C3 and C4 plants C3 plants :- 1. Found in all photosynthetic | Agriculture Exams Library
C3 and C4 plants
C3 plants :- 1. Found in all photosynthetic plants. 2. Plants that use the cycle can be hydrophytic, mesophytic and xerophytic. 3. Photoactive Stomata 4. High rate of Photorespiration 5. Normal Leaf anatomy 6. For the synthesis of glucose molecule or 6CO2 fixation:12 NADPH and 18 ATPs are required. 7. Single CO2 fixation occurs 8. Primary CO2 atmospheric acceptor RUBP 9. First stable product 3PGA 10. First enzyme involved RUBISCO 11. Carbon dioxide compensation point: 30-70PPM
C4 Plants :- 1. Only in tropical plants. 2. Plants that use the cycle can be mesophytic 3. Photoactive Stomata 4. Photorespiration: less or negligible 5. Kranz anatomy 6. 12 NADPH and 30 ATPs are required. 7. Double carbon dioxide fixation 8. Atmosphere Co2 acceptor- PEP(In mesophyll cell) and Metabloic Co2 acceptor-RUBP(In bundle sheath cell) 9. First stable product OAA (Oxalo acetic acid) 10.First enzyme involved PEP Carboxylase 11. CO2 compensation point: 10PPM
