Domanda del libro di testo
_________ is the amount of oxygen required by aerobic organisms to fully metabolize organic waste in water.
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12. Microbial Metabolism
Introduction to Aerobic Cellular Respiration
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Anaerobic bacteria may use ________ as the final electron acceptor during anaerobic respiration.
A
oxygen (O_2)
B
glucose (C_6H_{12}O_6)
C
carbon dioxide (CO_2)
D
nitrate (NO_3^-)
Guida verificata passo dopo passo1
Understand that in anaerobic respiration, bacteria use a molecule other than oxygen as the final electron acceptor in their electron transport chain.
Recall that oxygen (O_2) is the final electron acceptor in aerobic respiration, so it is not used in anaerobic respiration.
Recognize that glucose (C_6H_{12}O_6) is a substrate (electron donor) rather than an electron acceptor.
Identify common alternative electron acceptors used by anaerobic bacteria, such as nitrate (NO_3^-), sulfate (SO_4^{2-}), or carbon dioxide (CO_2).
Conclude that nitrate (NO_3^-) is a typical final electron acceptor in anaerobic respiration, making it the correct choice.
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