Multiple Choice
In the electron transport chain (ETC), what is the final electron acceptor?
6. Chemical Quantities & Aqueous Reactions
Redox Reactions
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In what way is photosynthesis considered a redox process?
A
Oxygen is reduced to water, and glucose is oxidized to carbon dioxide.
B
Water is reduced to glucose, and carbon dioxide is oxidized to oxygen.
C
Glucose is oxidized to carbon dioxide, and oxygen is reduced to water.
D
Carbon dioxide is reduced to glucose, and water is oxidized to oxygen.
Verified step by step guidance1
Understand that a redox process involves the transfer of electrons between two substances, where one substance is oxidized (loses electrons) and the other is reduced (gains electrons).
Identify the substances involved in photosynthesis: carbon dioxide (CO2), water (H2O), glucose (C6H12O6), and oxygen (O2).
Recognize that in photosynthesis, carbon dioxide (CO2) is reduced to form glucose (C6H12O6). This means carbon dioxide gains electrons during the process.
Understand that water (H2O) is oxidized to form oxygen (O2) in photosynthesis. This means water loses electrons during the process.
Conclude that photosynthesis is a redox process where carbon dioxide is reduced to glucose, and water is oxidized to oxygen, which aligns with the correct answer provided.
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