Which of these statements concerning the differences between cellular respiration and photosynthesis is true?

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    During cell respiration, water is oxidized into oxygen and H+ ions; during photosynthesis, oxygen and H+ ions are reduced to water.
    During cellular respiration, electron carriers (i.e., NADH and FADH2) provide electrons for the electron transport chains; during photosynthesis, an electron carrier (i.e., NADP) carries electrons away from the ETC.
    During the Krebs cycle, sugars are reduced to produce CO2; during the Calvin cycle, CO2 is oxidized into sugars.
    During the Krebs cycle, ATP is consumed; during the Calvin cycle, ATP is produced.
asked May 30, 2013 in Biology by anonymous
    

1 Answer

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During cellular respiration, electron carriers (i.e., NADH and FADH2) provide electrons for the electron transport chains; during photosynthesis, an electron carrier (i.e., NADP) carries electrons away from the ETC.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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