Abiogenesis Flashcards
Requirements of Life
Low O2
Source of Energy
Chemical Blocks
Time
SEQ abiogenesis
Synthesis monomers
Monomer–» Macromolecules
Formation of protocells
Appearance of self replication
Formation of polymers
Monomers drip into hot sand/rocks (energy)
(-) ions bind monomers-»> peptide bonds
Proteins and other polymers
Formation of protocells
Lipids form vesicles
How are vesicles formed
Fats dripping into H20
Protocells are…
NOT living
NO heredity
Traits that protocells share with living cells
Osmosis
Homeostasis
Divide
RNA world hypothesis
RNA was produced
Began self replicating and evolving
Prebiotic Soup Theory (hypothesis)
Life formed near Earths surface
Spontaneous formation of monomers
Prebiotic Soup Theory Evidence
Miller Urey experiment
Iron Sulfur World Theory (hypothesis)
Iron forms @ cracks of ocean floor by hypothermal vents
Evidence for Iron Sulfur World
Hypothermal vents spewed hot H20, CO, and Fe.
Fe is catalyst that builds molecules
History of Early Life
Heterptrophic Anaerobic Bacteria
Photosynthetic Autotrophs
Aerobic Bacteria
Archaea
Endosymbiosis-» Eukarya
Photosynthetic Autotrophs
Mulicellularity
Land
Endosymbiosis Theory
Eukaryotic Cells formed from prokaryotic cells
Ancestor of Aerobic Eukarote
Bacteria that used O2 to produce E-»> Mitochondria
