Which of the Following Statements Concerning the Role of Redox

question 51

Multiple Choice

Which of the following statements concerning the role of redox reactions in photosynthesis and cellular respiration is true?

• A) Photosynthesis involves only reductions, whereas respiration involves only oxidations.
• B) Photosynthesis involves only oxidations, whereas respiration involves only reductions.
• C) In photosynthesis, carbon dioxide is oxidized to form sugar, whereas in respiration, sugar is reduced to form carbon dioxide.
• D) In photosynthesis, carbon dioxide is reduced to form sugar, whereas in respiration, sugar is oxidized to form carbon dioxide.

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