Photorespiration: Respiration that is initiated

Respiration that is initiated in chloroplasts and occurs in light only is called photorespiration. Photorespiration or Glycolate Pathway: It is interesting to know that in the plants possessing Calvin cycle, the enzyme RuBP carboxylase can initiate the reversal of photosynthetic reactions. This process occurs when there is low CO2, concentration but high O2, concentration. At mid-day, when temperature and CO2 content are high, the affinity of RuBP carboxylase increases for O2 but decreases ... Photorespiration is a cyclic respiration process that happens in photosynthetic cells and results in CO2 removal. Photorespiration occurs most commonly in C3 plants such as beet, bean, cotton, rice, wheat, barley, and so on. Photorespiration is a process that occurs in plants when carbon dioxide concentration is low and RuBisCO reacts with oxygen instead of carbon dioxide. Learn about the causes, effects and mechanisms of photorespiration, and how some plants have evolved to avoid it. Photorespiration is initiated by the oxygenase activity of ribulose-1,5-bisphosphate-carboxylase/oxygenase (RUBISCO), the same enzyme that is also responsible for CO2 fixation in almost all photosynthetic organisms. Phosphoglycolate formed by oxygen ...