Non cyclic photophosphorylation is not only connected with ATP synthesis but also production of NADPH. It involves two photosystems—PSI and PSII. PSII (680) receives electrons from photolysis of water and transfer it to PSI (700) to form NADPH from NADP⁺. The hydrogen required for reduction comes from breaking of water molecules.

Correct Option: D

Non cyclic photophosphorylation is not only connected with ATP synthesis but also production of NADPH. It involves two photosystems—PSI and PSII. PSII (680) receives electrons from photolysis of water and transfer it to PSI (700) to form NADPH from NADP⁺. The hydrogen required for reduction comes from breaking of water molecules.

In C₄ plants, C₄ cycle occurs in mesophyll cells and C₃ - cycle occurs in bundle sheath cells.

Correct Option: D

In C₄ plants, C₄ cycle occurs in mesophyll cells and C₃ - cycle occurs in bundle sheath cells.

The C₄ pathway allows photosynthesis to occur at very low concentrations of carbon dioxide as PEP carboxylase has an extremely high affinity for carbon dioxide. This pathway also works well at high temperatures and light intensity, enabling efficient photosynthesis in tropical plants.

Correct Option: C

The C₄ pathway allows photosynthesis to occur at very low concentrations of carbon dioxide as PEP carboxylase has an extremely high affinity for carbon dioxide. This pathway also works well at high temperatures and light intensity, enabling efficient photosynthesis in tropical plants.

Photorespiration is the process which occurs in C₃ plants. In this process, peroxisomes, chloroplast and mitochondria take part. The oxygen consuming reactions occurs in peroxisomes and stroma of chloroplast while CO₂ releasing reaction occurs in mitochondria.

Correct Option: A

Photorespiration is the process which occurs in C₃ plants. In this process, peroxisomes, chloroplast and mitochondria take part. The oxygen consuming reactions occurs in peroxisomes and stroma of chloroplast while CO₂ releasing reaction occurs in mitochondria.

Equation for C₄ pathway is :
6 PEP + 6 RuBP + 6CO2 + 30 ATP + 12 NADPH + 6PEP + 6 RuBP + C₆H₁₂O₆ + 30 ADP + 30 H3PO4 + 12 NADP +
The net reaction of C₃ dark fixation is 6RuBP + 6CO₂ + 18ATP + 12 NADPH 6 RuBP + C₆H₁₂O₆ + 18 ADP + 18 P + 12 NADP +

Correct Option: C

Equation for C₄ pathway is :
6 PEP + 6 RuBP + 6CO2 + 30 ATP + 12 NADPH + 6PEP + 6 RuBP + C₆H₁₂O₆ + 30 ADP + 30 H3PO4 + 12 NADP +
The net reaction of C₃ dark fixation is 6RuBP + 6CO₂ + 18ATP + 12 NADPH 6 RuBP + C₆H₁₂O₆ + 18 ADP + 18 P + 12 NADP +