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Home Q & A Board Biology-Related Homework Help General Biology
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Dugg Dugg
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6 years ago
How does carbon fixation differ between C3 and C4 plants?
A) C4 plants undergo carbon fixation by carboxylation of a four-carbon substrate (oxaloacetate), while in C3 plants, a three-carbon compound (phosphoglycerate) is carboxylated.
B) Both C3 and C4 plants involve carboxylation of ribulose-1,5-bisphosphate by rubisco; but in C3, the first stable intermediate is 3-phosphoglycerate, and in C4, it is oxaloacetate.
C) C3 plants don't undergo photorespiration, but C4 plants do.
D) Rubisco is the primary enzyme that catalyzes carbon fixation in C3 plants, and phosphoenolpyruvate carboxylase can catalyze carbon fixation in C4 plants.
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Biological Science, Canadian Edition

Biological Science, Canadian Edition


Edition: 2nd
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hayley2007hayley2007
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