NEET 2020 · Class 11

Photosynthesis in Higher Plants

The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of

  1. (A)2 molecules of 3-C compound
  2. (B)1 molecule of 3-C compound
  3. (C)1 molecule of 6-C compound
  4. (D)1 molecule of 3-C compound and 1 molecule of 2-C compound

The NCERT line that answers it

Verbatim line

Here the RuBP instead of being converted to 2 molecules of PGA binds with $O_2$ to form one molecule of phosphoglycerate and phosphoglycolate (2 Carbon) in a pathway called photorespiration.

Chapter
Photosynthesis in Higher Plants
Section
11.9 PHOTORESPIRATION

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that RuBP binds with O₂ to form 'one molecule of phosphoglycerate and phosphoglycolate (2 Carbon)', which directly corresponds to '1 molecule of 3-C compound and 1 molecule of 2-C compound' in option D.

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