| A | B |
|---|
| radient energy | energy that is transmitted in waves |
| elctromagnetic spectrum | the complete range of radient energy forms(ROYGBIV) |
| photons | tiny packets of radient energy |
| pigment | a molecule containingatoms that enable it to absorb light |
| chlorophyll | a green pigment that is the primary light absorbing agent for photosynthesis |
| carotenoids | the yellow and orange plant pigments that produce fall colors |
| phtosystem | molecule clusters of pigments used in photsynthesis |
| Photsystem 1 | boosts electrons to a higher energy state by absorbing light with a wavlength of 700 nanometers |
| Photosystem 2 | boosts electrons by absorbing more energetic light with a slightly shorter wavelength of 680 nanometers |
| reaction center | area of a photosystem where an electron is boosted and leaves a chlorophyll a molecule |
| thylakoids | tiny flattened membrane-bound sacs in the chloroplasts |
| grana | thylakoids stacked in columns |
| stroma | the fluid matrix where the grana and thylakoids are suspended |
| electron transport cain | mambrane bound protein and pigment molecules |
| ATP synthetase | protein channel where ATP is made |
| reducing power | attachable hydrogen atoms |
| NADPH | reduced form of NADP+(nicotinamide adenine dinucleotide phosphate) |
| NADP+ | a coenzyme that carries hydrogen atoms (and energy) from one place to another in a cell |
| carbon fixation | the process in which enzymes incorporate carbon atoms from carbon dioxide into organic molecules |
| Calvin Cycle | the second major pathway in photosynthesis involving carbon fixation and carbohydrate formation |
