(Photosynthesis, is, a biological process)  
(Photosynthesis, converts, light energy into chemical energy)  
(Photosynthesis, produces, organic molecules)  
(Photosynthesis, releases, oxygen)  
(Photosynthesis, occurs in, plants)  
(Photosynthesis, occurs in, algae)  
(Photosynthesis, occurs in, cyanobacteria)  
(Photosynthesis, primarily occurs in, chloroplasts)  
(Chloroplasts, are, plant organelles)  
(Chloroplasts, contain, thylakoid membranes)  
(Chloroplasts, contain, stroma)  
(Thylakoid membranes, contain, photosystems)  
(Thylakoid membranes, contain, electron transport chain components)  
(Thylakoid membranes, contain, ATP synthase)  
(Stroma, contains, Calvin cycle enzymes)  
(Overall oxygenic photosynthesis, uses, water)  
(Overall oxygenic photosynthesis, uses, carbon dioxide)  
(Overall oxygenic photosynthesis, requires, light)  
(Overall oxygenic photosynthesis, yields, carbohydrates)  
(Overall oxygenic photosynthesis, yields, oxygen)  
(Overall net reaction, can be written as, 6 CO2 + 6 H2O + light → C6H12O6 + 6 O2)  
(Photosynthesis, is divided into, light-dependent reactions)  
(Photosynthesis, is divided into, light-independent reactions)  
(Light-dependent reactions, occur in, thylakoid membranes)  
(Light-independent reactions, occur in, stroma)  
(Light-independent reactions, are also called, the Calvin–Benson cycle)  
(Light-dependent reactions, produce, ATP)  
(Light-dependent reactions, produce, NADPH)  
(Light-dependent reactions, produce, oxygen)  
(Calvin cycle, consumes, ATP)  
(Calvin cycle, consumes, NADPH)  
(Calvin cycle, fixes, carbon dioxide)  
(Calvin cycle, produces, triose phosphates)  
(Triose phosphates, can be used to synthesize, glucose)  
(Triose phosphates, can be used to synthesize, sucrose)  
(Triose phosphates, can be used to synthesize, starch)  
(Photosynthetic pigments, absorb, light)  
(Chlorophyll a, is, a primary photosynthetic pigment)  
(Chlorophyll b, is, an accessory photosynthetic pigment)  
(Carotenoids, are, accessory photosynthetic pigments)  
(Carotenoids, include, carotenes)  
(Carotenoids, include, xanthophylls)  
(Pigments, are embedded in, light-harvesting complexes)  
(Light-harvesting complexes, transfer, excitation energy)  
(Excitation energy, is transferred to, reaction centers)  
(Reaction centers, perform, charge separation)  
(Charge separation, initiates, electron transport)  
(Oxygenic photosynthesis, uses, two photosystems)  
(Photosystem II, is abbreviated as, PSII)  
(Photosystem I, is abbreviated as, PSI)  
(PSII, contains, P680)  
(PSI, contains, P700)  
(P680, is, a special pair of chlorophyll a molecules)  
(P700, is, a special pair of chlorophyll a molecules)  
(PSII, absorbs light best near, 680 nm)  
(PSI, absorbs light best near, 700 nm)  
(PSII, oxidizes, water)  
(Water oxidation, occurs at, the oxygen-evolving complex)  
(Oxygen-evolving complex, contains, a manganese-calcium cluster)  
(Oxygen-evolving complex, extracts electrons from, water)  
(Water splitting, produces, electrons)  
(Water splitting, produces, protons)  
(Water splitting, produces, oxygen)  
(PSII, transfers electrons to, plastoquinone)  
(Plastoquinone, transfers electrons to, cytochrome b6f)  
(Cytochrome b6f, transfers electrons to, plastocyanin)  
(Plastocyanin, transfers electrons to, PSI)  
(PSI, transfers electrons to, ferredoxin)  
(Ferredoxin, transfers electrons to, ferredoxin–NADP+ reductase)  
(Ferredoxin–NADP+ reductase, reduces, NADP+)  
(NADP+, is reduced to, NADPH)  
(Electron transport chain, pumps, protons)  
(Proton pumping, builds, a proton motive force)  
(Proton motive force, drives, ATP synthase)  
(ATP synthase, synthesizes, ATP)  
(ATP synthesis in chloroplasts, is called, photophosphorylation)  
(Noncyclic electron flow, moves electrons from, water)  
(Noncyclic electron flow, moves electrons to, NADP+)  
(Noncyclic electron flow, produces, oxygen)  
(Noncyclic electron flow, produces, NADPH)  
(Noncyclic electron flow, produces, ATP)  
(Cyclic electron flow, involves, PSI)  
(Cyclic electron flow, returns electrons to, cytochrome b6f)  
(Cyclic electron flow, produces, ATP)  
(Cyclic electron flow, does not produce, NADPH)  
(Cyclic electron flow, does not produce, oxygen)  
(Thylakoid lumen, accumulates, protons)  
(Stroma, becomes relatively, alkaline during illumination)  
(Chloroplast ATP synthase, spans, the thylakoid membrane)  
(ATP synthase CF0 subunit, conducts, protons)  
(ATP synthase CF1 subunit, catalyzes, ATP formation)  

