5 ATP and 3 NADH are generated by fixation of 1 molecule of CO₂ by C4 plants.

The term CAM may have been coined by Ranson and Thomas in 1940.

Chloroplast dimorphism is seen in maize plant. Maize plant is a C4 plant. The bundle sheath cells contain starch-rich chloroplasts which differ from those in mesophyll cells present as the outer ring. Thus, chloroplasts are dimorphic.

The magnesium ion required for the activation of RuBisCo is released from the thylakoid lumen when the inner pH drops due to the active pumping of protons from the electron flow.

Spirulina Glaucospira Lagerheim has never been employed in the genetic engineering of RuBisCo.

Oxaloacetic acid is the first stable product formed during C4 fixation which takes place in sorghum.

Phosphopentose isomerase catalyzes the conversion of ribose-5-phosphate (R5P) into ribulose-5-phosphate (Ru5P, RuP) in the regeneration stage of Calvin cycle.

2-Carboxy-D-arabinitol 1-phosphate (CA1P) inhibits the catalytic activity of RuBisCo at night. RuBisCO activase promotes the release of CA1P from the catalytic sites.

Phosphoglycolate inhibits certain enzymes involved in photosynthetic carbon fixation. Hence, it is often said to be an 'inhibitor of photosynthesis'.

C3 cycle cannot operate under very low CO₂ conditions and oxygen has inhibitory effect on photosynthesis. Thus, C3 cycle cannot operate in presence of oxygen.

Ferredoxin-dependent GOGAT (Fd-GOGAT) is strictly found in cyanobacteria and photosynthetic eukaryotes.

During the light phase, water is oxidized and releases H₂.

There is a net gain of 1 G3P molecule in the regeneration step of Calvin cycle.

GLK gene pairs regulate chloroplast development in diverse plant species. As GLK genes are not found in any algal or non-plant genomes, GLK transcription factors evolved to regulate chloroplast development as plants moved on to land.

Triosephosphate isomerase is required for conversion of all of the G3P reversibly into dihydroxyacetone phosphate (DHAP), which is a 3-carbon molecule.