • Urey & Miller Experiment | Proof of Chemic...   🔗 Full Playlist:    • Playlist   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ From simple chemicals to the first living cell — the Chemogenetic Theory explains it! This video covers Oparin and Haldane's hypothesis and the concept of coacervates in detail. 📌 Topics Covered: • Oparin (1924) and Haldane (1929) — Chemical Evolution hypothesis • Primitive Earth: reducing atmosphere (CH₄, NH₃, H₂, H₂O vapour; no free O₂) • Abiotic synthesis of organic monomers (amino acids, sugars, nucleotides) • Polymerisation of monomers into macromolecules • Coacervates — aggregates of macromolecules; proto-cell precursors • Proteinoid microspheres (Fox) • How the first cell membrane may have formed • NEET MCQ patterns on chemogenetic theory ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Transcript with Timestamp 0:07 Chemogenetic theory = modern theory of evolution 0:28 Three parts: Chemogeny, Biogeny, Coenogeny 0:58 Chemogeny = chemical evolution 1:06 Biogeny = formation of first self-replicating organic molecules 1:19 Coenogeny = first life form formation and its evolution 1:38 Chemical evolution explained by Oparin and Haldane 2:08 Conditions: high temp (~800°C), energy = UV rays + lightning 2:34 Torrential rains → broth formation 3:23 Atmosphere gases: ammonia, methane, CO2, hydrogen, helium, water vapor — no O2 3:47 Atmosphere was reducing — all reactions were anaerobic 4:31 Simple compounds formed: sugars, aldehydes, nitrogen bases (purines & pyrimidines), fatty acids 6:22 Molecules aggregated → complex biomolecules formed 6:49 DNA → RNA → proteins (central dogma) must have occurred 7:29 First aggregates of biomolecules called Protobionts — did not reproduce 8:27 Next life form: Eobionts / Coacervates — reproduced by budding 9:16 First organisms: Chemo-heterotrophs (used chemicals for energy) 9:52 Then Chemo-phototrophs (light energy + chemicals) 10:12 Then Anaerobic Chemoautotrophs — anoxygenic photosynthesis (sulfur bacteria, iron bacteria) 11:01 Then Aerobic organisms — developed chlorophyll-like pigments — released oxygen 11:41 First aerobic organism believed to be Cyanobacteria ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Amazon Brand Store at https://www.amazon.in/neelabakoretuto.... Complete Study Notes (11th and 12th) are available at: https://amzn.to/3K4Li7k Complete Study Notes for 12th are available at: https://amzn.to/3PRhWjm Complete Study Notes for 11th are available at: https://amzn.to/4uw1hBa The study notes for this unit Genetics & Evolution are available at https://amzn.to/2Sh27jW The study notes for other units: - Diversity in Living World - https://amzn.to/3r8qkyH Structural Organisation in Plants and Animals - https://amzn.to/3r2cxmZ Cell: Structure and Functions - https://amzn.to/2GPagcm Plant Physiology - http://amzn.to/2EZR5HS Human Physiology - http://amzn.to/2DA46ea Reproduction - https://amzn.to/2wu43eS Biotechnology - http://amzn.to/2EZyqf9 Biology in Human Welfare https://amzn.to/4dPRZd7 Ecology https://amzn.to/3RwuOvF ____________________________________________ For business inquiries: [email protected] ___________________________________________ #ChemogeneticTheory #OparinHaldane #Coacervates #ChemicalEvolution #EvolutionNEET #Class12Biology #neelabakoretutorials