| A | B |
| chloroplast | organelle where photosynthesis takes place |
| mesophyll | CELL where photosynthesis takes place in a leaf |
| stroma | interior of chloroplast where Calvin cycle takes place |
| thylakoid | vast network of interconnected membranes in stacks where light rxns take place |
| chlorophyll | ring structure that contains magnesium and reflects green light |
| stomata | opening in leaf surface that release and take in gases |
| light dependent reactions | light + ADP + Pi + water --> ATP, NADPH, oxygen |
| photophosphorylation | making ATP with an ETC and light |
| NADPH | electron carrier which transports electrons to the Calvin Cycle |
| carbon fixation | attaching CO2 from air to a 5C RuBP in Calvin Cycle |
| pigments | light sensitive compounds that absorb light of a particular wavelength |
| absorption spectrum | graph showing wavelengths of light absorbed vs. absorption for a pigment |
| photosystem | a group of pigment molecules that consist of a light-harvesting complex and a reaction center |
| carotenes or carotenoids | orange pigments |