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Photosynthesis Notes
Test Review
| Question | Answer |
|---|---|
| light dependent reactions | reaction in photosynthesis that needs light and produces oxygen |
| light independent reactions | reaction in photosynthesis that doesn't require light |
| stroma | where the light independent reactions take place |
| thlykoid membrane | where the light dependent reactions take place |
| ATP & NADPH | products of the light dependent reaction |
| PGAL | product of the light indpendent reaction |
| photolysis | break-down of water (the splitting of the atoms to give away hydrogen to choloroplasts) |
| Calvin cycle | light independent reactions' other name |
| Dark reactions | uses the enzyme Rubisco as a bonding agent and undergoes carbon fixation |
| photons | bursts/packets of light that compose light and other types of radiation |
| photosystem | light is captured; electrons released; go through electron energy train; energy released; ATP created |
| Redox | (Reduction Oxidation reactions) when you add reduce (add) electrons or hydrogen atoms |
| Oxidation | taking electrons away or removing hydrogen |
| Reduction | adding electrons or hydrogen atoms |
| NADP goes to what? | NADPH (adding hydrogen atoms through the Redox process |
| oxygenic photoautotroph | organism that absorbs and converts energy into the stored energy of chemical bonds in organic molecules (this process) |
| stroma | inner membrane of a chloroplast encloses this fluid-filled region |
| thylakoids | inner-connected disk-like sacks |
| grana | stacks of thylakoids |
| chlorophyll a & b, carotene | different pigments of chlorophyll found in chloroplasts |
| light i & d reactions | the two stages of photosynthesis |
| electrons move up another energy level | when they strike certain atoms of pigments during photosynthesis and leads to the generation of ATP |
| carbon dioxide and water | reactants for photosynthesis |
| sugar and oxygen | products of photosynthesis |
| function of l-d reactions | they convert light energy into chemical energy, producing ATP & NADPH for the dark reactions |
| accessory pigments/ antenna complexes | part of the photosystem that traps light and transfer energy to a complex of chlorophyll molecules and proteins called the reaction center |
| electrons from photolysis | the electrons lost by chlorophyll P680 molecules |
| electrons from ETS | the electrons lost by chlorophyll P700 |
| production of ATP | primary function of Photosystem I |
| production of NADPH | primary function of Photosystem II |
| cyclic photophosporylation | process involving Photosystem I, and produces ATP but NOT NADPH |
| PGAL | overall functions of the light- independent reactions- production of _____ that turns into sugars |
| l-d & i reactions | the light-d reactions produces energy needed in the light-i reactions need |
| PGAL's functions | produces glucose |
| CO2 fixation | CO2 becomes organic |
| RuBP | ribulose biphosphate- starting materials for dark reactions (l-i) |
| C4 plants | corn, crabgrass, etc. |
| CAM plants | plants like cacti in hot, dry climates (absorption) |
| C4 and CAM | plants in hot, dry climates |
| Rubisco | joins RuBP & CO2 together in carbon fixation |
Created by:
shiningstar8993
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