12. What are the most likely products of the reaction catalyzed by Rubisco under normal
atmospheric conditions, where O2 is abundant, and CO2 is low:
1. 3-phosphoglycerate
2. RuBP
3. Glycine and Serine 4.2-phosphoglycolate
Answers
Answer:RuBP oxygenase-carboxylase (rubisco), a key enzyme in photosynthesis, is the molecular equivalent of a good friend with a bad habit. In the process of carbon fixation, rubisco incorporates carbon dioxide (\text{CO}_2CO
2
start text, C, O, end text, start subscript, 2, end subscript) into an organic molecule during the first stage of the Calvin cycle. Rubisco is so important to plants that it makes up 30\%30%30, percent or more of the soluble protein in a typical plant leaf^1
1
start superscript, 1, end superscript. But rubisco also has a major flaw: instead of always using \text{CO}_2CO
2
start text, C, O, end text, start subscript, 2, end subscript as a substrate, it sometimes picks up \text O_2O
2
start text, O, end text, start subscript, 2, end subscript instead.
Answer:rupb
Explanation: