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Cards In This Set
| Front | Back |
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The universe began with the big bang theory about
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13.7 BYA
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Our solar system began about
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4.6 BYA
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The Earth is ___ _____ years old.
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4.55 Billion
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4 BYA the Earth enough for
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Outer layers to solidify & oceans to form
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Life Emerged.....
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4-3.5 BYA
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___________ &_____ _____ were produced prior to the existence of cells
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Nucleotides, Amino Acids
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Nucleotides and amino acids became polymerized to form?
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DNA, RNA, & Proteins
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Polymers became enclosed in?
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Membranes
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Polymers enclosed in membranes acquired
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Cellular properties
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Stage 1: origin of organic molecules
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conditions on primitive Earth may have been more conducive to spontaneous formation of organic molecules
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Prebiotic or abiotic synthesis
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Little free oxygen gas& formed prebiotic soup
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Reducing atmosphere hypothesis
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-based on geological data
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Atmosphere rich in?
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Water vapor, H2, CH4, NH3, and little O2
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Chamber stimulates?
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Atmosphere and bolts of lightning
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Atmosphere hypothesis formed?
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Precursors, amino acids, sugars, and nitrogenous bases
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