Q. (A) In $C_{3}$ -plants, if $O_{2}$ does bind to $R u B i s CO$ then $C O_{2}$ fixation decreases.
(B) $C_{4}$ -plants have a mechanism that increases the concentration of $O_{2}$ at the $R u B i s CO$ enzyme site.
(C) In $C_{4}$ -plants, $R u B i s CO$ functions as a oxygenase enzyme and minimising the carboxylase activity.
(D) $C_{4}$ -plants lack photoxidation.
(E) $R u B i s CO$ has a much greater affinity for $C O_{2}$
Choose the option which have all the correct statements (from $A$ to $E$ ) for photosynthesis :-

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A, B and C

Solution: