| absorption | chlorophyll b | light-harvesting complex | product |
| absorption spectrum | chloroplast | mesophyll | prokaryote |
| accessory pigment | consumer | NADP+ | protist |
| action spectrum | crassulacean acid metabolism | NADP+ reductase | radiant energy |
| ADP | cyclic electron flow | NADPH | reactant |
| alga | cytochrome complex | nicotinamide adenine dinucleotide phosphate | reaction center |
| ATP | electromagnetic energy | organelle | redox reaction |
| ATP synthase | electromagnetic radiation | organic acid | reflection |
| autotroph | electromagnetic spectrum | organic molecule | refraction |
| biosphere | electron transport | outer membrane | ribulose bisphosphate |
| bundle-sheath cell | excited state | oxygen | ribulose bisphosphate carboxylase |
| C3 plant | fluorescence | phosphorescence | rubisco |
| C4 plant | frequency | photoautotroph | RuBP |
| Calvin cycle | G3P | photon | solar energy |
| CAM plant | glyceraldehyde-3-phosphate | photorespiration | spectrophotometer |
| carbohydrate | granum | photosynthesis | stoma |
| carbon dioxide | ground state | photosynthetic pigment | stroma |
| carbon fixation | heterotroph | photosystem | sugar |
| carotenoid | inner membrane | photosystem I | synthesis |
| chemical energy | inorganic phosphate | photosystem II | thylakoid |
| chemiosmosis | intermembrane space | pigment | transmission |
| chemoautotroph | leaf | plant | trophic level |
| chemosynthesis | light | primary electron acceptor | water |
| chlorophyll | light independent reactions | producer | wavelength |
| chlorophyll a | light reactions |