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22 Cards in this Set
- Front
- Back
What do plants take in?
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Co2 + Water + light energy(sunligt)
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What do plants produce?
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O2 and Carbohydrates.
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Whats the reaction for photosynthesis?
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6CO2 + 12H2O + Light -> C6H12O + 6O2 + 6H2O
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Where does photosynthesis take place?
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In the chloroplast.
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What happens in light reaction of photosynthesis?
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Electron transport and photophosphorylation produce ATP and reduce NADP+ to NADPH + H+.
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What is ATP and NADPH + H+ needed for?
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To reduce CO2 in the Calvin-Benson Cycle, forming carbohydrates.
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What two photosystems do noncyclic transport use?
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Photosystem II and Photosystem I
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What is photosystem II?
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It uses P680 Chlorophyll from which light-exited electrons are passed to a redox chain that drives chemiosmotic ATP production.
Light driven oxidation of water releases o2 and passes electrons from water to the P680 Chlorophyll. |
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What is photosystem I?
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It passes electrons from p700 chlorophyll to another redox chain and then to NADP+ forming NADPH + H+.
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What does Photosystem two use and produce?
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It uses light to oxidize water molecules producing electrons, H+ and O2.
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What does P680 stand for?
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For the maximum absorption of light which in this case is 680nm.
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What does photosystem I reduce?
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An oxidizen agent named ferredoxin(Fd) which in turn reduces NADP+ to NADPH + H+.
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What does the Calbin-Benson cycle do?
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It makes sugar from Co2.
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How was it discovered?
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Through the use of radioactive tracers.
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What phases does the Calbin-Benson cycle consist of?
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Fixation of Co2;
Reduction and carbohydrate production; Regeneration of RuBP. |
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What is rubisco?
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It's an enzyme that catalyze the reaction of Co2 and RuBP to form 3GP. It can also make O2 react but its less effective.
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What is photorespiration?
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It's the reaction between O2 and RuBP, which is Catalyzed by rubisco, reduces efficiency of photosynthesis.
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What organelles are responsible for photorespiration?
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Chloroplast;
Peroxisome; Mitochondria. |
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What is favored at high temperatures?
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Oxygenase (O2 + RuBP).
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Which plant can bypass chemical respiration with special chemical reaction and specialized leaf anatomy?
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C4 plant.
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How is photosynthesis and respiration linked?
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They're linked through Calbin-Benson cycle, citric acid cycle and glycolisys.
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To survive a plant has to ____ more than it ______.
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Photosynthesize more than it respires.
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