Photo-respiration can generate:

Explanation

Photorespiration (also known as the C2 cycle) is a metabolic process in plants where the enzyme rubisco combines O2 with RuBP in the presence of light to form unwanted products. The process leads to the production of CO2. The rate of photorespiration increases at high light intensities. At high light intensities, the rate of photolysis of water and light-dependent reactions increases. This increases the rate of production of oxygen leading to an increase in [O2] : [CO2], thereby favoring the oxygenase activity of rubisco combining O2 with RuBP. Photorespiration causes the rate of photosynthesis to decrease as less RuBP is available for carbon fixation. Thus, it leads to a decrease in the rate of the Calvin cycle and hence the overall rate of photosynthesis. It wastes energy and decreases sugar synthesis. In the photorespiratory pathway, there is no synthesis of ATP or NADPH.