Question

What is the characteristic of C3 Plants versus C4 Plants?

Answer 1

Photorespiration occurs in C3 plants (during high temperature and low carbon dioxide concentration) while it is absent in C4 plants. C3 plants are adapted to cool and moist conditions while C4 plants are adapted to hot and dry conditions.

Answer 2

Answer:

The C4 plants differ from C3 plants with reference to the substrate that accepts CO2 in carbon assimilation. In the C 3 plants, CO 2 is assimilated by condensing with RuBP by the help of RuBisCO enzyme to yield the first stable product, three carbon compund PGA. In C 4 plants, CO 2 is assimilated by condensing with PEP, by the help of PEPCase enzyme to yield the first stable product, four carbon compound OAA