Some Twentieth-Century Authors Wrote That the Earliest Protocells Would Have

question 15

Multiple Choice

Some twentieth-century authors wrote that the earliest protocells would have to be autotrophs.This concept appears to be

• A) correct, since heterotrophs would depend upon eating autotrophs.
• B) correct, since life is not possible without ATP which is only available in living systems.
• C) correct, since glycolysis and fermentation only occur after oxygen is present from photosynthesis.
• D) incorrect, since the primordial soup could contain many preformed food molecules.
• E) incorrect, since glycolysis and fermentation require complex enzymes for catalytic reactions.

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