5.     During photosynthesis, plants release oxygen. Where does this oxygen come from?a)     From CO2 after carbon fixation by Rubisco.b)     From the Calvin cyclec)     From waterd)     From chlorophyll 6.     The CO2 released when we exhale is produced by:a)     Glycolysis (glucose to pyruvate)b)     The respiratory chain (electron transport chain)c)     By pyruvate decarboxylation and by the TCA cycle.d)     Fermentatione)     All of the above

Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter8: Photosynthesis
Section: Chapter Questions
Problem 19RQ: Which statement correctly describes carbon fixation? the conversion of CO2 into an organic compound...
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5.     During photosynthesis, plants release oxygen. Where does this oxygen come from?
a)     From CO2 after carbon fixation by Rubisco.
b)     From the Calvin cycle
c)     From water
d)     From chlorophyll

6.     The CO2 released when we exhale is produced by:
a)     Glycolysis (glucose to pyruvate)
b)     The respiratory chain (electron transport chain)
c)     By pyruvate decarboxylation and by the TCA cycle.
d)     Fermentation
e)     All of the above

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