Cellular Respiration
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Stevek113
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BIOLOGY
Cellular Biology
Cellular Respiration
Cellular respiration powers life by converting food into energy using oxygen and mitochondria
7 Feb 2026
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What is the primary role of oxygen in cellular respiration?
Oxygen acts as the final electron acceptor in the electron transport chain.
Oxygen directly breaks down glucose molecules to release energy.
Oxygen is only used to remove waste products and does not participate in energy production.
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Bonbo
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BIOLOGY
Cellular Respiration
Electron Transport Chain
How cells turn electrons into energy with a molecular proton pump
5 Feb 2026
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What is the primary purpose of the proton gradient created by the electron transport chain?
To directly produce glucose molecules
To transport oxygen across the mitochondrial membrane
To drive ATP synthesis by ATP synthase
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BIOLOGY
Cellular Biology
Cellular Respiration
Cellular respiration efficiently converts nutrients into usable energy through oxygen-driven processes
3 Feb 2026
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Which stage of cellular respiration directly produces the majority of ATP molecules?
Glycolysis
Citric acid cycle
Oxidative phosphorylation
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Stevex
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BIOLOGY
Cellular Respiration
Electron Transport Chain
How the Electron Transport Chain Powers Life Through Proton Gradients and Redox Reactions
24 Jan 2026
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What role does the proton gradient created by the electron transport chain play in ATP synthesis?
It directly transfers electrons to ADP to form ATP.
It stores ATP molecules until the cell needs energy.
It provides the energy needed for ATP synthase to convert ADP and inorganic phosphate into ATP.
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BIOLOGY
Cell Biology
Cellular Respiration
Inside every cell, a complex chemical dance powers life through cellular respiration
2 Nov 2025
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What is the final electron acceptor in the electron transport chain during cellular respiration?
Oxygen
Carbon dioxide
Glucose
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