Question

Difference between C3 plants and C3 cycle

Answer 1

The main difference between C3 and C4 plants is, C3 plants uses the C3 pathway and majority of plant son this Earth are C3 plants, while on the other hand, C4 plants uses the C4 pathway. C4 plants are less than C3 but they are efficient in carrying out the process of photosynthesis.

C3 VS C4 Plants C3 Plants:

C3 plants are numerous and they use the C3 pathway. In C3 plants, the chloroplast is of one type, that is monomorphic and they do not have peripheral reticulum. The bundle sheath of C3 plants do not contain much chloroplast. Light reactions in the C3 plants occur in mesophyll cells where carbon fixation occurs with the help of ribulose bisphosphate carboxylase oxygenase. Incoming carbon dioxide reacts with G3P and goes through a series of reduction. These biochemical processes are almost similar in all plants.

C4 Plants:

C4 plants mostly dwell in warm water and moist climate. In the mesophyll cells of C4 plants, the oxygen is in more concentration rather than carbon dioxide. Oxygen concentration is high in these cells due to photolysis. C4 cycle is the alternate pathway of calvin cycle which takes place during the dark phase of photosynthesis. Oxaloacetic acid is the first compound of the C4 cycle and the leaves of these plants have special type of anatomy called krans anatomy.