The process which makes major difference between C3 and C4 plants is
As learnt in
A process in plant metabolism where enzyme RuBisCO oxygenates RuBP, causing some of the energy produced by photosynthesis to be wasted.
O2 enters Calvin cycle instead of Co2 this results in reduced rate of photosynthesis.
Calvin cycle -
Involves CO2 fixation in the presence of ATP and NADPH and its conversion to glucose, through a series of reactions
Discovered by Calvin and Benson. Divided into three phases:
2) Glycolytic reversal
3) Regeneration of RuBP
Hatch Slack pathway -
Regular mode of CO2 fixation in number of tropical plants. First product is 4-carbon compound, hence, known as C4.
Photorespiration is present in C3 but almost absent in C4 plants.