FOOD PROCESSING AND PRESERVATION
FERMENTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to deliver hydrogen ions to the electron transport chain
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to pick up electrons at the end of the electron transport chain
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to provide oxygen for the production of carbon dioxide
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to give a source of energy to the Krebs cycle
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Detailed explanation-1: -Explanation: Oxygen is the final electron acceptor in the electron transport chain, which allows for oxidative phosphorylation. Without oxygen, the electrons will be backed up, eventually causing the electron transport chain to halt.
Detailed explanation-2: -Oxygen is the terminal electron acceptor in the mitochondrial electron transport chain and therefore is required for the generation of energy through oxidative phosphorylation.
Detailed explanation-3: -Oxygen sits at the end of the electron transport chain, where it accepts electrons and picks up protons to form water.
Detailed explanation-4: -Oxygen has a high electronegativity; thus, oxygen’s high affinity for electrons makes it an ideal acceptor for low-energy electrons.