(Calvin cycle, has phases, carbon fixation)  
(Calvin cycle, has phases, reduction)  
(Calvin cycle, has phases, regeneration)  
(Carbon fixation, attaches CO2 to, ribulose-1,5-bisphosphate)  
(Ribulose-1,5-bisphosphate, is abbreviated as, RuBP)  
(RuBP, is, a 5-carbon sugar)  
(RuBisCO, catalyzes, CO2 fixation)  
(RuBisCO, stands for, ribulose-1,5-bisphosphate carboxylase/oxygenase)  
(RuBisCO, produces, 3-phosphoglycerate)  
(3-phosphoglycerate, is abbreviated as, 3-PGA)  
(3-PGA, is reduced to, glyceraldehyde-3-phosphate)  
(Glyceraldehyde-3-phosphate, is abbreviated as, G3P)  
(Reduction phase, uses, ATP)  
(Reduction phase, uses, NADPH)  
(Regeneration phase, uses, ATP)  
(Regeneration phase, regenerates, RuBP)  
(Calvin cycle, for net production of one G3P, uses, 3 CO2)  
(Calvin cycle, for net production of one G3P, uses, 9 ATP)  
(Calvin cycle, for net production of one G3P, uses, 6 NADPH)  
(G3P, can be exported to, cytosol)  
(G3P, can be retained in, chloroplast)  
(Starch, is synthesized in, chloroplasts)  
(Sucrose, is synthesized in, cytosol)  

(Photosynthesis, is limited by, light intensity)  
(Photosynthesis, is limited by, CO2 concentration)  
(Photosynthesis, is limited by, temperature)  
(Photosynthesis, is limited by, water availability)  
(Photosynthesis, can be limited by, nutrient availability)  
(Nitrogen availability, affects, chlorophyll and enzyme synthesis)  
(Magnesium, is required for, chlorophyll structure)  
(Iron, is required for, electron transport proteins)  
(Phosphate availability, affects, ATP and NADPH turnover)  
(High light, can cause, photoinhibition)  
(Photoinhibition, damages, PSII)  
(Plants, protect against excess light via, non-photochemical quenching)  
(Non-photochemical quenching, dissipates, excess excitation energy as heat)  
(Carotenoids, help prevent, oxidative damage)  
(Reactive oxygen species, can be generated by, overexcited chlorophyll)  
(Photosynthesis, is coupled to, cellular redox balance)  

(Stomata, regulate, gas exchange)  
(Stomata, allow entry of, CO2)  
(Stomata, allow loss of, water vapor)  
(Guard cells, control, stomatal aperture)  
(Stomatal closure, reduces, CO2 uptake)  
(Stomatal closure, reduces, photosynthetic rate)  
(Drought, promotes, stomatal closure)  

(RuBisCO, also catalyzes, oxygenation of RuBP)  
(Oxygenation of RuBP, initiates, photorespiration)  
(Photorespiration, consumes, ATP)  
(Photorespiration, releases, CO2)  
(Photorespiration, reduces, photosynthetic efficiency)  
(Photorespiration, increases when, O2 is high)  
(Photorespiration, increases when, CO2 is low)  
(Photorespiration, increases at, high temperature)  
(Photorespiration, involves, chloroplasts)  
(Photorespiration, involves, peroxisomes)  
(Photorespiration, involves, mitochondria)  

