What is photorespiration

Answer 1

Photorespiration is a metabolic process that occurs in plants in which oxygen is consumed and carbon dioxide is released during photosynthesis. This process occurs when the enzyme RuBisCO (ribulose 1,5-bisphosphate carboxylase/oxygenase) binds with oxygen instead of carbon dioxide, resulting in the release of carbon dioxide and the consumption of ATP and NADPH. Photorespiration is generally considered to be an inefficient and wasteful process as it reduces the amount of carbon fixed during photosynthesis, leading to a decrease in plant productivity. It is more likely to occur under high temperatures, low carbon dioxide concentrations, and intense light conditions.