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Biology Vocab Ch.6
vocab
| Question | Answer |
|---|---|
| Accessory Pigment | Pigment that absorbs light energy and transfers energy to Chlorophyll A in photosynthesis |
| Chemiosmosis | process in chloroplasts and mitochondria in which the movement of protons down their concentration gradient across a membrane is coupled to the synthesis of ATP |
| Adenosine Diphosphate | Energy breakdown of Adensosine Triphosphate |
| ATP Synthase | Enzyme that catalyzes the synthesis of ATP FROM ADP + PHOSPHATE |
| Biochemical Pathway | Series of chemical reactions in which the product of one reaction is consumed in the next reaction |
| Carotenoid | Light absorbing compound that serves as an accessory pigment in photosynthesis |
| Chlorophyll | Class of light absorbing pigments used in photosynthesis |
| Electron Transport Chain | Molecules in the thylakoid membrane or in the inner mitochondrial membrane that uses some of the energy in electrons to pump protons across the membrane |
| Granum | Stack of thylakoids, in a chloroplast |
| Light Reactions | Initial reactions in photosynthesis. Including the absorption of light in photosystems 1 and 2.that passage of electrons along the electron transport chains, the production of NADPH and O2, and the synthesis of ATP through chemiosmosis |
| NADP+ | Nicotinamide Adenine Dinucleotide. organic molecule that accepts electrons during redox reactions |
| Photosynthesis | The conversion of light energy to chemical energy stored in organic compounds |
| Photosystem | Unit of several hundred chlorophyll molecules and carotenoid pigment molecules in the thylakoid membrane |
| Photosystem I | second Steps in Electron Transport. involves PEA and stuff |
| Photosystem II | First Steps in Electron Transport. involves PEA and stuff |
| Pigment | Compound that absorbs light and imparts color |
| Primary Electron Acceptor | Molecule in thylakoid membrane that accepts the electrons that Chlorophyll A loses in the light reactions |
| Stroma | Solution that surrounds the thylakoids in a chloroplast |
| Visible Spectrum | Portion of sunlight percieved by the human eye as various colors |
| Wavelength | Distance betweens crests in a wave |
| C3 Plant | PLant that fixes carbon exclusively through the Calvin Cycle, named for the three-carbon compound that is initially formed |
| C4 Pathway | |
| Calvin Cycle | Biochemical Pathway of photosynthesis in which CO2 is converted into carbohydrate |
| CAM | Crassulacean Acid Metabolism. biochemical pathway in certain plants in which CO2 is incorporated into organic acids at night and release3d for fixation in the Calvin cycle during the day |
| Carbon Fixation | Incorporation of carbon Dioxide into organic compounds |
| PGA | Phosphoglycerate; three carbon molecule formed in the first step of the Calvin Cycle |
| PGAL | Glyceraldehyde Phosphate; three carbon molecule formed in the second step of the calvin cycle that can leave the cycle and be used to make other organic compounds |
| RuBP | ribulose Biphosphate; five carbon carbohydrate that combines with CO2 to from two molecules of PGA in the first step of the calvin cycle |
| Stoma | One of many small pores located on the underside of a leaf; aids in gas exchange |
Created by:
myoung15
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