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Life - Coggle Diagram
Life
Metabolic origin
LUCA (Last Universal Common Ancestor): The most recent organism from which all life on Earth is descended, presumed to be a single-celled organism.
Prebiotic Soup: A hypothetical solution of organic molecules in the early oceans, thought to be the environment where the first life formed
Membrane Bubbles: Self-assembling lipid structures that may have been the precursors to cellular membranes, capable of containing molecules
Punctuated Equilibrium: A pattern of evolution where major new forms seem to appear suddenly, with long periods of stability in between.
The Metabolic Origins of Life hypothesis thinks that metabolism. Mainly chemosynthesis may have come before the forming of RNA.
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Isotopes: Atoms of the same element that have different numbers of neutrons; used in dating and studying past environments.
Stromatolites: Layered sedimentary structures formed by microbial mats, indicating early life.
NADH: A coenzyme that carries electrons during cellular respiration and other metabolic reactions, functioning as a reducing agent.
ADP: Adenosine diphosphate, a precursor to ATP.
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Reducing Power: The ability of a chemical substance to donate electrons, such as in redox reactions.
ATP: Adenosine triphosphate, the primary energy currency of cells
\Glycolysis: The metabolic pathway that breaks down glucose into pyruvate, producing ATP and NADH.
Fermentation: A metabolic process that recycles NADH to NAD+ in the absence of oxygen, leading to products like lactic acid or ethanol.
Prokaryote: A cell that lacks a membrane-bound nucleus and other complex organelles; includes bacteria and archaea.
Descent with modification: A term coined by Darwin, and the concept of shared common ancestry where traits are inherited but change over time, giving rise to taxonomic groupings through evolution.
Punctuated Equilibrium: A pattern of evolution where major new forms seem to appear suddenly, with long periods of stability in between.
RNA World: The theory that RNA was the primary genetic material and catalyst in early life before DNA and proteins.
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Chemosynthesis: The process by which some organisms use energy from inorganic chemical reactions to produce organic molecules.
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Carbon Fixation: The process by which inorganic carbon (CO2) is converted into organic compounds such as sugars.
