A) photorespiration
B) dark respiration
C) CAM
D) All of these
Correct Answer: A
Solution :
Respiration that is initiated in chloroplasts and occurs in light only, is called photorespiration. This process occurs when there is low \[C{{O}_{3}}\] concentration but high 02 concentration. At mid-day, when temperature and \[C{{O}_{2}}\] content are high, the affinity of RuBP carboxylase increases for \[{{O}_{2}}\] but decreases for \[C{{O}_{2}}\]. Thus, it converts RuBP to 3-carbon compound CPGA) and a 2-carbon compound Cphosphoglycolate). The phosphoglycolate is converted rapidly to glycolate in the peroxisomes. Glycolate is further converted to glycine, serine, \[C{{O}_{2}}\]and \[N{{H}_{3}}\] without the generation of ATP or NADPH. Thus net result is oxidation of.You need to login to perform this action.
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