| A | B |
| photosynthesis | process by which energy is stored in chemical bonds of organic molecules |
| respiration | process by which chemical energy stored in organic molecules is released for use in cells |
| sun | source of all energy |
| chloroplasts | lighy-capturing organelles; green colored and oval structured |
| chlorophyll | must abundant and important photosynthetic pigments |
| carotenes | orange pigment |
| xanthophylls | yellow pigments |
| thylakoids | photosynthetic membranes arragned as stacks |
| grana | stacks of thylakoids |
| stroma | region between stroma; fluid-filled |
| light-dependent reactions | take place only in the presence of light. Light supplies energy for these reactions |
| light-independent reactions | depends on high-energy chemical products made in light-dependent reactions and occur without light |
| carbon fixation | the conversion of carbon dioxide into glucose |
| Calvin cycle | place where carbon fixation takes place |
| guard cells | specilaized cells that surround pores on the surface of leaves to change their shape |
| photolysis | water is split by light energy |