| A | B |
|---|
| chloroplast | organelle where photosynthesis takes place |
| chlorophyll | green pigment |
| thylakoids | stacks of disk-shaped sacs in the chloroplasts |
| stroma | Thick fluid inside the chloroplasts |
| light reactions | 1st stage of photosynthesis (converts sunlight to chemical energy) |
| Calvin Cycle | 2nd stage of photosynthesis (makes sugar) |
| wavelength | The distance between two adjacent waves |
| electromagnetic spectrum | The range of types of electromagnetic energy |
| pigment | chemical compounds that give a substance its color |
| paper chromatography | lab technique used to separate pigments |
| photosystem | clusters of chlorophyll and other molecules within the thylakoid membrane |
| carbon cycle | process in which carbon moves from inorganic to organic compounds and back |
| greenhouse effect | keeps the world climate warm enough for living things |
