alleryStart learning →Why do C4 plants lack photorespiration?
ACO2 rises at the enzyme
BThey lack chloroplasts
CThey lack stomata
DThey have no RuBisCO
Answer & Solution
Correct answer: A. CO2 rises at the enzyme
Breakdown of C4 acids in bundle sheath cells raises CO2 concentration, so RuBisCO acts mainly as a carboxylase.
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