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21 Cards in this Set
- Front
- Back
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2 main reactions in photosynthesis?
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light dependent & light independent (calvin cycle)
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equation for photosynthesis?
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6 CO2 + 6 H2O + light --> 1 glucose + 6 O2
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This molecule donates electrons to photosystem 2?
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water (through photolysis)
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where photosynthesis occurs?
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chloroplast
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light absorbing pigment molecule?
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chlorophyll
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Final electron acceptor after photosystem 1 in light reaction?
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NADP
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Reaction the produces ATP in photosynthesis?
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light reaction (ETC in between P2 & P1)
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3 process in Calvin cycle
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carbon fixation, reduction & sugar production, regeneration of RuBP.
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enzyme responsible for CO2 fixation?
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rubisco
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ATP produce in light reactions is used in this reaction?
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Calvin cycle
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Explains why plants are green?
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chlorophyll reflects green light and absorbs blues & reds? Thus most photosynthetic activity at these ends of the spectrum.
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During fixation, CO2 combines with RuBP to form this?
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3PG
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3PG is reduced to form
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G3P
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Where light reactions take place in chloroplast?
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thylakoids
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Where calvin cycle takes place in chloroplast?
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stroma
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production of ATP using energy from sunlight is called?
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photophosphorylation
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Describes when rubisco adds O2 to RuBP instead of CO2. Causes plant inefficiency.
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photorespiration
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2 adaptations plants have evolved to minimize photorespiration.
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C4 and CAM
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These plants change the location of where carbon fixation occurs (from mesophyll cells to bundle sheath)>
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C4
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These plants improve photorespiration by timing. CO2 is fixed at night when stomata are open. Rest of Calvin cycle occurs during day.
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CAM
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Energy is transformed in photosynthesis from _____________ to _____________.
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light to chemical.
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