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If an organism could use sulphate as an electron acceptor, would it have more or less...

If an organism could use sulphate as an electron acceptor, would it have more or less energy? Why?

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Anaerobic respiration is the process by which cells that do not breathe oxygen liberate energy from fuel to power their life functions. Molecular oxygen is the most efficient electron acceptor for respiration due to its nucleus high affinity for electrons. Some organisms use other oxidisers to perform respiration without oxygen.

If an organism use sulphate as an electron acceptor , it have less energy . These organism use an electron transport chain to generate ATP from their fuel & extract less energy because their electron acceptors are weaker.  

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