| A | B |
|---|
| Photosynthesis | Process by which plants convert solar energy into energy stored in chemical bonds. |
| Antenna Pigments | Pigments that capture wavelengths of light other than those absorbed by chlorophyll A; example - carotenoids |
| Photosynthetic Pigments | Pigments taht absorb light energy for photosynthesis |
| Photosystems | Light harvesting complexes located in the grana |
| Photosystem I | Light harvesting complex that is activated by PS II |
| Photosystem II | Light harvesting complex that absorbs light at the 680 nm and activates PS I |
| Light Dependent Reaction | One of two needed reactions that requires light to be absorbed by PS II and PS I; ATP is produced and photolysis occurs |
| Photolysis | Term given to describe when water is split in photosynthesis |
| Chloroplast | Organelle in the plant that contains the stroma, thylakoid and grana |
| Stroma | The part of the chloroplast that is involved in the Calvin cycle |
| Grana | The part of the chloroplast that is involved in the light reaction |
| C4 Plant | A plant that exhibits a modification in photosynthesis; modification minimizes time stomates are open; has bundle sheath cells |
| Bundle Sheath Cells | Unique cell in C4 plants that aid in minimizing the time stomates are open |
| CAM Plant | Plants that have modified their photosynthesis for their dry environments; stomates are open at night and closed during the day |
| Noncyclic photophosphorylation | The main process that occurs during the light dependent reaction; process begins with PS II and continues to PS I |
| cyclic photophosphorylation | Modification to the main process that occurs in the light-dependent reaction; only ATP levels are replenished; no NADPH is formed; electrons travel from PS II to PS I and back to PS II again |
| Calvin cycle | Also known as the dark reaction; site of carbon fixation; produces PGAL; uses large amounts of ATP |
| Light Independent Reaction | Also known as the Calvin cycle; occurs in the stroma; requires the products of the light reaction; not light |
| Photorespiration | Dead-end process that diverts energy from photosynthesis; no ATP and sugar are produced; occurs with Rubisco binds to O2 instead of CO2 |
