| A | B |
|---|
| biochemical pathway | series of reactions in which the product of one reaction becomes the reactant of the next |
| autotroph | organism that can build organic molecules from inorganic molecules |
| heterotroph | organism that cannot make own food but must depend on autotrophs for nutrition |
| cellular respiration | process that releases chemical energy for use by the cell |
| chlorophyll | main photosynthetic pigment |
| light | electromagnetic radiation |
| wavelength | distance from the crest of one wave to the crest of the next |
| pigments | colored compounds that absorb light |
| accessory pigments | pigment molecules other than chlorophyll a that absorb energy for photosynthesis |
| guard cells | control the opening and closing of the stomata |
| stomata | opening through which oxygen leaves the leaf and carbon dioxide enters |
| RuBP | 5 carbon starting compound of the Calvin Cycle |
| PGAL | 3 carbon high energy product of the Calvin Cycle |
| thylakoid | individual flattened sac of the chloroplast |
| grana | stack of thylakoid |
| stroma | liquid material of the chloroplast |
| carotene | orange pigment |
| xanthophyll | pale yellow pigment |
| Products of the light reaction | oxygen, ATP, NADPH |
| electron transport chain | series of electron acceptors in the thylakoid membrane |
| photosystem | group of pigment molecules that absorb light with chlorophyll a at the center |
| NADP+ | electron and proton carrier for photosynthesis |
| chemiosmosis | the process of the diffusion of protons down their concenration gradient coupled with the synthesis of ATP |
| ATP | Adenosine triphosphate |
| CAM | crassulacean acid metabolism |
| Calvin Cycle | dark reaction |
