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Exam I - Coggle Diagram
Exam I
Origins
Evidence
flowering plants: 150mya
first land plants: before 600mya
first algae: 1.6 bya
Plants
multicellular organisms
ATP (energy)
DNA and RNA (genetic codes)
Machinery for transcribing DNA to RNA
Machinery to translate RNA to proteins (structure and regulation)
Isotopes: Carbon
C12 is 99% of the type of carbon in plants
C13 is mostly other 1% along with a little of C14
Isotopes indicate presence of photosynthesis
Early Metabolism
Chemosynthesis
Early life relied on chemosynthesis
Modern biology relies on photosynthesis
Earliest organisms did not use oxygen in metabolism
Energy from inorganic minerals were used for metabolism