The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of:
2 molecules of 3-C compound
1 molecule of 3-C compound
1 molecule of 6-C compound
1 molecule of 3-C compound and 1 molecule of 2-C compound
The oxygenation activity of RuBisCo enzyme in photorespiration produces one molecule of a 3-carbon compound (3-phosphoglycerate) and one molecule of a 2-carbon compound (phosphoglycolate). This occurs when RuBisCo reacts with oxygen instead of carbon dioxide. The 3-phosphoglycerate can be utilized in the Calvin cycle, while the phosphoglycolate undergoes further reactions in the photorespiration pathway.
So, the correct answer is '1 molecule of 3-C compound and 1 molecule of 2-C compound'.