| A | B |
|---|
| chloroplast | organelles of photosynthesis |
| stroma | fluid interior of the chloroplast which is enclosed by two outer membranes |
| thylakoid membrane system | internal system of membrane that weaves through the fluid interior |
| thylakoids | disk-shaped sacs of the internal membrane system which are found stacked one on top of the other |
| wavelength | the horizontal distance between crests of every two successive waves of light |
| chlorophylls | main phtosynthetic pigments that absorb the wavelengths that are most efficient at driving photosynthesis |
| carotenoids | accesory pigments that absorb light of blue-violet and blue-green wavelengths and reflect yellow, orange, and red ones |
| light-dependent reactions | represents 1st stage of photosynthesis |
| photosystems | one of the many clusters of light trapping pigment molecules embedded in photosynthetic membranes |
| electron transport system | organized arrays of enzymes, coenzymes, and other proteins embedded in or attached to a cell membrane |
| photolysis | reaction sequence in photosystem II by which molecules of water split into oxygen, hydrogen ions, and electronns |
| light independent reactions | the "synthesis" part of photosynthesis |
| Calvin Benson cycle | "synthesis" cycle |
| RuBp | a compound with a backbone of 5 carbon atoms |
| Rubisco | its action produces an unstable 6 carbon intermediate that splits 2 molecules of PGA |
| autotrophs | self nourishing plants |
| photosynthesis | energy from the sun is converted to chemical bond energy of ATP, then ATP gives up energy at sites where glucose and other organic compounds are synthesized |
| heterotrophs | being nourished by others |
