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Question
The extra energy obtained from aerobic respiration played what role in the evolution of early life?
Options
It restarted abiotic synthesis of organic molecules
It enabled cells to abandon membranes
It supported greater cellular complexity
It reversed the oxidising conditions of the atmosphere
MCQ
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Solution
Since aerobic respiration is far more energy-efficient than anaerobic respiration, cells gained more usable energy. This greater energy supported greater cellular complexity, paving the way for more advanced cell organisation.
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