Answer:
d. photosynthesis. e. photorespiration.
Explanation:
Photorespiration is a biological process that reduces the efficiency of photosynthesis in some plants during hot summer periods and consumes oxygen (O2) and produces carbon dioxide (CO2) through the degradation of intermediate compounds in the Calvin cycle.
Many of these plants, including major crops such as soybeans, wheat and potatoes, do not yield as many carbohydrates from photosynthesis as expected, especially in very hot summer periods. This is a consequence of the intermittent gas exchange between the plant's need for CO2 and its need to prevent water loss.
In these plants, during respiration and photorespiration processes, carbon dioxide is split to form oxygen gas and some carbon compounds.
