# Photosynthesis as Subject-Predicate-Object Triples

## Basic Definition & Process
- Photosynthesis, is, a process that converts light energy into chemical energy
- Photosynthesis, occurs in, plants
- Photosynthesis, occurs in, algae
- Photosynthesis, occurs in, cyanobacteria
- Photosynthesis, produces, glucose
- Photosynthesis, produces, oxygen
- Photosynthesis, requires, light
- Photosynthesis, requires, water
- Photosynthesis, requires, carbon dioxide

## Locations
- Light-dependent reactions, occur in, thylakoid membranes
- Light-independent reactions, occur in, stroma
- Calvin cycle, occurs in, stroma
- Photosystems, are located in, thylakoid membranes

## Key Inputs & Outputs
- Carbon dioxide, is used in, photosynthesis
- Water, is used in, photosynthesis
- Glucose, is produced by, photosynthesis
- Oxygen, is produced by, photosynthesis
- ATP, is produced by, light-dependent reactions
- NADPH, is produced by, light-dependent reactions

## Main Stages
- Photosynthesis, consists of, light-dependent reactions
- Photosynthesis, consists of, light-independent reactions
- Light-dependent reactions, produce, ATP
- Light-dependent reactions, produce, NADPH
- Calvin cycle, uses, ATP
- Calvin cycle, uses, NADPH
- Calvin cycle, produces, glucose

## Pigments & Light Absorption
- Chlorophyll, absorbs, light energy
- Chlorophyll a, is found in, all photosynthetic organisms
- Chlorophyll b, is found in, plants
- Carotenoids, absorb, light energy
- Xanthophyll, absorbs, light energy
- Photosystem II, contains, chlorophyll
- Photosystem I, contains, chlorophyll

## Electron Transport
- Electrons, travel through, electron transport chain
- Electrons, are excited by, light energy
- Water, is split by, photosystem II
- Water, releases, electrons
- Water, releases, protons
- Water, releases, oxygen

## Chemical Equations
- The overall equation for photosynthesis, is, 6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂
- Carbon fixation, converts, CO₂ into organic molecules

## Chloroplast Structure
- Photosynthesis, occurs in, chloroplasts
- Chloroplasts, contain, thylakoids
- Thylakoids, stack into, grana
- Chloroplasts, contain, stroma
- Chloroplasts, contain, chlorophyll

## Regulation & Factors
- Photosynthesis, is affected by, light intensity
- Photosynthesis, is affected by, temperature
- Photosynthesis, is affected by, CO₂ concentration
- Light saturation point, determines, maximum photosynthesis rate

## Carbon Fixation
- The Calvin cycle, fixes, carbon dioxide
- RuBisCO, catalyzes, carbon fixation
- 3-phosphoglycerate, is produced by, carbon fixation
- Ribulose bisphosphate, is the acceptor in, carbon fixation
