|| C3 plants
|| C4 plants
||The first acceptor of CO2 is ribulose diphosphate (RuDP).
||The first acceptor of CO2 is phospoenol pyruvate (PEP).
||Phosphoglyceric acid is the first stable product.
||Oxaloacetic acid is the first stable product.
||Calvin cycle is performed by only one type of chloroplasts.
||The chloroplasts are of two types.
||Only C3 cycle is found.
||Both C3 and C4 cycles are found.
||The CO2 compensation point is 50-150 ppm CO2.
||The CO2 compensation point is 0-10 ppm of CO2.
||Photorespiration is present and easily detectable.
||Photorespiration is usually absent.
||The efficiency of CO2 absorption at low concentration is far less. So they are less efficient.
||The efficiency of CO2 absorption at low concentration is quite high. So they are more efficient.
||The rate of photosynthesis is comparatively lower.
||The rate of photosynthesis is comparatively higher.
||Bundle sheath cells are absent in these plants.
||Bundle sheath cells are present in these plants.
||Leaves lack Kranz anatomy.
||Leaves possess Kranz anatomy.
||Contains high protein content.
||Contain less protein content than C3 plants.
||The optimum temperature range is 65-75 degrees Fahrenheit.
||The optimum temperature range is 90-95 degrees Fahrenheit.
||Dark reaction is carried out by mesophyll cells.
||Dark reaction is carried out by both mesophyll and bundle sheath cells.
||For examples: bamboo, wheat, barley, rice, rye, oat, etc.
||For example: sugarcane, Maize, Euphorbia, Amaranthus, etc.
Differences between C3 and C4 plants