(a) C3 cycle occurs in all the plants whether they are C3 or C4 plants.
(b) At high light intensities C3 and C4 plants show increase in the rate of photosynthesis.
© The availability of C02 levels is limiting to C3 plants. C3 plants respond to higher concentration of carbon dioxide.
(d) They have increased rate of photosynthesis. It leads to higher productivity in tomatoes and bell pepper.
(e) When these plants grow in C02 enriched
atmosphere, their yield increases