(C3 photosynthesis, fixes CO2 first into, 3-carbon compounds)  
(C3 plants, rely primarily on, the Calvin cycle in mesophyll cells)  
(C3 plants, often experience, significant photorespiration)  
(C4 photosynthesis, concentrates, CO2 around RuBisCO)  
(C4 plants, fix CO2 first into, 4-carbon compounds)  
(C4 pathway, uses, PEP carboxylase)  
(PEP carboxylase, has high affinity for, CO2 as bicarbonate)  
(PEP carboxylase, is less sensitive to, O2)  
(C4 plants, spatially separate, initial CO2 fixation and the Calvin cycle)  
(C4 plants, often exhibit, Kranz anatomy)  
(Kranz anatomy, includes, bundle sheath cells)  
(Kranz anatomy, includes, mesophyll cells)  
(Bundle sheath cells, run, the Calvin cycle in C4 plants)  
(Mesophyll cells, perform, initial CO2 fixation in C4 plants)  
(C4 photosynthesis, reduces, photorespiration)  
(C4 photosynthesis, improves performance in, high light and high temperature)  
(C4 photosynthesis, has higher, ATP cost per CO2 fixed)  

(CAM photosynthesis, temporally separates, CO2 uptake and the Calvin cycle)  
(CAM plants, open stomata primarily at, night)  
(CAM plants, store CO2 as, malic acid)  
(CAM plants, decarboxylate malate during, daytime)  
(CAM photosynthesis, increases, water-use efficiency)  
(CAM photosynthesis, is common in, succulents)  
(CAM photosynthesis, is common in, many cacti)  

(Photosynthesis, supports, most food webs)  
(Photosynthesis, is a major component of, the global carbon cycle)  
(Photosynthesis, removes, CO2 from the atmosphere)  
(Photosynthesis, contributes to, atmospheric O2)  
(Oxygen in Earth’s atmosphere, is largely produced by, photosynthetic organisms)  
(Primary production, is driven by, photosynthesis)  
(Net primary productivity, depends on, photosynthetic rate minus respiration)  

(Chlorophyll, absorbs strongly in, red light)  
(Chlorophyll, absorbs strongly in, blue light)  
(Chlorophyll, reflects more, green light)  
(Green appearance of leaves, is caused by, chlorophyll reflecting green wavelengths)  
(Action spectrum of photosynthesis, corresponds to, pigment absorption plus energy transfer)  
(Engelmann’s experiment, linked, oxygen production to illuminated regions)  

(Thylakoids, are arranged into stacks called, grana)  
(Grana, are connected by, stroma lamellae)  
(PSII, is enriched in, grana membranes)  
(PSI, is enriched in, stroma lamellae)  
(ATP synthase, is enriched in, stroma-exposed thylakoid regions)  

(Photosynthetic electron transport, resembles, chemiosmotic coupling)  
(Chemiosmosis, was proposed by, Peter Mitchell)  
(Proton gradient, is a form of, stored potential energy)  
(ATP, is, a universal cellular energy currency)  
(NADPH, provides, reducing power for biosynthesis)  

(Anoxygenic photosynthesis, does not produce, oxygen)  
(Anoxygenic photosynthesis, occurs in, some bacteria)  
(Anoxygenic photosynthesis, can use electron donors such as, hydrogen sulfide)  
(Anoxygenic photosynthesis, uses, bacteriochlorophylls)  

(Photosynthesis, is inhibited by, some herbicides)  
(Some herbicides, block, PSII electron transfer)  
(DCMU, inhibits, electron transfer from PSII to plastoquinone)  

(Quantum yield of photosynthesis, depends on, light and physiological state)  
(Photoacclimation, adjusts, photosynthetic capacity to growth light)  
(Shade leaves, often have, higher chlorophyll per area)  
(Sun leaves, often have, higher maximum photosynthetic rates)  

(Chloroplasts, originated via, endosymbiosis)  
(Chloroplasts, are derived from, cyanobacteria-like ancestors)  
(Chloroplasts, contain, their own DNA)  
(Chloroplasts, contain, 70S ribosomes)  
(Chloroplasts, divide by, binary fission)  

If you want, I can (1) expand this into thousands of triples (including protein subunits, intermediates, and regulatory details) or (2) output the triples in RDF/Turtle or CSV format.
